Implement react native firebase crashlytics on android

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This tutorial is part of React Native Firebase crashlytics Series.

Today, we implement react native firebase crashlytics on android.

Many Folks, stuck on firebase crashlytics setup then please read and follow all steps carefully…

What is Firebase Crashlytics

Firebase Crashlytics helps you track, prioritize, and fix stability issues that erode app quality, in realtime. Spend less time triaging and troubleshooting crashes and more time building app features that delight users.

— Firebase Crashlytics

Setup Firebase Project

Go To Firebase console and create a new project

https://console.firebase.google.com/

follow the image when you want to see the steps of creating a Firebase project.

• Click on Create A Project button to firebase journey

• Write your project name, accept term & condtion and click on continue

• Click on continue button

• choose your google account & Click on continue button

• firebase project ready to use

Configure Android with Firebase

Below steps explain, connect your firebase account to react native application.

1. Click on android icon on firebase dashboard for setup application

   

2. Write your app name like on below image with nick native and click on next button

   

3. Download google-services.json file and put on your — projectname/android/app — folder.

   

4. Open your android level build.gradle file and add below code

   path - projectname/android/build.gradle

   Copy 
   1// projectname/android/build.gradle
   2
   3buildscript {
   4    ...
   5    repositories {
   6        google()    // add a line when not available
   7        ...
   8    }
   9    dependencies {
   10        ...
   11        classpath 'com.google.gms:google-services:4.3.4' // add line
   12        ...
   13    }
   14}
   15
   16allprojects {
   17    repositories {
   18        ...
   19        google()    // add a line when not available
   20        ...
   21    }
   22}

5. Open your app level build.gradle file and add below code

   path - projectname/android/app/build.gradle

   Copy 
   1// projectname/android/app/build.gradle
   2
   3apply plugin: "com.android.application"
   4apply plugin: 'com.google.gms.google-services' // add on second line below com.android.application
   5
   6...
   7
   8dependencies {
   9    ...
   10    implementation platform('com.google.firebase:firebase-bom:26.1.1') // add line
   11    implementation 'com.google.firebase:firebase-analytics' // add line
   12    ...
   13}
   14
   15...

Configure Android with Firebase Crashlytics

1. install react native firebase app and crashlytics module using below command

   — for yarn users

   Copy 
   1# Install & setup the app module
   2yarn add @react-native-firebase/app
   3
   4# Install the Crashlytics module
   5yarn add @react-native-firebase/crashlytics

   — for npm users

   Copy 
   1# Install & setup the app module
   2npm install @react-native-firebase/app
   3
   4# Install the Crashlytics module
   5npm install @react-native-firebase/crashlytics

2. link your firebase packages

   Copy 
   1# link @react-native-firebase/app
   2npx react-native link @react-native-firebase/app
   3
   4# link @react-native-firebase/crashlytics
   5npx react-native link @react-native-firebase/crashlytics

   Manual Linking

3. firebase crashlytics additional steps

   — changes on projectname/android/build.gradle

   Copy 
   1// projectname/android/build.gradle
   2
   3buildscript {
   4    ...
   5    dependencies {
   6        ...
   7        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.2.0'
   8        ...
   9    }
   10}

   — changes projectname/android/app/build.gradle

   below code add on third line below com.google.gms.google-services

   Copy 
   1apply plugin: 'com.google.firebase.crashlytics' // add on third line below com.google.gms.google-services
   2...

Enable debug crash logs

when you want to test crashes on your debug mode. create firebase.json file on root level to project.

Copy 
1// <project-root>/firebase.json
2{
3  "react-native": {
4    "crashlytics_debug_enabled": true
5  }
6}

Crash

Example to test crash using crashlytics

Copy 
1import React, { useEffect } from 'react';
2import crashlytics from '@react-native-firebase/crashlytics';
3
4export default class crashlytics extends React.Component {
5
6    constructor(props) {
7        super(props);
8
9    }
10
11    componentDidMount() {
12        crashlytics().log('crash on componentDidMount.');
13        crashlytics().crash()
14    }
15}

Error log

Example to test error log using crashlytics

Copy 
1import React, { useEffect } from 'react';
2import crashlytics from '@react-native-firebase/crashlytics';
3
4export default class crashlytics extends React.Component {
5
6    constructor(props) {
7        super(props);
8
9    }
10
11    componentDidMount() {
12        crashlytics().log('Error on componentDidMount');
13        crashlytics().recordError(error);
14    }
15}

Attributes

There are various methods to set attributes for the crash report, in order to provide analytics for crashes and help you review them.

Copy 
1import React, { useEffect } from 'react';
2import crashlytics from '@react-native-firebase/crashlytics';
3
4export default class crashlytics extends React.Component {
5
6    constructor(props) {
7        super(props);
8
9    }
10
11    async reportError() {
12        crashlytics().log('Track errors.');
13        await Promise.all([
14            crashlytics().setAttribute('screenName', String('crashlytics')),
15            crashlytics().setAttributes({
16                fumctionName: 'reportError',
17                errorCode: 'ER1309',
18            }),
19        ]);
20
21        crashlytics().recordError(error);
22
23    }
24}

After following my own react native firebase crashlytics tutorial i got Execution failed for task ':react-native-firebase_crashlytics:generateDebugRFile' error.

Here, you will get solution How to solve react native firebase crashlytics generateDebugRFile failed issue?