Set timeout for HTTPClient get() request

Question

This method submits a simple HTTP request and calls a success or error callback just fine:

  void _getSimpleReply( String command, callback, errorCallback )          


        

Answer 1

There are two different ways to configure this behavior in Dart

Set a per request timeout

You can set a timeout on any Future using the Future.timeout method. This will short-circuit after the given duration has elapsed by throwing a TimeoutException.

try {
  final request = await client.get(...);
  final response = await request.close()
    .timeout(const Duration(seconds: 2));
  // rest of the code
  ...
} on TimeoutException catch (_) {
  // A timeout occurred.
} on SocketException catch (_) {
  // Other exception
}

Set a timeout on HttpClient

You can also set a timeout on the HttpClient itself using HttpClient.connectionTimeout. This will apply to all requests made by the same client, after the timeout was set. When a request exceeds this timeout, a SocketException is thrown.

final client = new HttpClient();
client.connectionTimeout = const Duration(seconds: 5);