Chilkat Online Tools

ListChannelMessages C++ Example

Amazon Chime

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

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

    CkStringBuilder sbResponseBody;
    success = rest.FullRequestNoBodySb("GET","/channels/{channelArn}/messages",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.

    const char *Content = 0;
    int CreatedTimestamp;
    int LastEditedTimestamp;
    int LastUpdatedTimestamp;
    const char *MessageId = 0;
    const char *Metadata = 0;
    int Redacted;
    const char *Arn = 0;
    const char *Name = 0;
    const char *v_Type = 0;

    const char *ChannelArn = jResp.stringOf("ChannelArn");
    const char *NextToken = jResp.stringOf("NextToken");
    int i = 0;
    int count_i = jResp.SizeOfArray("ChannelMessages");
    while (i < count_i) {
        jResp.put_I(i);
        Content = jResp.stringOf("ChannelMessages[i].Content");
        CreatedTimestamp = jResp.IntOf("ChannelMessages[i].CreatedTimestamp");
        LastEditedTimestamp = jResp.IntOf("ChannelMessages[i].LastEditedTimestamp");
        LastUpdatedTimestamp = jResp.IntOf("ChannelMessages[i].LastUpdatedTimestamp");
        MessageId = jResp.stringOf("ChannelMessages[i].MessageId");
        Metadata = jResp.stringOf("ChannelMessages[i].Metadata");
        Redacted = jResp.IntOf("ChannelMessages[i].Redacted");
        Arn = jResp.stringOf("ChannelMessages[i].Sender.Arn");
        Name = jResp.stringOf("ChannelMessages[i].Sender.Name");
        v_Type = jResp.stringOf("ChannelMessages[i].Type");
        i = i + 1;
    }

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

    // {
    //   "ChannelArn": "string",
    //   "ChannelMessages": [
    //     {
    //       "Content": "string",
    //       "CreatedTimestamp": number,
    //       "LastEditedTimestamp": number,
    //       "LastUpdatedTimestamp": number,
    //       "MessageId": "string",
    //       "Metadata": "string",
    //       "Redacted": boolean,
    //       "Sender": {
    //         "Arn": "string",
    //         "Name": "string"
    //       },
    //       "Type": "string"
    //     }
    //   ],
    //   "NextToken": "string"
    // }
    }