firebase_performance 0.10.0+8 firebase_performance: ^0.10.0+8 copied to clipboard
Flutter plugin for Google Performance Monitoring for Firebase, an app measurement solution that monitors traces and HTTP/S network requests on Android and iOS.
// Copyright 2021 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_performance/firebase_performance.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart';
import 'firebase_options.dart';
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);
runApp(MyApp());
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MetricHttpClient extends BaseClient {
_MetricHttpClient(this._inner);
final Client _inner;
@override
Future<StreamedResponse> send(BaseRequest request) async {
// Custom network monitoring is not supported for web.
// https://firebase.google.com/docs/perf-mon/custom-network-traces?platform=android
final HttpMetric metric = FirebasePerformance.instance
.newHttpMetric(request.url.toString(), HttpMethod.Get);
metric.requestPayloadSize = request.contentLength;
await metric.start();
StreamedResponse response;
try {
response = await _inner.send(request);
print(
'Called ${request.url} with custom monitoring, response code: ${response.statusCode}',
);
metric.responseContentType = 'text/html';
metric.httpResponseCode = response.statusCode;
metric.responsePayloadSize = response.contentLength;
metric.putAttribute('score', '15');
metric.putAttribute('to_be_removed', 'should_not_be_logged');
} finally {
metric.removeAttribute('to_be_removed');
await metric.stop();
}
final attributes = metric.getAttributes();
print('Http metric attributes: $attributes.');
String? score = metric.getAttribute('score');
print('Http metric score attribute value: $score');
return response;
}
}
class _MyAppState extends State<MyApp> {
FirebasePerformance _performance = FirebasePerformance.instance;
bool _isPerformanceCollectionEnabled = false;
String _performanceCollectionMessage =
'Unknown status of performance collection.';
bool _trace1HasRan = false;
bool _trace2HasRan = false;
bool _customHttpMetricHasRan = false;
@override
void initState() {
super.initState();
_togglePerformanceCollection();
}
Future<void> _togglePerformanceCollection() async {
// No-op for web.
await _performance
.setPerformanceCollectionEnabled(!_isPerformanceCollectionEnabled);
// Always true for web.
final bool isEnabled = await _performance.isPerformanceCollectionEnabled();
setState(() {
_isPerformanceCollectionEnabled = isEnabled;
_performanceCollectionMessage = _isPerformanceCollectionEnabled
? 'Performance collection is enabled.'
: 'Performance collection is disabled.';
});
}
Future<void> _testTrace1() async {
setState(() {
_trace1HasRan = false;
});
final Trace trace = _performance.newTrace('test_trace_3');
await trace.start();
trace.putAttribute('favorite_color', 'blue');
trace.putAttribute('to_be_removed', 'should_not_be_logged');
trace.incrementMetric('sum', 200);
trace.incrementMetric('total', 342);
trace.removeAttribute('to_be_removed');
await trace.stop();
final sum = trace.getMetric('sum');
print('test_trace_1 sum value: $sum');
final attributes = trace.getAttributes();
print('test_trace_1 attributes: $attributes');
final favoriteColor = trace.getAttribute('favorite_color');
print('test_trace_1 favorite_color: $favoriteColor');
setState(() {
_trace1HasRan = true;
});
}
Future<void> _testTrace2() async {
setState(() {
_trace2HasRan = false;
});
final Trace trace = FirebasePerformance.instance.newTrace('test_trace_2');
await trace.start();
trace.setMetric('sum', 333);
trace.setMetric('sum_2', 895);
await trace.stop();
final sum2 = trace.getMetric('sum');
print('test_trace_2 sum value: $sum2');
setState(() {
_trace2HasRan = true;
});
}
Future<void> _testCustomHttpMetric() async {
setState(() {
_customHttpMetricHasRan = false;
});
final _MetricHttpClient metricHttpClient = _MetricHttpClient(Client());
final Request request = Request(
'SEND',
Uri.parse('https://www.bbc.co.uk'),
);
unawaited(metricHttpClient.send(request));
setState(() {
_customHttpMetricHasRan = true;
});
}
Future<void> _testAutomaticHttpMetric() async {
Response response = await get(Uri.parse('https://www.facebook.com'));
print('Called facebook, response code: ${response.statusCode}');
}
@override
Widget build(BuildContext context) {
const textStyle = TextStyle(color: Colors.lightGreenAccent, fontSize: 25);
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Firebase Performance Example'),
),
body: Center(
child: Column(
children: <Widget>[
Text(_performanceCollectionMessage),
ElevatedButton(
onPressed: _togglePerformanceCollection,
child: const Text('Toggle Data Collection'),
),
ElevatedButton(
onPressed: _testTrace1,
child: const Text('Run Trace One'),
),
Text(
_trace1HasRan ? 'Trace Ran!' : '',
style: textStyle,
),
ElevatedButton(
onPressed: _testTrace2,
child: const Text('Run Trace Two'),
),
Text(
_trace2HasRan ? 'Trace Ran!' : '',
style: textStyle,
),
ElevatedButton(
onPressed: _testCustomHttpMetric,
child: const Text('Run Custom HttpMetric'),
),
Text(
_customHttpMetricHasRan ? 'Custom HttpMetric Ran!' : '',
style: textStyle,
),
ElevatedButton(
onPressed: _testAutomaticHttpMetric,
child: const Text('Run Automatic HttpMetric'),
),
],
),
),
),
);
}
}