Chilkat Online Tools

GetFunction unicodeC Example

AWS AppSync

#include <C_CkRestW.h>
#include <C_CkAuthAwsW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkRestW rest;
    BOOL success;
    HCkAuthAwsW authAws;
    HCkStringBuilderW sbResponseBody;
    int respStatusCode;
    HCkJsonObjectW jResp;
    const wchar_t *DataSourceName;
    const wchar_t *Description;
    const wchar_t *FunctionArn;
    const wchar_t *FunctionId;
    const wchar_t *FunctionVersion;
    int MaxBatchSize;
    const wchar_t *Name;
    const wchar_t *RequestMappingTemplate;
    const wchar_t *ResponseMappingTemplate;
    const wchar_t *ConflictDetection;
    const wchar_t *ConflictHandler;
    const wchar_t *LambdaConflictHandlerArn;

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

    rest = CkRestW_Create();

    authAws = CkAuthAwsW_Create();
    CkAuthAwsW_putAccessKey(authAws,L"AWS_ACCESS_KEY");
    CkAuthAwsW_putSecretKey(authAws,L"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.)
    CkAuthAwsW_putRegion(authAws,L"us-west-2");
    CkAuthAwsW_putServiceName(authAws,L"appsync");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    CkRestW_SetAuthAws(rest,authAws);

    // URL: https://appsync.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = CkRestW_Connect(rest,L"appsync.us-west-2.amazonaws.com",443,TRUE,TRUE);
    if (success != TRUE) {
        wprintf(L"ConnectFailReason: %d\n",CkRestW_getConnectFailReason(rest));
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkRestW_Dispose(rest);
        CkAuthAwsW_Dispose(authAws);
        return;
    }

    CkRestW_AddHeader(rest,L"Content-Type",L"application/x-amz-json-1.1");
    CkRestW_AddHeader(rest,L"X-Amz-Target",L"GetFunction");

    sbResponseBody = CkStringBuilderW_Create();
    success = CkRestW_FullRequestNoBodySb(rest,L"GET",L"/v1/apis/{apiId}/functions/{functionId}",sbResponseBody);
    if (success != TRUE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkRestW_Dispose(rest);
        CkAuthAwsW_Dispose(authAws);
        CkStringBuilderW_Dispose(sbResponseBody);
        return;
    }

    respStatusCode = CkRestW_getResponseStatusCode(rest);
    wprintf(L"response status code = %d\n",respStatusCode);
    if (respStatusCode != 200) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",CkRestW_responseHeader(rest));
        wprintf(L"Response Body:\n");
        wprintf(L"%s\n",CkStringBuilderW_getAsString(sbResponseBody));
        CkRestW_Dispose(rest);
        CkAuthAwsW_Dispose(authAws);
        CkStringBuilderW_Dispose(sbResponseBody);
        return;
    }

    jResp = CkJsonObjectW_Create();
    CkJsonObjectW_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.

    DataSourceName = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.dataSourceName");
    Description = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.description");
    FunctionArn = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.functionArn");
    FunctionId = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.functionId");
    FunctionVersion = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.functionVersion");
    MaxBatchSize = CkJsonObjectW_IntOf(jResp,L"functionConfiguration.maxBatchSize");
    Name = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.name");
    RequestMappingTemplate = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.requestMappingTemplate");
    ResponseMappingTemplate = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.responseMappingTemplate");
    ConflictDetection = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.syncConfig.conflictDetection");
    ConflictHandler = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.syncConfig.conflictHandler");
    LambdaConflictHandlerArn = CkJsonObjectW_stringOf(jResp,L"functionConfiguration.syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn");

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

    // {
    //   "functionConfiguration": {
    //     "dataSourceName": "string",
    //     "description": "string",
    //     "functionArn": "string",
    //     "functionId": "string",
    //     "functionVersion": "string",
    //     "maxBatchSize": number,
    //     "name": "string",
    //     "requestMappingTemplate": "string",
    //     "responseMappingTemplate": "string",
    //     "syncConfig": {
    //       "conflictDetection": "string",
    //       "conflictHandler": "string",
    //       "lambdaConflictHandlerConfig": {
    //         "lambdaConflictHandlerArn": "string"
    //       }
    //     }
    //   }
    // }


    CkRestW_Dispose(rest);
    CkAuthAwsW_Dispose(authAws);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jResp);

    }