Chilkat Online Tools

ListDatasets C++ Example

AWS IoT Analytics

#include <CkRest.h>
#include <CkAuthAws.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>

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

    CkRest rest;
    bool success;

    CkAuthAws authAws;
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("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.)
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("iotanalytics");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws);

    // URL: https://iotanalytics.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("iotanalytics.us-west-2.amazonaws.com",443,true,true);
    if (success != true) {
        std::cout << "ConnectFailReason: " << rest.get_ConnectFailReason() << "\r\n";
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    rest.AddHeader("Content-Type","application/x-amz-json-1.1");
    rest.AddHeader("X-Amz-Target","ListDatasets");

    CkStringBuilder sbResponseBody;
    success = rest.FullRequestNoBodySb("GET","/datasets",sbResponseBody);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    int respStatusCode = rest.get_ResponseStatusCode();
    std::cout << "response status code = " << respStatusCode << "\r\n";
    if (respStatusCode != 200) {
        std::cout << "Response Header:" << "\r\n";
        std::cout << rest.responseHeader() << "\r\n";
        std::cout << "Response Body:" << "\r\n";
        std::cout << sbResponseBody.getAsString() << "\r\n";
        return;
    }

    CkJsonObject jResp;
    jResp.LoadSb(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.

    int creationTime;
    const char *datasetName = 0;
    int lastUpdateTime;
    const char *status = 0;
    int j;
    int count_j;
    const char *actionName = 0;
    const char *actionType = 0;
    const char *Name = 0;
    const char *Expression = 0;

    const char *nextToken = jResp.stringOf("nextToken");
    int i = 0;
    int count_i = jResp.SizeOfArray("datasetSummaries");
    while (i < count_i) {
        jResp.put_I(i);
        creationTime = jResp.IntOf("datasetSummaries[i].creationTime");
        datasetName = jResp.stringOf("datasetSummaries[i].datasetName");
        lastUpdateTime = jResp.IntOf("datasetSummaries[i].lastUpdateTime");
        status = jResp.stringOf("datasetSummaries[i].status");
        j = 0;
        count_j = jResp.SizeOfArray("datasetSummaries[i].actions");
        while (j < count_j) {
            jResp.put_J(j);
            actionName = jResp.stringOf("datasetSummaries[i].actions[j].actionName");
            actionType = jResp.stringOf("datasetSummaries[i].actions[j].actionType");
            j = j + 1;
        }

        j = 0;
        count_j = jResp.SizeOfArray("datasetSummaries[i].triggers");
        while (j < count_j) {
            jResp.put_J(j);
            Name = jResp.stringOf("datasetSummaries[i].triggers[j].dataset.name");
            Expression = jResp.stringOf("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"
    // }
    }