loopback-jwt

loopback-jwt is a node express middleware plugin to map Json Web tokens and Loopback users.

// load loopback-jwt module
var auth = require('loopback-jwt')(app,{
    secretKey: '<secret>',
    model: '<model>'
});

// apply to a path
app.use('/<path>',auth.authenticated,function(req,res,next) {
    debug("has valid token",req.user);
    next();
});

// catch error
app.use(function (err, req, res, next) {
    if (err.name === 'UnauthorizedError') {
        res.status(401).send('invalid token, or no token supplied');
    } else {
        res.status(401).send(err);
    }
});

Getting Started

loopback-jwt is a simple middleware to map jwt with loopback. It is assumed that a jwt has been passed in the request

Install Connect

$ npm install loopback-jwt --save

loading loopback-jwt

var auth = require('loopback-jwt')(app,{options});

options allows any options that are permitted to be passed to the loopback-jwt middleware

options:

• secretKey the key need to verify the jwt (required)
• model the loopback model used for User maintenance (defaults to 'User')
• identifier the jwt claim to identify the user (defaults to 'email')
• password the default password to use when creating loopback users (defaults to uuid.v4())

Using loopback-jwt

the authenticated method of loopback-jwt is added to any path that you wish to protect. If the client has not supplied a valid, signed jwt then an error will be raised

// apply to a path
app.use('/<path>',auth.authenticated,function(req,res,next) {
    debug("has valid token",req.user);
    next();
});

// catch error
app.use(function (err, req, res, next) {
    if (err.name === 'UnauthorizedError') {
        res.status(401).send('invalid token, or no token supplied');
    } else {
        res.status(401).send(err);
    }
});

Alter user data before creating a new user

Register a beforeCreate callback in options and modify/enrich the passed in user object with profile data contained in the jwt token:

var auth = require('loopback-jwt')(app,{
    secretKey: '<secret>',
    model: '<model>',
    beforeCreate: function(newUser, data) {
      newUser.name = data.name;
    }
});

Contributors

https://github.com/whoGloo/loopback-jwt/graphs/contributors

License

MIT