Chilkat Online Tools

DescribeStream C++ Example

Amazon Kinesis Video Streams

#include <CkRest.h>
#include <CkAuthAws.h>
#include <CkJsonObject.h>
#include <CkStringBuilder.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("kinesisvideo");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws);

    // URL: https://kinesisvideo.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("kinesisvideo.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;
    }

    // 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

    CkJsonObject json;
    json.UpdateString("ExclusiveStartShardId","string");
    json.UpdateInt("Limit",123);
    json.UpdateString("StreamName","string");

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

    // {
    //   "ExclusiveStartShardId": "string",
    //   "Limit": number,
    //   "StreamName": "string"
    // }

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

    CkStringBuilder sbRequestBody;
    json.EmitSb(sbRequestBody);
    CkStringBuilder sbResponseBody;
    success = rest.FullRequestSb("POST","/describeStream",sbRequestBody,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 j;
    int count_j;
    const char *strVal = 0;
    const char *AdjacentParentShardId = 0;
    const char *EndingHashKey = 0;
    const char *StartingHashKey = 0;
    const char *ParentShardId = 0;
    const char *EndingSequenceNumber = 0;
    const char *StartingSequenceNumber = 0;
    const char *ShardId = 0;

    const char *EncryptionType = jResp.stringOf("StreamDescription.EncryptionType");
    int HasMoreShards = jResp.IntOf("StreamDescription.HasMoreShards");
    const char *KeyId = jResp.stringOf("StreamDescription.KeyId");
    int RetentionPeriodHours = jResp.IntOf("StreamDescription.RetentionPeriodHours");
    const char *StreamARN = jResp.stringOf("StreamDescription.StreamARN");
    int StreamCreationTimestamp = jResp.IntOf("StreamDescription.StreamCreationTimestamp");
    const char *StreamMode = jResp.stringOf("StreamDescription.StreamModeDetails.StreamMode");
    const char *StreamName = jResp.stringOf("StreamDescription.StreamName");
    const char *StreamStatus = jResp.stringOf("StreamDescription.StreamStatus");
    int i = 0;
    int count_i = jResp.SizeOfArray("StreamDescription.EnhancedMonitoring");
    while (i < count_i) {
        jResp.put_I(i);
        j = 0;
        count_j = jResp.SizeOfArray("StreamDescription.EnhancedMonitoring[i].ShardLevelMetrics");
        while (j < count_j) {
            jResp.put_J(j);
            strVal = jResp.stringOf("StreamDescription.EnhancedMonitoring[i].ShardLevelMetrics[j]");
            j = j + 1;
        }

        i = i + 1;
    }

    i = 0;
    count_i = jResp.SizeOfArray("StreamDescription.Shards");
    while (i < count_i) {
        jResp.put_I(i);
        AdjacentParentShardId = jResp.stringOf("StreamDescription.Shards[i].AdjacentParentShardId");
        EndingHashKey = jResp.stringOf("StreamDescription.Shards[i].HashKeyRange.EndingHashKey");
        StartingHashKey = jResp.stringOf("StreamDescription.Shards[i].HashKeyRange.StartingHashKey");
        ParentShardId = jResp.stringOf("StreamDescription.Shards[i].ParentShardId");
        EndingSequenceNumber = jResp.stringOf("StreamDescription.Shards[i].SequenceNumberRange.EndingSequenceNumber");
        StartingSequenceNumber = jResp.stringOf("StreamDescription.Shards[i].SequenceNumberRange.StartingSequenceNumber");
        ShardId = jResp.stringOf("StreamDescription.Shards[i].ShardId");
        i = i + 1;
    }

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

    // {
    //   "StreamDescription": {
    //     "EncryptionType": "string",
    //     "EnhancedMonitoring": [
    //       {
    //         "ShardLevelMetrics": [
    //           "string"
    //         ]
    //       }
    //     ],
    //     "HasMoreShards": boolean,
    //     "KeyId": "string",
    //     "RetentionPeriodHours": number,
    //     "Shards": [
    //       {
    //         "AdjacentParentShardId": "string",
    //         "HashKeyRange": {
    //           "EndingHashKey": "string",
    //           "StartingHashKey": "string"
    //         },
    //         "ParentShardId": "string",
    //         "SequenceNumberRange": {
    //           "EndingSequenceNumber": "string",
    //           "StartingSequenceNumber": "string"
    //         },
    //         "ShardId": "string"
    //       }
    //     ],
    //     "StreamARN": "string",
    //     "StreamCreationTimestamp": number,
    //     "StreamModeDetails": {
    //       "StreamMode": "string"
    //     },
    //     "StreamName": "string",
    //     "StreamStatus": "string"
    //   }
    // }
    }