Chilkat Online Tools

ListDatasets unicodeC Example

AWS IoT Analytics

#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;
    int creationTime;
    const wchar_t *datasetName;
    int lastUpdateTime;
    const wchar_t *status;
    int j;
    int count_j;
    const wchar_t *actionName;
    const wchar_t *actionType;
    const wchar_t *Name;
    const wchar_t *Expression;
    const wchar_t *nextToken;
    int i;
    int count_i;

    // 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"iotanalytics");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    CkRestW_SetAuthAws(rest,authAws);

    // URL: https://iotanalytics.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = CkRestW_Connect(rest,L"iotanalytics.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"ListDatasets");

    sbResponseBody = CkStringBuilderW_Create();
    success = CkRestW_FullRequestNoBodySb(rest,L"GET",L"/datasets",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.

    nextToken = CkJsonObjectW_stringOf(jResp,L"nextToken");
    i = 0;
    count_i = CkJsonObjectW_SizeOfArray(jResp,L"datasetSummaries");
    while (i < count_i) {
        CkJsonObjectW_putI(jResp,i);
        creationTime = CkJsonObjectW_IntOf(jResp,L"datasetSummaries[i].creationTime");
        datasetName = CkJsonObjectW_stringOf(jResp,L"datasetSummaries[i].datasetName");
        lastUpdateTime = CkJsonObjectW_IntOf(jResp,L"datasetSummaries[i].lastUpdateTime");
        status = CkJsonObjectW_stringOf(jResp,L"datasetSummaries[i].status");
        j = 0;
        count_j = CkJsonObjectW_SizeOfArray(jResp,L"datasetSummaries[i].actions");
        while (j < count_j) {
            CkJsonObjectW_putJ(jResp,j);
            actionName = CkJsonObjectW_stringOf(jResp,L"datasetSummaries[i].actions[j].actionName");
            actionType = CkJsonObjectW_stringOf(jResp,L"datasetSummaries[i].actions[j].actionType");
            j = j + 1;
        }

        j = 0;
        count_j = CkJsonObjectW_SizeOfArray(jResp,L"datasetSummaries[i].triggers");
        while (j < count_j) {
            CkJsonObjectW_putJ(jResp,j);
            Name = CkJsonObjectW_stringOf(jResp,L"datasetSummaries[i].triggers[j].dataset.name");
            Expression = CkJsonObjectW_stringOf(jResp,L"datasetSummaries[i].triggers[j].schedule.expression");
            j = j + 1;
        }

        i = i + 1;
    }

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

    // {
    //   "datasetSummaries": [
    //     {
    //       "actions": [
    //         {
    //           "actionName": "string",
    //           "actionType": "string"
    //         }
    //       ],
    //       "creationTime": number,
    //       "datasetName": "string",
    //       "lastUpdateTime": number,
    //       "status": "string",
    //       "triggers": [
    //         {
    //           "dataset": {
    //             "name": "string"
    //           },
    //           "schedule": {
    //             "expression": "string"
    //           }
    //         }
    //       ]
    //     }
    //   ],
    //   "nextToken": "string"
    // }


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

    }