mirror of https://github.com/grpc/grpc-dart.git
71 lines
2.1 KiB
Dart
71 lines
2.1 KiB
Dart
// Copyright (c) 2024, the gRPC project authors. Please see the AUTHORS file
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// for details. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import 'dart:async';
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import 'package:web/web.dart';
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import 'src/generated/echo.pbgrpc.dart';
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class EchoApp {
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final EchoServiceClient _service;
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EchoApp(this._service);
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Future<void> echo(String message) async {
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_addLeftMessage(message);
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try {
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final response = await _service.echo(EchoRequest()..message = message);
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_addRightMessage(response.message);
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} catch (error) {
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_addRightMessage(error.toString());
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}
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}
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void repeatEcho(String message, int count) {
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_addLeftMessage(message);
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final request = ServerStreamingEchoRequest()
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..message = message
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..messageCount = count
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..messageInterval = 500;
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_service.serverStreamingEcho(request).listen((response) {
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_addRightMessage(response.message);
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}, onError: (error) {
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_addRightMessage(error.toString());
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}, onDone: () => print('Closed connection to server.'));
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}
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void _addLeftMessage(String message) {
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_addMessage(message, 'label-primary pull-left');
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}
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void _addRightMessage(String message) {
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_addMessage(message, 'label-default pull-right');
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}
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void _addMessage(String message, String cssClass) {
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final span = HTMLSpanElement()
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..classList.add('label')
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..text = message;
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for (final classItem in cssClass.split(' ')) {
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span.classList.add(classItem);
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}
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document.querySelector('#first')!.after(HTMLDivElement()
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..classList.add('row')
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..append(HTMLHeadingElement.h2()..append(span)));
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}
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}
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