Chilkat Online Tools

DescribeEndpoint C Example

Amazon Comprehend

#include <C_CkRest.h>
#include <C_CkAuthAws.h>
#include <C_CkJsonObject.h>
#include <C_CkStringBuilder.h>

void ChilkatSample(void)
    {
    HCkRest rest;
    BOOL success;
    HCkAuthAws authAws;
    HCkJsonObject json;
    HCkStringBuilder sbRequestBody;
    HCkStringBuilder sbResponseBody;
    int respStatusCode;
    HCkJsonObject jResp;
    int CreationTime;
    int CurrentInferenceUnits;
    const char *DataAccessRoleArn;
    const char *DesiredDataAccessRoleArn;
    int DesiredInferenceUnits;
    const char *DesiredModelArn;
    const char *EndpointArn;
    int LastModifiedTime;
    const char *Message;
    const char *ModelArn;
    const char *Status;

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

    rest = CkRest_Create();

    authAws = CkAuthAws_Create();
    CkAuthAws_putAccessKey(authAws,"AWS_ACCESS_KEY");
    CkAuthAws_putSecretKey(authAws,"AWS_SECRET_KEY");

    // Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
    CkAuthAws_putRegion(authAws,"us-west-2");
    CkAuthAws_putServiceName(authAws,"comprehend");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    CkRest_SetAuthAws(rest,authAws);

    // URL: https://comprehend.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = CkRest_Connect(rest,"comprehend.us-west-2.amazonaws.com",443,TRUE,TRUE);
    if (success != TRUE) {
        printf("ConnectFailReason: %d\n",CkRest_getConnectFailReason(rest));
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        return;
    }

    // The following code creates the JSON request body.
    // The JSON created by this code is shown below.

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    json = CkJsonObject_Create();
    CkJsonObject_UpdateString(json,"EndpointArn","string");

    // The JSON request body created by the above code:

    // {
    //   "EndpointArn": "string"
    // }

    CkRest_AddHeader(rest,"Content-Type","application/x-amz-json-1.1");
    CkRest_AddHeader(rest,"X-Amz-Target","Comprehend_20171127.DescribeEndpoint");

    sbRequestBody = CkStringBuilder_Create();
    CkJsonObject_EmitSb(json,sbRequestBody);
    sbResponseBody = CkStringBuilder_Create();
    success = CkRest_FullRequestSb(rest,"POST","/",sbRequestBody,sbResponseBody);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbRequestBody);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    respStatusCode = CkRest_getResponseStatusCode(rest);
    printf("response status code = %d\n",respStatusCode);
    if (respStatusCode != 200) {
        printf("Response Header:\n");
        printf("%s\n",CkRest_responseHeader(rest));
        printf("Response Body:\n");
        printf("%s\n",CkStringBuilder_getAsString(sbResponseBody));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbRequestBody);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    jResp = CkJsonObject_Create();
    CkJsonObject_LoadSb(jResp,sbResponseBody);

    // The following code parses the JSON response.
    // A sample JSON response is shown below the sample code.

    // Use this online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    CreationTime = CkJsonObject_IntOf(jResp,"EndpointProperties.CreationTime");
    CurrentInferenceUnits = CkJsonObject_IntOf(jResp,"EndpointProperties.CurrentInferenceUnits");
    DataAccessRoleArn = CkJsonObject_stringOf(jResp,"EndpointProperties.DataAccessRoleArn");
    DesiredDataAccessRoleArn = CkJsonObject_stringOf(jResp,"EndpointProperties.DesiredDataAccessRoleArn");
    DesiredInferenceUnits = CkJsonObject_IntOf(jResp,"EndpointProperties.DesiredInferenceUnits");
    DesiredModelArn = CkJsonObject_stringOf(jResp,"EndpointProperties.DesiredModelArn");
    EndpointArn = CkJsonObject_stringOf(jResp,"EndpointProperties.EndpointArn");
    LastModifiedTime = CkJsonObject_IntOf(jResp,"EndpointProperties.LastModifiedTime");
    Message = CkJsonObject_stringOf(jResp,"EndpointProperties.Message");
    ModelArn = CkJsonObject_stringOf(jResp,"EndpointProperties.ModelArn");
    Status = CkJsonObject_stringOf(jResp,"EndpointProperties.Status");

    // A sample JSON response body parsed by the above code:

    // {
    //   "EndpointProperties": {
    //     "CreationTime": number,
    //     "CurrentInferenceUnits": number,
    //     "DataAccessRoleArn": "string",
    //     "DesiredDataAccessRoleArn": "string",
    //     "DesiredInferenceUnits": number,
    //     "DesiredModelArn": "string",
    //     "EndpointArn": "string",
    //     "LastModifiedTime": number,
    //     "Message": "string",
    //     "ModelArn": "string",
    //     "Status": "string"
    //   }
    // }


    CkRest_Dispose(rest);
    CkAuthAws_Dispose(authAws);
    CkJsonObject_Dispose(json);
    CkStringBuilder_Dispose(sbRequestBody);
    CkStringBuilder_Dispose(sbResponseBody);
    CkJsonObject_Dispose(jResp);

    }