Tone Analyzer - IBM Cloud API Docs

Introduction

Last updated: 2021-06-11

The IBM Watson™ Tone Analyzer service uses linguistic analysis to detect emotional and language tones in written text. The service can analyze tone at both the document and sentence levels. You can use the service to understand how your written communications are perceived and then to improve the tone of your communications. Businesses can use the service to learn the tone of their customers' communications and to respond to each customer appropriately, or to understand and improve their customer conversations.

Note: Request logging is disabled for the Tone Analyzer service. Regardless of whether you set the X-Watson-Learning-Opt-Out request header, the service does not log or retain data from requests and responses.

This documentation describes Java SDK major version 9. For more information about how to update your code from the previous version, see the migration guide.

This documentation describes Node SDK major version 6. For more information about how to update your code from the previous version, see the migration guide.

This documentation describes Python SDK major version 5. For more information about how to update your code from the previous version, see the migration guide.

This documentation describes Ruby SDK major version 2. For more information about how to update your code from the previous version, see the migration guide.

This documentation describes .NET Standard SDK major version 5. For more information about how to update your code from the previous version, see the migration guide.

This documentation describes Go SDK major version 2. For more information about how to update your code from the previous version, see the migration guide.

This documentation describes Swift SDK major version 4. For more information about how to update your code from the previous version, see the migration guide.

This documentation describes Unity SDK major version 5. For more information about how to update your code from the previous version, see the migration guide.

The IBM Watson Unity SDK has the following requirements.

The SDK requires Unity version 2018.2 or later to support Transport Layer Security (TLS) 1.2.
- Set the project settings for both the Scripting Runtime Version and the Api Compatibility Level to .NET 4.x Equivalent.
- For more information, see TLS 1.0 support.
The SDK doesn't support the WebGL projects. Change your build settings to any platform except WebGL.

For more information about how to install and configure the SDK and SDK Core, see https://github.com/watson-developer-cloud/unity-sdk.

The code examples on this tab use the client library that is provided for Java.

Maven

<dependency>
  <groupId>com.ibm.watson</groupId>
  <artifactId>ibm-watson</artifactId>
  <version>9.2.0</version>
</dependency>

Gradle

compile 'com.ibm.watson:ibm-watson:9.2.0'

GitHub

https://github.com/watson-developer-cloud/java-sdk

The code examples on this tab use the client library that is provided for Node.js.

Installation

npm install ibm-watson@^6.1.1

GitHub

https://github.com/watson-developer-cloud/node-sdk

The code examples on this tab use the client library that is provided for Python.

Installation

pip install --upgrade "ibm-watson>=5.2.0"

GitHub

https://github.com/watson-developer-cloud/python-sdk

The code examples on this tab use the client library that is provided for Ruby.

Installation

gem install ibm_watson

GitHub

https://github.com/watson-developer-cloud/ruby-sdk

The code examples on this tab use the client library that is provided for Go.

go get -u github.com/watson-developer-cloud/go-sdk/v2@v2.1.0

GitHub

https://github.com/watson-developer-cloud/go-sdk

The code examples on this tab use the client library that is provided for Swift.

Cocoapods

pod 'IBMWatsonToneAnalyzerV3', '~> 4.2.1'

Carthage

github "watson-developer-cloud/swift-sdk" ~> 4.2.1

Swift Package Manager

.package(url: "https://github.com/watson-developer-cloud/swift-sdk", from: "4.2.1")

GitHub

https://github.com/watson-developer-cloud/swift-sdk

The code examples on this tab use the client library that is provided for .NET Standard.

Package Manager

Install-Package IBM.Watson.ToneAnalyzer.v3 -Version 5.2.0

.NET CLI

dotnet add package IBM.Watson.ToneAnalyzer.v3 --version 5.2.0

PackageReference

<PackageReference Include="IBM.Watson.ToneAnalyzer.v3" Version="5.2.0" />

GitHub

https://github.com/watson-developer-cloud/dotnet-standard-sdk

The code examples on this tab use the client library that is provided for Unity.

GitHub

https://github.com/watson-developer-cloud/unity-sdk

https://github.com/IBM/unity-sdk-core

Endpoint URLs

Identify the base URL for your service instance.

IBM Cloud URLs

The base URLs come from the service instance. To find the URL, view the service credentials by clicking the name of the service in the Resource list. Use the value of the URL. Add the method to form the complete API endpoint for your request.

The following example URL represents a Tone Analyzer instance that is hosted in Washington DC:

https://api.us-east.tone-analyzer.watson.cloud.ibm.com/instances/6bbda3b3-d572-45e1-8c54-22d6ed9e52c2

The following URLs represent the base URLs for Tone Analyzer. When you call the API, use the URL that corresponds to the location of your service instance.

Dallas: https://api.us-south.tone-analyzer.watson.cloud.ibm.com
Washington DC: https://api.us-east.tone-analyzer.watson.cloud.ibm.com
Frankfurt: https://api.eu-de.tone-analyzer.watson.cloud.ibm.com
London: https://api.eu-gb.tone-analyzer.watson.cloud.ibm.com
Seoul: https://api.kr-seo.tone-analyzer.watson.cloud.ibm.com
Sydney: https://api.au-syd.tone-analyzer.watson.cloud.ibm.com
Tokyo: https://api.jp-tok.tone-analyzer.watson.cloud.ibm.com

Set the correct service URL by calling the setServiceUrl() method of the service instance.

Set the correct service URL by specifying the serviceUrl parameter when you create the service instance.

Set the correct service URL by calling the set_service_url() method of the service instance.

Set the correct service URL by specifying the service_url property of the service instance.

Set the correct service URL by calling the SetServiceURL() method of the service instance.

Set the correct service URL by setting the serviceURL property of the service instance.

Set the correct service URL by calling the SetServiceUrl() method of the service instance.

Dallas API endpoint example for services managed on IBM Cloud

curl -X {request_method} -u "apikey:{apikey}" "https://api.us-south.tone-analyzer.watson.cloud.ibm.com/instances/{instance_id}"

Your service instance might not use this URL

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

IamAuthenticator authenticator = new IamAuthenticator("{apikey}");
ToneAnalyzer toneAnalyzer = new ToneAnalyzer("{version}", authenticator);
toneAnalyzer.setServiceUrl("https://api.us-east.tone-analyzer.watson.cloud.ibm.com");

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

const ToneAnalyzerV3 = require('ibm-watson/tone-analyzer/v3');
const { IamAuthenticator } = require('ibm-watson/auth');

const toneAnalyzer = new ToneAnalyzerV3({
  version: '{version}',
  authenticator: new IamAuthenticator({
    apikey: '{apikey}',
  }),
  serviceUrl: 'https://api.us-east.tone-analyzer.watson.cloud.ibm.com',
});

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

from ibm_watson import ToneAnalyzerV3
from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

authenticator = IAMAuthenticator('{apikey}')
tone_analyzer = ToneAnalyzerV3(
    version='{version}',
    authenticator=authenticator
)

tone_analyzer.set_service_url('https://api.us-east.tone-analyzer.watson.cloud.ibm.com')

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

require "ibm_watson/authenticators"
require "ibm_watson/tone_analyzer_v3"
include IBMWatson

authenticator = Authenticators::IamAuthenticator.new(
  apikey: "{apikey}"
)
tone_analyzer = ToneAnalyzerV3.new(
  version: "{version}",
  authenticator: authenticator
)
tone_analyzer.service_url = "https://api.us-east.tone-analyzer.watson.cloud.ibm.com"

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

toneAnalyzer, toneAnalyzerErr := toneanalyzerv3.NewToneAnalyzerV3(options)

if toneAnalyzerErr != nil {
  panic(toneAnalyzerErr)
}

toneAnalyzer.SetServiceURL("https://api.us-east.tone-analyzer.watson.cloud.ibm.com")

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

let authenticator = WatsonIAMAuthenticator(apiKey: "{apikey}")
let toneAnalyzer = ToneAnalyzer(version: "{version}", authenticator: authenticator)
toneAnalyzer.serviceURL = "https://api.us-east.tone-analyzer.watson.cloud.ibm.com"

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

IamAuthenticator authenticator = new IamAuthenticator(
    apikey: "{apikey}"
    );

ToneAnalyzerService toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("https://api.us-east.tone-analyzer.watson.cloud.ibm.com");

Default URL

https://api.us-south.tone-analyzer.watson.cloud.ibm.com

Example for the Washington DC location

var authenticator = new IamAuthenticator(
    apikey: "{apikey}"
);

while (!authenticator.CanAuthenticate())
    yield return null;

var toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("https://api.us-east.tone-analyzer.watson.cloud.ibm.com");

Disabling SSL verification

All Watson services use Secure Sockets Layer (SSL) (or Transport Layer Security (TLS)) for secure connections between the client and server. The connection is verified against the local certificate store to ensure authentication, integrity, and confidentiality.

If you use a self-signed certificate, you need to disable SSL verification to make a successful connection.

Enabling SSL verification is highly recommended. Disabling SSL jeopardizes the security of the connection and data. Disable SSL only if necessary, and take steps to enable SSL as soon as possible.

To disable SSL verification for a curl request, use the --insecure (-k) option with the request.

To disable SSL verification, create an HttpConfigOptions object and set the disableSslVerification property to true. Then, pass the object to the service instance by using the configureClient method.

To disable SSL verification, set the disableSslVerification parameter to true when you create the service instance.

To disable SSL verification, specify True on the set_disable_ssl_verification method for the service instance.

To disable SSL verification, set the disable_ssl_verification parameter to true in the configure_http_client() method for the service instance.

To disable SSL verification, call the DisableSSLVerification method on the service instance.

To disable SSL verification, call the disableSSLVerification() method on the service instance. You cannot disable SSL verification on Linux.

To disable SSL verification, set the DisableSslVerification method to true on the service instance.

Example to disable SSL verification. Replace {apikey} and {url} with your service credentials.

curl -k -X {request_method} -u "apikey:{apikey}" "{url}/{method}"

Example to disable SSL verification

IamAuthenticator authenticator = new IamAuthenticator("{apikey}");
ToneAnalyzer toneAnalyzer = new ToneAnalyzer("{version}", authenticator);
toneAnalyzer.setServiceUrl("{url}");

HttpConfigOptions configOptions = new HttpConfigOptions.Builder()
  .disableSslVerification(true)
  .build();
toneAnalyzer.configureClient(configOptions);

Example to disable SSL verification

const ToneAnalyzerV3 = require('ibm-watson/tone-analyzer/v3');
const { IamAuthenticator } = require('ibm-watson/auth');

const toneAnalyzer = new ToneAnalyzerV3({
  version: '{version}',
  authenticator: new IamAuthenticator({
    apikey: '{apikey}',
  }),
  serviceUrl: '{url}',
  disableSslVerification: true,
});

Example to disable SSL verification

from ibm_watson import ToneAnalyzerV3
from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

authenticator = IAMAuthenticator('{apikey}')
tone_analyzer = ToneAnalyzerV3(
    version='{version}',
    authenticator=authenticator
)

tone_analyzer.set_service_url('{url}')

tone_analyzer.set_disable_ssl_verification(True)

Example to disable SSL verification

require "ibm_watson/authenticators"
require "ibm_watson/tone_analyzer_v3"
include IBMWatson

authenticator = Authenticators::IamAuthenticator.new(
  apikey: "{apikey}"
)
tone_analyzer = ToneAnalyzerV3.new(
  version: "{version}",
  authenticator: authenticator
)
tone_analyzer.service_url = "{url}"

tone_analyzer.configure_http_client(disable_ssl_verification: true)

Example to disable SSL verification

toneAnalyzer, toneAnalyzerErr := toneanalyzerv3.NewToneAnalyzerV3(options)

if toneAnalyzerErr != nil {
  panic(toneAnalyzerErr)
}

toneAnalyzer.SetServiceURL("{url}")

toneAnalyzer.DisableSSLVerification()

Example to disable SSL verification

let authenticator = WatsonIAMAuthenticator(apiKey: "{apikey}")
let toneAnalyzer = ToneAnalyzer(version: "{version}", authenticator: authenticator)
toneAnalyzer.serviceURL = "{url}"

toneAnalyzer.disableSSLVerification()

Example to disable SSL verification

IamAuthenticator authenticator = new IamAuthenticator(
    apikey: "{apikey}"
    );

ToneAnalyzerService toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

toneAnalyzer.DisableSslVerification(true);

Example to disable SSL verification

var authenticator = new IamAuthenticator(
    apikey: "{apikey}"
);

while (!authenticator.CanAuthenticate())
    yield return null;

var toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

toneAnalyzer.DisableSslVerification = true;

Authentication

You authenticate to the API by using IBM Cloud Identity and Access Management (IAM).

You can pass either a bearer token in an authorization header or an API key. Tokens support authenticated requests without embedding service credentials in every call. API keys use basic authentication. For more information, see Authenticating to Watson services.

For testing and development, you can pass an API key directly.
For production use, unless you use the Watson SDKs, use an IAM token.

If you pass in an API key, use apikey for the username and the value of the API key as the password. For example, if the API key is f5sAznhrKQyvBFFaZbtF60m5tzLbqWhyALQawBg5TjRI in the service credentials, include the credentials in your call like this:

curl -u "apikey:f5sAznhrKQyvBFFaZbtF60m5tzLbqWhyALQawBg5TjRI"

For IBM Cloud instances, the SDK provides initialization methods for each form of authentication.

Use the API key to have the SDK manage the lifecycle of the access token. The SDK requests an access token, ensures that the access token is valid, and refreshes it if necessary.
Use the access token to manage the lifecycle yourself. You must periodically refresh the token.

For more information, see IAM authentication with the SDK.For more information, see IAM authentication with the SDK.For more information, see IAM authentication with the SDK.For more information, see IAM authentication with the SDK.For more information, see IAM authentication with the SDK.For more information, see IAM authentication with the SDK.For more information, see IAM authentication with the SDK.For more information, see IAM authentication with the SDK.

Replace {apikey} and {url} with your service credentials.

curl -X {request_method} -u "apikey:{apikey}" "{url}/v3/{method}"

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

IamAuthenticator authenticator = new IamAuthenticator("{apikey}");
ToneAnalyzer toneAnalyzer = new ToneAnalyzer("{version}", authenticator);
toneAnalyzer.setServiceUrl("{url}");

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

const ToneAnalyzerV3 = require('ibm-watson/tone-analyzer/v3');
const { IamAuthenticator } = require('ibm-watson/auth');

const toneAnalyzer = new ToneAnalyzerV3({
  version: '{version}',
  authenticator: new IamAuthenticator({
    apikey: '{apikey}',
  }),
  serviceUrl: '{url}',
});

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

from ibm_watson import ToneAnalyzerV3
from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

authenticator = IAMAuthenticator('{apikey}')
tone_analyzer = ToneAnalyzerV3(
    version='{version}',
    authenticator=authenticator
)

tone_analyzer.set_service_url('{url}')

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

require "ibm_watson/authenticators"
require "ibm_watson/tone_analyzer_v3"
include IBMWatson

authenticator = Authenticators::IamAuthenticator.new(
  apikey: "{apikey}"
)
tone_analyzer = ToneAnalyzerV3.new(
  version: "{version}",
  authenticator: authenticator
)
tone_analyzer.service_url = "{url}"

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

import (
  "github.com/IBM/go-sdk-core/core"
  "github.com/watson-developer-cloud/go-sdk/toneanalyzerv3"
)

func main() {
  authenticator := &core.IamAuthenticator{
    ApiKey: "{apikey}",
  }

  options := &toneanalyzerv3.ToneAnalyzerV3Options{
    Version: "{version}",
    Authenticator: authenticator,
  }

  toneAnalyzer, toneAnalyzerErr := toneanalyzerv3.NewToneAnalyzerV3(options)

  if toneAnalyzerErr != nil {
    panic(toneAnalyzerErr)
  }

  toneAnalyzer.SetServiceURL("{url}")
}

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

let authenticator = WatsonIAMAuthenticator(apiKey: "{apikey}")
let toneAnalyzer = ToneAnalyzer(version: "{version}", authenticator: authenticator)
toneAnalyzer.serviceURL = "{url}"

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

IamAuthenticator authenticator = new IamAuthenticator(
    apikey: "{apikey}"
    );

ToneAnalyzerService toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

SDK managing the IAM token. Replace {apikey}, {version}, and {url}.

var authenticator = new IamAuthenticator(
    apikey: "{apikey}"
);

while (!authenticator.CanAuthenticate())
    yield return null;

var toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

Access between services

Your application might use more than one Watson service. You can grant access between services and you can grant access to more than one service for your applications.

For IBM Cloud services, the method to grant access between Watson services varies depending on the type of API key. For more information, see IAM access.

To grant access between IBM Cloud services, create an authorization between the services. For more information, see Granting access between services.
To grant access to your services by applications without using user credentials, create a service ID, add an API key, and assign access policies. For more information, see Creating and working with service IDs.

When you give a user ID access to multiple services, use an endpoint URL that includes the service instance ID (for example, https://api.us-south.tone-analyzer.watson.cloud.ibm.com/instances/6bbda3b3-d572-45e1-8c54-22d6ed9e52c2). You can find the instance ID in two places:

By clicking the service instance row in the Resource list. The instance ID is the GUID in the details pane.
By clicking the name of the service instance in the list and looking at the credentials URL.

If you don't see the instance ID in the URL, the credentials predate service IDs. Add new credentials from the Service credentials page and use those credentials.

Versioning

API requests require a version parameter that takes a date in the format version=YYYY-MM-DD. When we change the API in a backwards-incompatible way, we release a new version date.

Send the version parameter with every API request. The service uses the API version for the date you specify, or the most recent version before that date. Don't default to the current date. Instead, specify a date that matches a version that is compatible with your app, and don't change it until your app is ready for a later version.

Specify the version to use on API requests with the version parameter when you create the service instance. The service uses the API version for the date you specify, or the most recent version before that date. Don't default to the current date. Instead, specify a date that matches a version that is compatible with your app, and don't change it until your app is ready for a later version.

This documentation describes the current version of Tone Analyzer, 2017-09-21. In some cases, differences in earlier versions are noted in the descriptions of parameters and response models.

Error handling

Tone Analyzer uses standard HTTP response codes to indicate whether a method completed successfully. HTTP response codes in the 2xx range indicate success. A response in the 4xx range is some sort of failure, and a response in the 5xx range usually indicates an internal system error that cannot be resolved by the user. Response codes are listed with the method.

ErrorResponse

Name	Description
code integer	The HTTP response code.
sub_code string	A service-specific error code.
error string	General description of an error.
help string	A URL to documentation explaining the cause and possibly solutions for the error.

The Java SDK generates an exception for any unsuccessful method invocation. All methods that accept an argument can also throw an IllegalArgumentException.

Exception	Description
IllegalArgumentException	An invalid argument was passed to the method.

When the Java SDK receives an error response from the Tone Analyzer service, it generates an exception from the com.ibm.watson.developer_cloud.service.exception package. All service exceptions contain the following fields.

Field	Description
statusCode	The HTTP response code that is returned.
message	A message that describes the error.

When the Node SDK receives an error response from the Tone Analyzer service, it creates an Error object with information that describes the error that occurred. This error object is passed as the first parameter to the callback function for the method. The contents of the error object are as shown in the following table.

Error

Field	Description
code	The HTTP response code that is returned.
message	A message that describes the error.

The Python SDK generates an exception for any unsuccessful method invocation. When the Python SDK receives an error response from the Tone Analyzer service, it generates an ApiException with the following fields.

Field	Description
code	The HTTP response code that is returned.
message	A message that describes the error.
info	A dictionary of additional information about the error.

When the Ruby SDK receives an error response from the Tone Analyzer service, it generates an ApiException with the following fields.

Field	Description
code	The HTTP response code that is returned.
message	A message that describes the error.
info	A dictionary of additional information about the error.

The Go SDK generates an error for any unsuccessful service instantiation and method invocation. You can check for the error immediately. The contents of the error object are as shown in the following table.

Error

Field	Description
code	The HTTP response code that is returned.
message	A message that describes the error.

The Swift SDK returns a WatsonError in the completionHandler any unsuccessful method invocation. This error type is an enum that conforms to LocalizedError and contains an errorDescription property that returns an error message. Some of the WatsonError cases contain associated values that reveal more information about the error.

Field	Description
errorDescription	A message that describes the error.

When the .NET Standard SDK receives an error response from the Tone Analyzer service, it generates a ServiceResponseException with the following fields.

Field	Description
Message	A message that describes the error.
CodeDescription	The HTTP response code that is returned.

When the Unity SDK receives an error response from the Tone Analyzer service, it generates an IBMError with the following fields.

Field	Description
Url	The URL that generated the error.
StatusCode	The HTTP response code returned.
ErrorMessage	A message that describes the error.
Response	The contents of the response from the server.
ResponseHeaders	A dictionary of headers returned by the request.

Example error handling

try {
  // Invoke a method
} catch (NotFoundException e) {
  // Handle Not Found (404) exception
} catch (RequestTooLargeException e) {
  // Handle Request Too Large (413) exception
} catch (ServiceResponseException e) {
  // Base class for all exceptions caused by error responses from the service
  System.out.println("Service returned status code "
    + e.getStatusCode() + ": " + e.getMessage());
}

Example error handling

toneAnalyzer.method(params)
  .catch(err => {
    console.log('error:', err);
  });

Example error handling

from ibm_watson import ApiException
try:
    # Invoke a method
except ApiException as ex:
    print "Method failed with status code " + str(ex.code) + ": " + ex.message

Example error handling

require "ibm_watson"
begin
  # Invoke a method
rescue IBMWatson::ApiException => ex
  print "Method failed with status code #{ex.code}: #{ex.error}"
end

Example error handling

import "github.com/watson-developer-cloud/go-sdk/toneanalyzerv3"

// Instantiate a service
toneAnalyzer, toneAnalyzerErr := toneanalyzerv3.NewToneAnalyzerV3(options)

// Check for errors
if toneAnalyzerErr != nil {
  panic(toneAnalyzerErr)
}

// Call a method
result, _, responseErr := toneAnalyzer.MethodName(&methodOptions)

// Check for errors
if responseErr != nil {
  panic(responseErr)
}

Example error handling

toneAnalyzer.method() {
  response, error in

  if let error = error {
    switch error {
    case let .http(statusCode, message, metadata):
      switch statusCode {
      case .some(404):
        // Handle Not Found (404) exception
        print("Not found")
      case .some(413):
        // Handle Request Too Large (413) exception
        print("Payload too large")
      default:
        if let statusCode = statusCode {
          print("Error - code: \(statusCode), \(message ?? "")")
        }
      }
    default:
      print(error.localizedDescription)
    }
    return
  }

  guard let result = response?.result else {
    print(error?.localizedDescription ?? "unknown error")
    return
  }

  print(result)
}

Example error handling

try
{
    // Invoke a method
}
catch(ServiceResponseException e)
{
    Console.WriteLine("Error: " + e.Message);
}
catch (Exception e)
{
    Console.WriteLine("Error: " + e.Message);
}

Example error handling

// Invoke a method
toneAnalyzer.MethodName(Callback, Parameters);

// Check for errors
private void Callback(DetailedResponse<ExampleResponse> response, IBMError error)
{
    if (error == null)
    {
        Log.Debug("ExampleCallback", "Response received: {0}", response.Response);
    }
    else
    {
        Log.Debug("ExampleCallback", "Error received: {0}, {1}, {3}", error.StatusCode, error.ErrorMessage, error.Response);
    }
}

Data handling

Additional headers

Some Watson services accept special parameters in headers that are passed with the request.

You can pass request header parameters in all requests or in a single request to the service.

To pass a request header, use the --header (-H) option with a curl request.

To pass header parameters with every request, use the setDefaultHeaders method of the service object. See Data collection for an example use of this method.

To pass header parameters in a single request, use the addHeader method as a modifier on the request before you execute it.

To pass header parameters with every request, specify the headers parameter when you create the service object. See Data collection for an example use of this method.

To pass header parameters in a single request, use the headers method as a modifier on the request before you execute it.

To pass header parameters with every request, specify the set_default_headers method of the service object. See Data collection for an example use of this method.

To pass header parameters in a single request, include headers as a dict in the request.

To pass header parameters with every request, specify the add_default_headers method of the service object. See Data collection for an example use of this method.

To pass header parameters in a single request, specify the headers method as a chainable method in the request.

To pass header parameters with every request, specify the SetDefaultHeaders method of the service object. See Data collection for an example use of this method.

To pass header parameters in a single request, specify the Headers as a map in the request.

To pass header parameters with every request, add them to the defaultHeaders property of the service object. See Data collection for an example use of this method.

To pass header parameters in a single request, pass the headers parameter to the request method.

To pass header parameters in a single request, use the WithHeader() method as a modifier on the request before you execute it. See Data collection for an example use of this method.

To pass header parameters in a single request, use the WithHeader() method as a modifier on the request before you execute it.

Example header parameter in a request

curl -X {request_method} -H "Request-Header: {header_value}" "{url}/v3/{method}"

Example header parameter in a request

ReturnType returnValue = toneAnalyzer.methodName(parameters)
  .addHeader("Custom-Header", "{header_value}")
  .execute();

Example header parameter in a request

const parameters = {
  {parameters}
};

toneAnalyzer.methodName(
  parameters,
  headers: {
    'Custom-Header': '{header_value}'
  })
   .then(result => {
    console.log(response);
  })
  .catch(err => {
    console.log('error:', err);
  });

Example header parameter in a request

response = tone_analyzer.methodName(
    parameters,
    headers = {
        'Custom-Header': '{header_value}'
    })

Example header parameter in a request

response = tone_analyzer.headers(
  "Custom-Header" => "{header_value}"
).methodName(parameters)

Example header parameter in a request

result, _, responseErr := toneAnalyzer.MethodName(
  &methodOptions{
    Headers: map[string]string{
      "Accept": "application/json",
    },
  },
)

Example header parameter in a request

let customHeader: [String: String] = ["Custom-Header": "{header_value}"]
toneAnalyzer.methodName(parameters, headers: customHeader) {
  response, error in
}

Example header parameter in a request

IamAuthenticator authenticator = new IamAuthenticator(
    apikey: "{apikey}"
    );

ToneAnalyzerService toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

toneAnalyzer.WithHeader("Custom-Header", "header_value");

Example header parameter in a request

var authenticator = new IamAuthenticator(
    apikey: "{apikey}"
);

while (!authenticator.CanAuthenticate())
    yield return null;

var toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

toneAnalyzer.WithHeader("Custom-Header", "header_value");

Response details

The Tone Analyzer service might return information to the application in response headers.

To access all response headers that the service returns, include the --include (-i) option with a curl request. To see detailed response data for the request, including request headers, response headers, and extra debugging information, include the --verbose (-v) option with the request.

Example request to access response headers

curl -X {request_method} {authentication_method} --include "{url}/v3/{method}"

To access information in the response headers, use one of the request methods that returns details with the response: executeWithDetails(), enqueueWithDetails(), or rxWithDetails(). These methods return a Response<T> object, where T is the expected response model. Use the getResult() method to access the response object for the method, and use the getHeaders() method to access information in response headers.

Example request to access response headers

Response<ReturnType> response = toneAnalyzer.methodName(parameters)
  .executeWithDetails();
// Access response from methodName
ReturnType returnValue = response.getResult();
// Access information in response headers
Headers responseHeaders = response.getHeaders();

All response data is available in the Response<T> object that is returned by each method. To access information in the response object, use the following properties.

Property	Description
`result`	Returns the response for the service-specific method.
`headers`	Returns the response header information.
`status`	Returns the HTTP status code.

Example request to access response headers

toneAnalyzer.methodName(parameters)
  .then(response => {
    console.log(response.headers);
  })
  .catch(err => {
    console.log('error:', err);
  });

The return value from all service methods is a DetailedResponse object. To access information in the result object or response headers, use the following methods.

DetailedResponse

Method	Description
`get_result()`	Returns the response for the service-specific method.
`get_headers()`	Returns the response header information.
`get_status_code()`	Returns the HTTP status code.

Example request to access response headers

tone_analyzer.set_detailed_response(True)
response = tone_analyzer.methodName(parameters)
# Access response from methodName
print(json.dumps(response.get_result(), indent=2))
# Access information in response headers
print(response.get_headers())
# Access HTTP response status
print(response.get_status_code())

The return value from all service methods is a DetailedResponse object. To access information in the response object, use the following properties.

DetailedResponse

Property	Description
`result`	Returns the response for the service-specific method.
`headers`	Returns the response header information.
`status`	Returns the HTTP status code.

Example request to access response headers

response = tone_analyzer.methodName(parameters)
# Access response from methodName
print response.result
# Access information in response headers
print response.headers
# Access HTTP response status
print response.status

The return value from all service methods is a DetailedResponse object. To access information in the response object or response headers, use the following methods.

DetailedResponse

Method	Description
`GetResult()`	Returns the response for the service-specific method.
`GetHeaders()`	Returns the response header information.
`GetStatusCode()`	Returns the HTTP status code.

Example request to access response headers

import (
  "github.com/IBM/go-sdk-core/core"
  "github.com/watson-developer-cloud/go-sdk/toneanalyzerv3"
)
result, response, responseErr := toneAnalyzer.MethodName(
  &methodOptions{})
// Access result
core.PrettyPrint(response.GetResult(), "Result ")

// Access response headers
core.PrettyPrint(response.GetHeaders(), "Headers ")

// Access status code
core.PrettyPrint(response.GetStatusCode(), "Status Code ")

All response data is available in the WatsonResponse<T> object that is returned in each method's completionHandler.

Example request to access response headers

toneAnalyzer.methodName(parameters) {
  response, error in

  guard let result = response?.result else {
    print(error?.localizedDescription ?? "unknown error")
    return
  }
  print(result) // The data returned by the service
  print(response?.statusCode)
  print(response?.headers)
}

The response contains fields for response headers, response JSON, and the status code.

DetailedResponse

Property	Description
`Result`	Returns the result for the service-specific method.
`Response`	Returns the raw JSON response for the service-specific method.
`Headers`	Returns the response header information.
`StatusCode`	Returns the HTTP status code.

Example request to access response headers

var results = toneAnalyzer.MethodName(parameters);

var result = results.Result;            //  The result object
var responseHeaders = results.Headers;  //  The response headers
var responseJson = results.Response;    //  The raw response JSON
var statusCode = results.StatusCode;    //  The response status code

The response contains fields for response headers, response JSON, and the status code.

DetailedResponse

Property	Description
`Result`	Returns the result for the service-specific method.
`Response`	Returns the raw JSON response for the service-specific method.
`Headers`	Returns the response header information.
`StatusCode`	Returns the HTTP status code.

Example request to access response headers

private void Example()
{
    toneAnalyzer.MethodName(Callback, Parameters);
}

private void Callback(DetailedResponse<ResponseType> response, IBMError error)
{
    var result = response.Result;                 //  The result object
    var responseHeaders = response.Headers;       //  The response headers
    var responseJson = reresponsesults.Response;  //  The raw response JSON
    var statusCode = response.StatusCode;         //  The response status code
}

Data collection

Data collection is disabled for the Tone Analyzer service. Regardless of whether you set the X-Watson-Learning-Opt-Out request header, the service does not log or retain data from requests and responses.

Example request

curl -u "apikey:{apikey}" -H "X-Watson-Learning-Opt-Out: true" "{url}/{method}"

Example request

Map<String, String> headers = new HashMap<String, String>();
headers.put("X-Watson-Learning-Opt-Out", "true");

toneAnalyzer.setDefaultHeaders(headers);

Example request

const ToneAnalyzerV3 = require('ibm-watson/tone-analyzer/v3');
const { IamAuthenticator } = require('ibm-watson/auth');

const toneAnalyzer = new ToneAnalyzerV3({
  version: '{version}',
  authenticator: new IamAuthenticator({
    apikey: '{apikey}',
  }),
  serviceUrl: '{url}',
  headers: {
    'X-Watson-Learning-Opt-Out': 'true'
  }
});

Example request

tone_analyzer.set_default_headers({'x-watson-learning-opt-out': "true"})

Example request

tone_analyzer.add_default_headers(headers: {"x-watson-learning-opt-out" => "true"})

Example request

import "net/http"

headers := http.Header{}
headers.Add("x-watson-learning-opt-out", "true")
toneAnalyzer.SetDefaultHeaders(headers)

Example request

toneAnalyzer.defaultHeaders["X-Watson-Learning-Opt-Out"] = "true"

Example request

IamAuthenticator authenticator = new IamAuthenticator(
    apikey: "{apikey}"
    );

ToneAnalyzerService toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

toneAnalyzer.WithHeader("X-Watson-Learning-Opt-Out", "true");

Example request

var authenticator = new IamAuthenticator(
    apikey: "{apikey}"
);

while (!authenticator.CanAuthenticate())
    yield return null;

var toneAnalyzer = new ToneAnalyzerService("{version}", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

toneAnalyzer.WithHeader("X-Watson-Learning-Opt-Out", "true");

Synchronous and asynchronous requests

The Java SDK supports both synchronous (blocking) and asynchronous (non-blocking) execution of service methods. All service methods implement the ServiceCall interface.

To call a method synchronously, use the execute method of the ServiceCall interface. You can call the execute method directly from an instance of the service.
To call a method asynchronously, use the enqueue method of the ServiceCall interface to receive a callback when the response arrives. The ServiceCallback interface of the method's argument provides onResponse and onFailure methods that you override to handle the callback.

The Ruby SDK supports both synchronous (blocking) and asynchronous (non-blocking) execution of service methods. All service methods implement the Concurrent::Async module. When you use the synchronous or asynchronous methods, an IVar object is returned. You access the DetailedResponse object by calling ivar_object.value.

For more information about the Ivar object, see the IVar class docs.

To call a method synchronously, either call the method directly or use the .await chainable method of the Concurrent::Async module.

Calling a method directly (without .await) returns a DetailedResponse object.
To call a method asynchronously, use the .async chainable method of the Concurrent::Async module.

You can call the .await and .async methods directly from an instance of the service.

Example synchronous request

ReturnType returnValue = toneAnalyzer.method(parameters).execute();

Example asynchronous request

toneAnalyzer.method(parameters).enqueue(new ServiceCallback<ReturnType>() {
  @Override public void onResponse(ReturnType response) {
    . . .
  }
  @Override public void onFailure(Exception e) {
    . . .
  }
});

Example synchronous request

response = tone_analyzer.method_name(parameters)

or

response = tone_analyzer.await.method_name(parameters)

Example asynchronous request

response = tone_analyzer.async.method_name(parameters)

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in plain text format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Use this GET method to analyze smaller quantities of plain text content. Use the Analyze general tone POST method to analyze larger amounts of content in any of the available formats.

Per the HTTP specification, the default encoding for plain text is ISO-8859-1 (effectively, the ASCII character set). Include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8.

See also: Using the general-purpose endpoint.

GET /v3/tone

Request

Custom Headers

Content-Language
string
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
Accept-Language
string
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en

Query Parameters

text
Required*
string
Plain text input that contains the content to be analyzed. You must URL-encode the input.
version
Required*
string
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
sentences
boolean
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
string[]
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]

Example request

curl -X GET -u "apikey:{apikey}" "{url}/v3/tone?version=2017-09-21&text=Team,%20I%20know%20that%20times%20are%20tough!%20Product%20sales%20have%20been%20disappointing%20for%20the%20past%20three%20quarters.%20We%20have%20a%20competitive%20product,%20but%20we%20need%20to%20do%20a%20better%20job%20of%20selling%20it!"

Response

Response Body

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

Status Code

200
OK. The request succeeded. If the input is partially correct, the response can include warning or error fields with appropriate messages.
400
Bad Request. A required input parameter is null or a specified input parameter or header value is invalid or not supported.
401
Unauthorized. Access is denied due to invalid service credentials.
404
Not Found. A requested item or parameter does not exist.
429
Too Many Requests. The service is throttling your request because your IBM Cloud ID submitted more than 1200 requests per minute.
500
Internal Server Error. The service encountered an internal error.

Example responses

Status 200

{
  "document_tone": {
    "tones": [
      {
        "score": 0.6165,
        "tone_id": "sadness",
        "tone_name": "Sadness"
      },
      {
        "score": 0.829888,
        "tone_id": "analytical",
        "tone_name": "Analytical"
      }
    ]
  },
  "sentences_tone": [
    {
      "sentence_id": 0,
      "text": "Team, I know that times are tough!",
      "tones": [
        {
          "score": 0.801827,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    },
    {
      "sentence_id": 1,
      "text": "Product sales have been disappointing for the past three quarters.",
      "tones": [
        {
          "score": 0.771241,
          "tone_id": "sadness",
          "tone_name": "Sadness"
        },
        {
          "score": 0.687768,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    },
    {
      "sentence_id": 2,
      "text": "We have a competitive product, but we need to do a better job of selling it!",
      "tones": [
        {
          "score": 0.506763,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    }
  ]
}

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

Use the general-purpose endpoint to analyze the tone of your input content. The service analyzes the content for emotional and language tones. The method always analyzes the tone of the full document; by default, it also analyzes the tone of each individual sentence of the content.

You can submit no more than 128 KB of total input content and no more than 1000 individual sentences in JSON, plain text, or HTML format. The service analyzes the first 1000 sentences for document-level analysis and only the first 100 sentences for sentence-level analysis.

Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8; per the HTTP specification, the default encoding for plain text and HTML is ISO-8859-1 (effectively, the ASCII character set). When specifying a content type of plain text or HTML, include the charset parameter to indicate the character encoding of the input text; for example: Content-Type: text/plain;charset=utf-8. For text/html, the service removes HTML tags and analyzes only the textual content.

See also: Using the general-purpose endpoint.

POST /v3/tone

(toneAnalyzer *ToneAnalyzerV3) Tone(toneOptions *ToneOptions) (result *ToneAnalysis, response *core.DetailedResponse, err error)

(toneAnalyzer *ToneAnalyzerV3) ToneWithContext(ctx context.Context, toneOptions *ToneOptions) (result *ToneAnalysis, response *core.DetailedResponse, err error)

ServiceCall<ToneAnalysis> tone(ToneOptions toneOptions)

tone(params)

tone(self,
        tone_input: Union['ToneInput', str, TextIO],
        *,
        content_type: str = None,
        sentences: bool = None,
        tones: List[str] = None,
        content_language: str = None,
        accept_language: str = None,
        **kwargs
    ) -> DetailedResponse

tone(tone_input:, content_type: nil, sentences: nil, tones: nil, content_language: nil, accept_language: nil)

func tone(
    toneContent: ToneContent,
    sentences: Bool? = nil,
    tones: [String]? = nil,
    contentLanguage: String? = nil,
    acceptLanguage: String? = nil,
    headers: [String: String]? = nil,
    completionHandler: @escaping (WatsonResponse<ToneAnalysis>?, WatsonError?) -> Void)

Tone(System.IO.MemoryStream toneInput, string contentType = null, bool? sentences = null, List<string> tones = null, string contentLanguage = null, string acceptLanguage = null)

Tone(Callback<ToneAnalysis> callback, System.IO.MemoryStream toneInput, string contentType = null, bool? sentences = null, List<string> tones = null, string contentLanguage = null, string acceptLanguage = null)

Request

Instantiate the ToneOptions struct and set the fields to provide parameter values for the Tone method.

Use the ToneOptions.Builder to create a ToneOptions object that contains the parameter values for the tone method.

Custom Headers

Content-Language
string
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
Accept-Language
string
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en
Content-Type
string
Allowable values: [application/json,text/plain,text/html]

Query Parameters

version
Required*
string
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
sentences
boolean
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
string[]
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]

Request Body

Required*

ToneInput

JSON, plain text, or HTML input that contains the content to be analyzed. For JSON input, provide an object of type ToneInput.

parameter

WithContext method only

ToneOptions

The Tone options.

ToneOptions

The tone options.

parameters

version
Required*
string
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
toneInput
Required*
ToneInput | string
JSON, plain text, or HTML input that contains the content to be analyzed. For JSON input, provide an object of type ToneInput.
contentType
string
The type of the input. A character encoding can be specified by including a charset parameter. For example, 'text/plain;charset=utf-8'.

Allowable values: [application/json,text/plain,text/html]
sentences
boolean
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
string[]
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]
contentLanguage
string
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
acceptLanguage
string
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en

parameters

self.version
Required*
str
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
ToneInput
Input for the general-purpose endpoint.
content_type
str
The type of the input. A character encoding can be specified by including a charset parameter. For example, 'text/plain;charset=utf-8'.

Allowable values: [application/json,text/plain,text/html]
sentences
bool
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
List[str]
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]
content_language
str
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
accept_language
str
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en

parameters

version
Required*
String
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
ToneInput
Input for the general-purpose endpoint.
content_type
String
The type of the input. A character encoding can be specified by including a charset parameter. For example, 'text/plain;charset=utf-8'.

Allowable values: [application/json,text/plain,text/html]
sentences
Boolean
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
Array[String]
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]
content_language
String
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
accept_language
String
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en

parameters

version
Required*
String
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
toneContent
Required*
ToneContent
JSON, plain text, or HTML input that contains the content to be analyzed. For JSON input, provide an object of type ToneInput.
sentences
Bool
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
[String]
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]
contentLanguage
String
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
acceptLanguage
String
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en

parameters

version
Required*
string
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
toneInput
Required*
System.IO.MemoryStream
JSON, plain text, or HTML input that contains the content to be analyzed. For JSON input, provide an object of type ToneInput.
contentType
string
The type of the input. A character encoding can be specified by including a charset parameter. For example, 'text/plain;charset=utf-8'.

Allowable values: [application/json,text/plain,text/html]
sentences
bool?
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
List<string>
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]
contentLanguage
string
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
acceptLanguage
string
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en

parameters

version
Required*
string
Release date of the version of the API you want to use. Specify dates in YYYY-MM-DD format. The current version is 2017-09-21.
toneInput
Required*
System.IO.MemoryStream
JSON, plain text, or HTML input that contains the content to be analyzed. For JSON input, provide an object of type ToneInput.
contentType
string
The type of the input. A character encoding can be specified by including a charset parameter. For example, 'text/plain;charset=utf-8'.

Allowable values: [application/json,text/plain,text/html]
sentences
bool?
Indicates whether the service is to return an analysis of each individual sentence in addition to its analysis of the full document. If true (the default), the service returns results for each sentence.

Default: true
tones
List<string>
2017-09-21: Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response.

2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.

Allowable values: [emotion,language,social]
contentLanguage
string
The language of the input text for the request: English or French. Regional variants are treated as their parent language; for example, en-US is interpreted as en. The input content must match the specified language. Do not submit content that contains both languages. You can use different languages for Content-Language and Accept-Language.
- 2017-09-21: Accepts en or fr.
- 2016-05-19: Accepts only en.
Allowable values: [en,fr]
Default: en
acceptLanguage
string
The desired language of the response. For two-character arguments, regional variants are treated as their parent language; for example, en-US is interpreted as en. You can use different languages for Content-Language and Accept-Language.

Allowable values: [ar,de,en,es,fr,it,ja,ko,pt-br,zh-cn,zh-tw]
Default: en

Example request

curl -X POST -u "apikey:{apikey}" --header "Content-Type: application/json"  --data-binary @tone.json  "{url}/v3/tone?version=2017-09-21"

Download sample file tone.json

Example request

IamAuthenticator authenticator = new IamAuthenticator(
    apikey: "{apikey}"
    );

ToneAnalyzerService toneAnalyzer = new ToneAnalyzerService("2017-09-21", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

ToneInput toneInput = new ToneInput()
{
    Text = "Team, I know that times are tough! Product sales have been disappointing for the past three quarters. We have a competitive product, but we need to do a better job of selling it!"
};

var result = toneAnalyzer.Tone(
    toneInput: toneInput
    );

Console.WriteLine(result.Response);

Example request

package main

import (
  "encoding/json"
  "fmt"
  "github.com/IBM/go-sdk-core/v5/core"
  "github.com/watson-developer-cloud/go-sdk/v2/toneanalyzerv3"
)

func main(){
  authenticator := &core.IamAuthenticator{
    ApiKey:     "{apikey}",
  }

  options := &toneanalyzerv3.ToneAnalyzerV3Options{
    Version: "2017-09-21",
    Authenticator: authenticator,
  }

  toneAnalyzer, toneAnalyzerErr := toneanalyzerv3.NewToneAnalyzerV3(options)

  if toneAnalyzerErr != nil {
    panic(toneAnalyzerErr)
  }

  toneAnalyzer.SetServiceURL("{url}")

  text := "Team, I know that times are tough! Product sales have been disappointing for the past three quarters. We have a competitive product, but we need to do a better job of selling it!"
  result, _, responseErr := toneAnalyzer.Tone(
    &toneanalyzerv3.ToneOptions{
      ToneInput: &toneanalyzerv3.ToneInput{
        Text: &text,
      },
      ContentType: core.StringPtr(toneanalyzerv3.ToneOptions_ContentType_ApplicationJSON),
    },
  )
  if responseErr != nil {
    panic(responseErr)
  }
  b, _ := json.MarshalIndent(result, "", "  ")
  fmt.Println(string(b))
}

Example request

IamAuthenticator authenticator = new IamAuthenticator("{apikey}");
ToneAnalyzer toneAnalyzer = new ToneAnalyzer("2017-09-21", authenticator);
toneAnalyzer.setServiceUrl("{url}");

String text = "Team, I know that times are tough! Product "
  + "sales have been disappointing for the past three "
  + "quarters. We have a competitive product, but we "
  + "need to do a better job of selling it!";

ToneOptions toneOptions = new ToneOptions.Builder()
  .text(text)
  .build();

ToneAnalysis toneAnalysis = toneAnalyzer.tone(toneOptions).execute().getResult();
System.out.println(toneAnalysis);

Example request

const ToneAnalyzerV3 = require('ibm-watson/tone-analyzer/v3');
const { IamAuthenticator } = require('ibm-watson/auth');

const toneAnalyzer = new ToneAnalyzerV3({
  version: '2017-09-21',
  authenticator: new IamAuthenticator({
    apikey: '{apikey}',
  }),
  serviceUrl: '{url}',
});

const text = 'Team, I know that times are tough! Product '
  + 'sales have been disappointing for the past three '
  + 'quarters. We have a competitive product, but we '
  + 'need to do a better job of selling it!';

const toneParams = {
  toneInput: { 'text': text },
  contentType: 'application/json',
};

toneAnalyzer.tone(toneParams)
  .then(toneAnalysis => {
    console.log(JSON.stringify(toneAnalysis, null, 2));
  })
  .catch(err => {
    console.log('error:', err);
  });

Example request

import json
from ibm_watson import ToneAnalyzerV3
from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

authenticator = IAMAuthenticator('{apikey}')
tone_analyzer = ToneAnalyzerV3(
    version='2017-09-21',
    authenticator=authenticator
)

tone_analyzer.set_service_url('{url}')

text = 'Team, I know that times are tough! Product '\
    'sales have been disappointing for the past three '\
    'quarters. We have a competitive product, but we '\
    'need to do a better job of selling it!'

tone_analysis = tone_analyzer.tone(
    {'text': text},
    content_type='application/json'
).get_result()
print(json.dumps(tone_analysis, indent=2))

Example request

require "json"
require "ibm_watson/authenticators"
require "ibm_watson/tone_analyzer_v3"
include IBMWatson

authenticator = Authenticators::IamAuthenticator.new(
  apikey: "{apikey}"
)

tone_analyzer = ToneAnalyzerV3.new(
  version: "2017-09-21",
  authenticator: authenticator
)
tone_analyzer.service_url = "{url}"

text = "Team, I know that times are tough! Product sales have been disappointing for the past three quarters. We have a competitive product, but we need to do a better job of selling it!"

tone = tone_analyzer.tone(
  tone_input: {text: text},
  content_type: "application/json"
)

puts JSON.pretty_generate(tone.result)

Example request

let authenticator = WatsonIAMAuthenticator(apiKey: "{apikey}")
let toneAnalyzer = ToneAnalyzer(version: "2017-09-21", authenticator: authenticator)
toneAnalyzer.serviceURL = "{url}"

let text = """
Team, I know that times are tough! Product \
sales have been disappointing for the past three \
quarters. We have a competitive product, but we \
need to do a better job of selling it!
"""

toneAnalyzer.tone(toneContent: .text(text)) {
  response, error in

  guard let toneAnalysis = response?.result else {
    print(error as Any)
    return
  }

  print(toneAnalysis)
}

Example request

var authenticator = new IamAuthenticator(
    apikey: "{apikey}"
);

while (!authenticator.CanAuthenticate())
    yield return null;

var toneAnalyzer = new ToneAnalyzerService("2017-09-21", authenticator);
toneAnalyzer.SetServiceUrl("{url}");

ToneAnalysis toneResponse = null;
ToneInput toneInput = new ToneInput()
{
    Text = "Team, I know that times are tough! Product sales have been disappointing for the past three quarters. We have a competitive product, but we need to do a better job of selling it!"
};
toneAnalyzer.Tone(
    callback: (DetailedResponse<ToneAnalysis> response, IBMError error) =>
    {
        Log.Debug("ToneAnalyzerServiceV3", "Tone result: {0}", response.Response);
        toneResponse = response.Result;
    },
    toneInput: toneInput
);

while (toneResponse == null)
    yield return null;

Response

Response Body

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

ToneAnalysis

The tone analysis results for the input from the general-purpose endpoint.

Status Code

200
OK. The request succeeded. If the input is partially correct, the response can include warning or error fields with appropriate messages.
400
Bad Request. A required input parameter is null or a specified input parameter or header value is invalid or not supported.
401
Unauthorized. Access is denied due to invalid service credentials.
404
Not Found. A requested item or parameter does not exist.
429
Too Many Requests. The service is throttling your request because your IBM Cloud ID submitted more than 1200 requests per minute.
500
Internal Server Error. The service encountered an internal error.

Example responses

Status 200

{
  "document_tone": {
    "tones": [
      {
        "score": 0.6165,
        "tone_id": "sadness",
        "tone_name": "Sadness"
      },
      {
        "score": 0.829888,
        "tone_id": "analytical",
        "tone_name": "Analytical"
      }
    ]
  },
  "sentences_tone": [
    {
      "sentence_id": 0,
      "text": "Team, I know that times are tough!",
      "tones": [
        {
          "score": 0.801827,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    },
    {
      "sentence_id": 1,
      "text": "Product sales have been disappointing for the past three quarters.",
      "tones": [
        {
          "score": 0.771241,
          "tone_id": "sadness",
          "tone_name": "Sadness"
        },
        {
          "score": 0.687768,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    },
    {
      "sentence_id": 2,
      "text": "We have a competitive product, but we need to do a better job of selling it!",
      "tones": [
        {
          "score": 0.506763,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    }
  ]
}

Success example

{
  "document_tone": {
    "tones": [
      {
        "score": 0.6165,
        "tone_id": "sadness",
        "tone_name": "Sadness"
      },
      {
        "score": 0.829888,
        "tone_id": "analytical",
        "tone_name": "Analytical"
      }
    ]
  },
  "sentences_tone": [
    {
      "sentence_id": 0,
      "text": "Team, I know that times are tough!",
      "tones": [
        {
          "score": 0.801827,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    },
    {
      "sentence_id": 1,
      "text": "Product sales have been disappointing for the past three quarters.",
      "tones": [
        {
          "score": 0.771241,
          "tone_id": "sadness",
          "tone_name": "Sadness"
        },
        {
          "score": 0.687768,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    },
    {
      "sentence_id": 2,
      "text": "We have a competitive product, but we need to do a better job of selling it!",
      "tones": [
        {
          "score": 0.506763,
          "tone_id": "analytical",
          "tone_name": "Analytical"
        }
      ]
    }
  ]
}

Use the customer-engagement endpoint to analyze the tone of customer service and customer support conversations. For each utterance of a conversation, the method reports the most prevalent subset of the following seven tones: sad, frustrated, satisfied, excited, polite, impolite, and sympathetic.

If you submit more than 50 utterances, the service returns a warning for the overall content and analyzes only the first 50 utterances. If you submit a single utterance that contains more than 500 characters, the service returns an error for that utterance and does not analyze the utterance. The request fails if all utterances have more than 500 characters. Per the JSON specification, the default character encoding for JSON content is effectively always UTF-8.