This is ionic based messenger with firebase.
- npm install
- ionic serve
- google-service.json file and upload at root directory of the app
- Go to the root directory of the app run following command to install firebase package in your ionic app
- npm install firebase
const config = {
apiKey: "your_api_key",
authDomain: "project_id.firebaseapp.com",
databaseURL: "https://project_id.firebaseio.com",
projectId: "project_id",
storageBucket: "project_id.appspot.com",
messagingSenderId: "sender_id"
};