Dart

Get a List of Message IDs in GMail User's Mailbox

See more GMail REST API Examples

Demonstrates how to get a list of message IDs in a GMail mailbox. The "userId" can be either the user's email address or the special value "me" to indicate the authenticated user. 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 http = CkHttp();

  http.authToken = 'ACCESS_TOKEN';

  http.accept = 'application/json';

  final resp = CkHttpResponse();
  try {
    http.httpNoBody('GET', 'https://www.googleapis.com/gmail/v1/users/userId/messages', resp);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Response Status Code: ${resp.statusCode}');

  final jsonResponse = CkJsonObject();
  jsonResponse.load(resp.bodyStr);
  jsonResponse.emitCompact = false;
  print(jsonResponse.emit());

  if (resp.statusCode != 200) {
    print('Failed.');
    return;
  }

  // {
  //   "messages": [
  //     users.messages Resource
  //   ],
  //   "nextPageToken": string,
  //   "resultSizeEstimate": unsigned integer
  // }

  var id = '';
  var threadId = '';

  final resultSizeEstimate = jsonResponse.intOf('resultSizeEstimate');
  var i = 0;
  final countI = jsonResponse.sizeOfArray('messages');
  while (i < countI) {
    jsonResponse.i = i;
    id = jsonResponse.stringOf('messages[i].id');
    threadId = jsonResponse.stringOf('messages[i].threadId');
    i++;
  }
}