Dart

Amazon Cognito - List Users

See more Amazon Cognito Examples

Lists the users in the Amazon Cognito user pool. Dart

import 'package:chilkat/chilkat.dart';

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

  final rest = CkRest();

  final authAws = CkAuthAws();
  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/
  final bTls = true;
  final port = 443;
  final bAutoReconnect = true;
  // Use the same region as specified above.
  try {
    rest.connect('cognito-idp.us-west-2.amazonaws.com', port, bTls, bAutoReconnect);
  } on ChilkatException catch (e) {
    print('ConnectFailReason: ${rest.connectFailReason}');
    print(e.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.

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

  // {
  //     "UserPoolId": "us-west-2_yt6WzO3SA"
  // }
  // 

  final json = CkJsonObject();
  json.updateString('UserPoolId', 'us-west-2_yt6WzO3SA');

  rest.addHeader('Content-Type', 'application/x-amz-json-1.0');
  rest.addHeader('X-Amz-Target', 'AWSCognitoIdentityProviderService.ListUsers');
  rest.addHeader('Accept-Encoding', 'identity');

  final sbRequestBody = CkStringBuilder();
  json.emitSb(sbRequestBody);
  final sbResponseBody = CkStringBuilder();
  try {
    rest.fullRequestSb('POST', '/', sbRequestBody, sbResponseBody);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final respStatusCode = rest.responseStatusCode;
  print('response status code = $respStatusCode');
  if (respStatusCode != 200) {
    print('Response Status Code = $respStatusCode');
    print('Response Header:');
    print(rest.responseHeader);
    print('Response Body:');
    print(sbResponseBody.getAsString());
    return;
  }

  final jsonResponse = CkJsonObject();
  jsonResponse.loadSb(sbResponseBody);

  jsonResponse.emitCompact = false;
  print(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

  // {
  //   "Users": [
  //     {
  //       "Attributes": [
  //         {
  //           "Name": "sub",
  //           "Value": "1874cf28-00d3-4ac1-a24a-68dcb0cecf09"
  //         },
  //         {
  //           "Name": "email_verified",
  //           "Value": "true"
  //         },
  //         {
  //           "Name": "phone_number_verified",
  //           "Value": "true"
  //         },
  //         {
  //           "Name": "phone_number",
  //           "Value": "+16302581871"
  //         },
  //         {
  //           "Name": "email",
  //           "Value": "admin@chilkatsoft.com"
  //         }
  //       ],
  //       "Enabled": true,
  //       "UserCreateDate": 1.636404386657E9,
  //       "UserLastModifiedDate": 1.636404386657E9,
  //       "UserStatus": "FORCE_CHANGE_PASSWORD",
  //       "Username": "matt"
  //     },
  //     {
  // 	. . .
  //     }
  //   ]
  // }

  var userCreateDate = '';
  var userLastModifiedDate = '';
  var userStatus = '';
  var username = '';
  var j = 0;
  var countJ = 0;
  var name = '';
  var value = '';

  var i = 0;
  final countI = jsonResponse.sizeOfArray('Users');
  while (i < countI) {
    jsonResponse.i = i;
    jsonResponse.boolOf('Users[i].Enabled');
    userCreateDate = jsonResponse.stringOf('Users[i].UserCreateDate');
    userLastModifiedDate = jsonResponse.stringOf('Users[i].UserLastModifiedDate');
    userStatus = jsonResponse.stringOf('Users[i].UserStatus');
    username = jsonResponse.stringOf('Users[i].Username');
    j = 0;
    countJ = jsonResponse.sizeOfArray('Users[i].Attributes');
    while (j < countJ) {
      jsonResponse.j = j;
      name = jsonResponse.stringOf('Users[i].Attributes[j].Name');
      value = jsonResponse.stringOf('Users[i].Attributes[j].Value');
      j++;
    }

    i++;
  }
}