express-authentication-endpoint.js

var express = require( 'express' );
var bodyParser = require( 'body-parser' );
var googleAuth = require( './googleAuth.js' );
var app = express();

var jwt = require('./jwt.js')

app.use( bodyParser.json() );
app.use( bodyParser.urlencoded( { extended: false } ) );

app.post( '/auth/token', ( req, res ) => {
    try {
        var login = req.body;
        googleAuth.getGoogleUser( login.code )
            .then( response => {
                var content = {
                    token: jwt.createToken( response ),
                    user: response
                }
                return content
            } )
            .then( credentials => {
                res.setHeader( 'Content-Type', 'application/json' );
                res.end( JSON.stringify( credentials ) );
            } )
            .catch( e => {
                console.log( e )
                throw new Error( e )
            } )


    } catch ( error ) {
        res.sendStatus( 500 ).end( JSON.stringify( { error: "Internal server error" } ) )
        return console.error( error )
    }
} );