React Native

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. React Native

import { AuthAws, JsonObject, Rest, StringBuilder } from '@chilkat/react-native'

async function chilkatExample() {
  const rest = new 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

  const authAws = new AuthAws();
  authAws.accessKey = 'AWS_ACCESS_KEY';
  authAws.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.region = 'us-west-2';
  authAws.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/
  const bTls = true;
  const port = 443;
  const bAutoReconnect = true;
  // Don't forget to change the region domain (us-west-2.amazonaws.com) to your particular region.
  try {
    await rest.connectAsync('dynamodb.us-west-2.amazonaws.com', port, bTls, bAutoReconnect);
  } catch {
    console.log(`ConnectFailReason: ${rest.connectFailReason}`);
    console.log(rest.lastErrorText);
    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
  // }

  const json = new JsonObject();
  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');

  const sbRequestBody = new StringBuilder();
  json.emitSb(sbRequestBody);
  const sbResponseBody = new StringBuilder();
  try {
    await rest.fullRequestSbAsync('POST', '/', sbRequestBody, sbResponseBody);
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  const respStatusCode = rest.responseStatusCode;
  console.log(`response status code = ${respStatusCode}`);

  if (respStatusCode >= 400) {
    console.log(`Response Status Code = ${respStatusCode}`);
    console.log('Response Header:');
    console.log(rest.responseHeader);
    console.log('Response Body:');
    console.log(sbResponseBody.getAsString());
    return;
  }

  const jsonResponse = new JsonObject();
  jsonResponse.loadSb(sbResponseBody);

  jsonResponse.emitCompact = false;
  console.log(jsonResponse.emit());

  // Sample JSON response:

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

  let strVal = '';

  const lastEvaluatedTableName = jsonResponse.stringOf('LastEvaluatedTableName');
  let i = 0;
  const countI = jsonResponse.sizeOfArray('TableNames');
  while (i < countI) {
    jsonResponse.i = i;
    strVal = jsonResponse.stringOf('TableNames[i]');
    i++;
  }
}