//Replace firebase values with your app api values import firebase from 'firebase';
componentWillMount() { firebase.initializeApp({ apiKey: "yourAPIKey", authDomain: "authDomainNAme", databaseURL: "yourDomainBaseURL", projectId: "yourProjectID", storageBucket: "storageBUcketValue", messagingSenderId: "senderIdValue" }); firebase.auth().signInWithEmailAndPassword(email, password) .then(this.onLoginSuccess) }) }