C++

DynamoDB - ListTables

See more Amazon DynamoDB Examples

Returns an array of table names associated with the current account and endpoint. The output from ListTables is paginated, with each page returning a maximum of 100 table names. C++

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

void ChilkatSample(void)
    {
    bool success = false;

    CkRest rest;

    // Implements the following CURL command:

    // curl -X POST https://dynamodb.us-west-2.amazonaws.com/ \
    //   -H "Accept-Encoding: identity" \
    //   -H "Content-Type: application/x-amz-json-1.0" \
    //   -H "Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<Headers>, Signature=<Signature>" \
    //   -H "X-Amz-Date: <Date>" \
    //   -H "X-Amz-Target: DynamoDB_20120810.ListTables" \
    //   -d '{
    //     "Limit": 100
    // }'

    // Use the following online tool to generate REST code from a CURL command
    // Convert a cURL Command to REST Source Code

    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("dynamodb");

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

    // URL: https://dynamodb.us-west-2.amazonaws.com/
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    // Don't forget to change the region domain (us-west-2.amazonaws.com) to your particular region.
    success = rest.Connect("dynamodb.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != true) {
        std::cout << "ConnectFailReason: " << rest.get_ConnectFailReason() << "\r\n";
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    // Note: The above code does not need to be repeatedly called for each REST request.
    // The rest object can be setup once, and then many requests can be sent.  Chilkat will automatically
    // reconnect within a FullRequest* method as needed.  It is only the very first connection that is explicitly
    // made via the Connect method.

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    // The following JSON is sent in the request body.

    // {
    //   "Limit": 100
    // }

    CkJsonObject json;
    json.UpdateInt("Limit",100);

    rest.AddHeader("Content-Type","application/x-amz-json-1.0");
    rest.AddHeader("X-Amz-Target","DynamoDB_20120810.ListTables");
    rest.AddHeader("Accept-Encoding","identity");

    CkStringBuilder sbRequestBody;
    json.EmitSb(sbRequestBody);
    CkStringBuilder sbResponseBody;
    success = rest.FullRequestSb("POST","/",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 >= 400) {
        std::cout << "Response Status Code = " << respStatusCode << "\r\n";
        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 jsonResponse;
    jsonResponse.LoadSb(sbResponseBody);

    jsonResponse.put_EmitCompact(false);
    std::cout << jsonResponse.emit() << "\r\n";

    // Sample JSON response:

    // {
    //     "LastEvaluatedTableName": "Thread",
    //     "TableNames": ["Forum","Reply","Thread"]
    // }

    const char *strVal = 0;

    const char *LastEvaluatedTableName = jsonResponse.stringOf("LastEvaluatedTableName");
    int i = 0;
    int count_i = jsonResponse.SizeOfArray("TableNames");
    while (i < count_i) {
        jsonResponse.put_I(i);
        strVal = jsonResponse.stringOf("TableNames[i]");
        i = i + 1;
    }
    }