(C) AWS Security Token Service (STS) GetSessionToken

See more AWS Security Token Service Examples

Returns a set of temporary credentials for an AWS account or IAM user.

For more information, see https://docs.aws.amazon.com/STS/latest/APIReference/API_GetSessionToken.html

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#include <C_CkRest.h>
#include <C_CkAuthAws.h>
#include <C_CkXml.h>

void ChilkatSample(void)
    {
    HCkRest rest;
    BOOL bTls;
    int port;
    BOOL bAutoReconnect;
    BOOL success;
    HCkAuthAws authAws;
    const char *responseXml;
    HCkXml xml;
    const char *GetSessionTokenResponse_xmlns;
    const char *AccessKeyId;
    const char *SecretAccessKey;
    const char *SessionToken;
    const char *Expiration;
    const char *RequestId;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    rest = CkRest_Create();

    // Connect to the Amazon AWS REST server.
    // such as https://sts.us-west-2.amazonaws.com/
    bTls = TRUE;
    port = 443;
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"sts.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    authAws = CkAuthAws_Create();
    CkAuthAws_putAccessKey(authAws,"AWS_ACCESS_KEY");
    CkAuthAws_putSecretKey(authAws,"AWS_SECRET_KEY");
    // the region should match our URL above..
    // See https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html
    CkAuthAws_putRegion(authAws,"us-west-2");
    CkAuthAws_putServiceName(authAws,"sts");

    CkRest_SetAuthAws(rest,authAws);

    CkRest_AddQueryParam(rest,"Version","2011-06-15");
    CkRest_AddQueryParam(rest,"Action","GetSessionToken");
    CkRest_AddQueryParam(rest,"DurationSeconds","3600");

    responseXml = CkRest_fullRequestNoBody(rest,"GET","/");
    if (CkRest_getLastMethodSuccess(rest) != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        return;
    }

    // A successful response will have a status code equal to 200.
    if (CkRest_getResponseStatusCode(rest) != 200) {
        printf("response status code = %d\n",CkRest_getResponseStatusCode(rest));
        printf("response status text = %s\n",CkRest_responseStatusText(rest));
        printf("response header: %s\n",CkRest_responseHeader(rest));
        printf("response body: %s\n",responseXml);
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        return;
    }

    // Examine the successful XML response (shown below)
    xml = CkXml_Create();
    CkXml_LoadXml(xml,responseXml);
    printf("%s\n",CkXml_getXml(xml));

    // Sample response:

    // <?xml version="1.0" encoding="utf-8"?>
    // <GetSessionTokenResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
    //     <GetSessionTokenResult>
    //         <Credentials>
    //             <AccessKeyId>AS........T4N</AccessKeyId>
    //             <SecretAccessKey>05W........ARPMr</SecretAccessKey>
    //             <SessionToken>IQoJb3J........llpIMI=</SessionToken>
    //             <Expiration>2022-09-07T00:22:51Z</Expiration>
    //         </Credentials>
    //     </GetSessionTokenResult>
    //     <ResponseMetadata>
    //         <RequestId>8bad22cc-1c55-4265-a010-45d139359404</RequestId>
    //     </ResponseMetadata>
    // </GetSessionTokenResponse>

    // Sample parse code:
    GetSessionTokenResponse_xmlns = CkXml_getAttrValue(xml,"xmlns");
    AccessKeyId = CkXml_getChildContent(xml,"GetSessionTokenResult|Credentials|AccessKeyId");
    SecretAccessKey = CkXml_getChildContent(xml,"GetSessionTokenResult|Credentials|SecretAccessKey");
    SessionToken = CkXml_getChildContent(xml,"GetSessionTokenResult|Credentials|SessionToken");
    Expiration = CkXml_getChildContent(xml,"GetSessionTokenResult|Credentials|Expiration");
    RequestId = CkXml_getChildContent(xml,"ResponseMetadata|RequestId");

    // Save the session token XML to a file for use by another Chilkat example..
    success = CkXml_SaveXml(xml,"qa_data/tokens/aws_session_token.xml");


    CkRest_Dispose(rest);
    CkAuthAws_Dispose(authAws);
    CkXml_Dispose(xml);

    }