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H. Díaz
Asked: 2020-08-23 06:19:01 +0800 CST 2020-08-23 06:19:01 +0800 CST

How do I implement Passport in angular 2.0 and nodeJs?

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I ask this question, because I have already made some application with authentication with these technologies: MongoDb, Angular, NodeJs and Express. The thing is that I've been researching Passport, but I can't fully implement it in nodeJs, much less do I have an idea of ​​what it will be like to insert it with angular later. So that is my question. How is it implemented? Is there a place where I can get some information, apart from the internet documentations? Thanks in advance

nodejs

1 Answers

  1. Best Answer

    Here is an example of how I have implemented it several times, I hope it will help you, but the documentation on the internet is very good ;)

    ./local.js

    Here I implement local authentication, in a separate file in case you want to use other strategies, export a getStrategy which is the one you use:

    const passportLocal = require("passport-local");

function authenticateLocal(username, password, cb) {
    User.getById(username, (err, rec) => {
        if (err) {
            return cb(err);
        }
        if (rec === null) {
            return cb(null, false, { message: "User doesn't exist" });
        }
        if (!rec.verifyPasswordSync(password)) {
            return cb(null, false, { message: "Incorrect password" });
        }
        cb(null, { username, role: rec.role });
    });
}

function getStrategy() {
    return new passportLocal.Strategy(authenticateLocal);
}

exports.getStrategy = getStrategy;

    passport.js

    Here I load the strategies and export a function that it uses to load passport

    const passport = require("passport");
const local = require("./local");

function serialize(user, cb) {
    cb(null, user.username);
}

function deserialize(username, cb) {
    User.getById(username, (err, user) => {
        if (user) {
            cb(null, user);
        } else {
            cb(null, { username, role: "user" });
        }
    });
}

function configPassport(config) {
    passport.serializeUser(serialize);
    passport.deserializeUser(deserialize);
    passport.use(local.getStrategy());
}

exports.configPassport = configPassport;

    app.js

    This is the main module where you create the express router and add the middlewares to it

    const passport = require("passport");
const myPassport = require("./passport");
const app = require("express")();

app.use(bodyParser.json({ limit: "5mb" }));
app.use(bodyParser.urlencoded({ extended: false, limit: "5mb" }));
app.use(cookieParser());
app.use(expressSession(expressSessionOptions));
app.use(passport.initialize());
app.use(passport.session());

myPassport.configPassport(config);

module.exports = app;
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