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Sign in with Firebase-Admin using node.js – Facebook api

I am trying to sign in with node.js with firebase-admin, but when I look up there API, they only have sections on update, delete and create.

They do have sections on how to get the user by email but if i want to sign in a user should I not be verifying also by their password as well. I feel like I am incorrectly reading how to use firebase-admin. My best guess is that I should be using straight Firebase and not the new firebase-admin.

Edit:

I only want to sign in the user by email (i.e. not by google sign in or facebook login), if that is possible.

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3

Answers


  1. 0

    The Firebase Admin Node.js SDK (firebase-admin on npm) is for administrative actions like fetching user data or changing a user’s email without their existing password. If you just want to sign in as a user, you should use the Firebase client Node.js SDK (firebase on npm).

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  2. 0

    Here is the answer in another post:
    How to authenticate an user in firebase-admin in nodejs?.

    Copy and Paste, just in case:

    Install firebase module: npm install firebase –save

    const firebase = require("firebase");
const config = {
    apiKey: "",
    authDomain: "",
    databaseURL: "",
    projectId: "",
    storageBucket: "",
    messagingSenderId: ""
};
firebase.initializeApp(config);

    exports.login = functions.https.onRequest((req, rsp)=>{
    const email = req.body.email;
    const password = req.body.password;
    const key = req.body.key;
    const _key = '_my_key_';
    let token = '';
    if(key === _key){           
    firebase.auth().signInWithEmailAndPassword(email,password).then((user)=>{
//The promise sends me a user object, now I get the token, and refresh it by sending true (obviously another promise)            
user.getIdToken(true).then((token)=>{
                rsp.writeHead(200, {"Content-Type": "application/json"});
                rsp.end(JSON.stringify({token:token}));
            }).catch((err)=>{
                rsp.writeHead(500, {"Content-Type": "application/json"});
                rsp.end(JSON.stringify({error:err}));
            });
        }).catch((err)=>{
            rsp.writeHead(500, {"Content-Type": "application/json"});
            rsp.end(JSON.stringify({error:err}));
        });
    } else {
        rsp.writeHead(500, {"Content-Type": "application/json"});
        rsp.end(JSON.stringify('error - no key'));
    }
});
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  3. 0

    If you are still looking for sign in without using client libraries, here is the approach.

    Fire a request to the following url’s based on the required action

    Signup : https://www.googleapis.com/identitytoolkit/v3/relyingparty/signupNewUser

    Signin : https://www.googleapis.com/identitytoolkit/v3/relyingparty/verifyPassword

    This allows to create/signin users by firing a http request to the above urls. You get the required tokens and these are compatible with firebase. I assume firebase internally uses these url’s in the client libraries.

    Hope its helpful!

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