Methods

token=`cat $HOME/.bluemix/config.json | jq .IAMToken -r`
refreshToken=`cat $HOME/.bluemix/config.json | jq .IAMRefreshToken -r`
delegatedRefreshToken=$(curl -X POST 'https://iam.cloud.ibm.com/identity/token'   -H 'Content-Type: application/x-www-form-urlencoded'   -H 'Authorization: Basic Yng6Yng='   -d "grant_type=refresh_token&refresh_token=${refreshToken}&response_type=delegated_refresh_token&receiver_client_ids=ce&delegated_refresh_token_expiry=3600"  | jq .delegated_refresh_token -r)
id=`ibmcloud ce project get -n ${CE_PROJECT_NAME} -o jsonpath={.guid}`
curl -H "Authorization: ${token}" -H "X-Delegated-Refresh-Token: ${delegatedRefreshToken}"   https://api.${CE_PROJECT_REGION}.codeengine.cloud.ibm.com/api/v1/project/${id}/config"

IamAuthenticator authenticator = new IamAuthenticator(System.getenv("CE_API_KEY"));
authenticator.setClientIdAndSecret("bx", "bx");

IbmCloudCodeEngine ceClient = new IbmCloudCodeEngine("Code Engine Client", authenticator);
ceClient.setServiceUrl("https://api." + System.getenv("CE_PROJECT_REGION") + ".codeengine.cloud.ibm.com/api/v1");

URL iamUrl = new URL("https://iam.cloud.ibm.com/identity/token?"
  + "grant_type=urn:ibm:params:oauth:grant-type:apikey&"
  + "response_type=delegated_refresh_token&"
  + "receiver_client_ids=ce&"
  + "delegated_refresh_token_expiry=3600&"
  + "apikey="
  + System.getenv("CE_API_KEY"));
HttpURLConnection iamConnection = (HttpURLConnection) iamUrl.openConnection();
iamConnection.setRequestMethod("POST");
iamConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
BufferedReader iamInput = new BufferedReader(new InputStreamReader(iamConnection.getInputStream()));
String iamResponse = "";
String iamInputLine = "";
while ((iamInputLine = iamInput.readLine()) != null) {
  iamResponse = iamResponse + iamInputLine;
}
iamInput.close();
JSONObject iamJson = new JSONObject(iamResponse);
String delegatedRefreshToken = iamJson.getString("delegated_refresh_token");

GetKubeconfigOptions options = new GetKubeconfigOptions.Builder()
  .id(System.getenv("CE_PROJECT_ID"))
  .xDelegatedRefreshToken(delegatedRefreshToken)
  .build();

Response<String> kubeConfigResponse = ceClient.getKubeconfig(options).execute();
String kubeConfigString = kubeConfigResponse.getResult();

const authenticator = new IamAuthenticator({
  apikey: process.env.CE_API_KEY,
  clientId: 'bx',
  clientSecret: 'bx',
});

const ceClient = new CodeEngineV1({
  authenticator,
  serviceUrl: `https://api.${process.env.CE_PROJECT_REGION}.codeengine.cloud.ibm.com/api/v1`,
});

const iamResponse = await axios.post('https://iam.cloud.ibm.com/identity/token', querystring.stringify({
  grant_type: 'urn:ibm:params:oauth:grant-type:apikey',
  apikey: process.env.CE_API_KEY,
  response_type: 'delegated_refresh_token',
  receiver_client_ids: 'ce',
  delegated_refresh_token_expiry: '3600'
}), {
  headers: {
    'Content-Type': 'application/x-www-form-urlencoded'
  }
})
const delegatedRefreshToken = iamResponse.data.delegated_refresh_token;

const configResponse = await ceClient.getKubeconfig({
  xDelegatedRefreshToken: delegatedRefreshToken,
  id: process.env.CE_PROJECT_ID,
});

authenticator = IAMAuthenticator(
    apikey=os.environ.get('CE_API_KEY'),
    client_id='bx',
    client_secret='bx',
)

ce_client = IbmCloudCodeEngineV1(authenticator=authenticator)
ce_client.set_service_url(
    'https://api.' + os.environ.get('CE_PROJECT_REGION') + '.codeengine.cloud.ibm.com/api/v1'
)

iam_response = requests.post('https://iam.cloud.ibm.com/identity/token', headers={
    'Content-Type': 'application/x-www-form-urlencoded'
}, data={
    'grant_type': 'urn:ibm:params:oauth:grant-type:apikey',
    'apikey': os.environ.get('CE_API_KEY'),
    'response_type': 'delegated_refresh_token',
    'receiver_client_ids': 'ce',
    'delegated_refresh_token_expiry': '3600'
})
delegated_refresh_token = iam_response.json()['delegated_refresh_token']

kubeconfig_response = ce_client.get_kubeconfig(
    x_delegated_refresh_token=delegated_refresh_token,
    id=os.environ.get('CE_PROJECT_ID'),
)
kubeconfig_string = kubeconfig_response.get_result().content

authenticator := &core.IamAuthenticator{
  ApiKey:       os.Getenv("CE_API_KEY"),
  ClientId:     "bx",
  ClientSecret: "bx",
}

ceClient, _ := ibmcloudcodeenginev1.NewIbmCloudCodeEngineV1(&ibmcloudcodeenginev1.IbmCloudCodeEngineV1Options{
  Authenticator: authenticator,
  URL:           "https://api." + os.Getenv("CE_PROJECT_REGION") + ".codeengine.cloud.ibm.com/api/v1",
})

iamRequestData := url.Values{}
iamRequestData.Set("grant_type", "urn:ibm:params:oauth:grant-type:apikey")
iamRequestData.Set("apikey", os.Getenv("CE_API_KEY"))
iamRequestData.Set("response_type", "delegated_refresh_token")
iamRequestData.Set("receiver_client_ids", "ce")
iamRequestData.Set("delegated_refresh_token_expiry", "3600")
client := &http.Client{}
req, _ := http.NewRequest("POST", "https://iam.cloud.ibm.com/identity/token", strings.NewReader(iamRequestData.Encode()))
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
resp, _ := client.Do(req)
var iamResponseData map[string]string
json.NewDecoder(resp.Body).Decode(&iamResponseData)
delegatedRefreshToken := iamResponseData["delegated_refresh_token"]

projectID := os.Getenv("CE_PROJECT_ID")
result, _, _ := ceClient.GetKubeconfig(&ibmcloudcodeenginev1.GetKubeconfigOptions{
  XDelegatedRefreshToken: &delegatedRefreshToken,
  ID:           &projectID,
})