authenticate.js

const passport = require("passport");
var LocalStrategy = require("passport-local").Strategy;
var User = require("./models/users");
var JwtStrategy = require("passport-jwt").Strategy;
var ExtractJwt = require("passport-jwt").ExtractJwt;
var jwt = require("jsonwebtoken");
const dotenv = require("dotenv").config();

passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());

exports.getToken = function (user) {
  return jwt.sign(user, process.env.SECRET_KEY, { expiresIn: "1d" });
};

var opts = {};

opts.jwtFromRequest = ExtractJwt.fromAuthHeaderAsBearerToken();
console.log(process.env.SECRET_KEY);
opts.secretOrKey = process.env.SECRET_KEY;
console.log(opts.secretOrKey);

exports.jwtPassport = passport.use(
  new JwtStrategy(opts, (jwt_payload, done) => {
    console.log("JWT Payload", jwt_payload);
    User.findOne({ _id: jwt_payload._id }, (err, user) => {
      if (err) {
        return done(err, false);
      } else if (user) {
        return done(null, user);
      } else {
        return done(null, false);
      }
    });
  })
);

exports.verifyUser = passport.authenticate("jwt", { session: false });