React Native

Amazon Cognito - List User Pools

See more Amazon Cognito Examples

Lists the user pools associated with an AWS account. React Native

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

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

  const rest = new Rest();

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

  // URL: https://cognito-idp.us-west-2.amazonaws.com/
  const bTls = true;
  const port = 443;
  const bAutoReconnect = true;
  // Use the same region as specified above.
  try {
    await rest.connectAsync('cognito-idp.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.

  const json = new JsonObject();
  json.updateInt('MaxResults', 60);

  rest.addHeader('Content-Type', 'application/x-amz-json-1.0');
  rest.addHeader('X-Amz-Target', 'AWSCognitoIdentityProviderService.ListUserPools');
  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 !== 200) {
    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:
  // (Sample code for parsing the JSON response is shown below)

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

  // {
  //   "UserPools": [
  //     {
  //       "CreationDate": 1.636388909817E9,
  //       "Id": "us-west-2_yt6WzO3SA",
  //       "LambdaConfig": {},
  //       "LastModifiedDate": 1.636388910377E9,
  //       "Name": "chilkat"
  //     }
  //   ]
  // }

  let creationDate = '';
  let id = '';
  let lastModifiedDate = '';
  let name = '';

  let i = 0;
  const countI = jsonResponse.sizeOfArray('UserPools');
  while (i < countI) {
    jsonResponse.i = i;
    creationDate = jsonResponse.stringOf('UserPools[i].CreationDate');
    id = jsonResponse.stringOf('UserPools[i].Id');
    lastModifiedDate = jsonResponse.stringOf('UserPools[i].LastModifiedDate');
    name = jsonResponse.stringOf('UserPools[i].Name');
    i++;
  }
}