@labshare/services-auth

Services Auth

@labshare/services-auth is an Express.js middleware plugin that integrates with Express.js APIs to provide API Resource Scope authorization with RS256 JWT validation.

Install

npm i @labshare/services-auth --save

Options

• authUrl (String) - The base URL for a remote LabShare Auth service. Example: https://a.labshare.org/_api. Required if secretProvider is not specified.
• tenant (String) - The LabShare Auth Tenant ID the API service is registered to. Required if secretProvider is not specified.
• audience (String) - An optional API service identifier used for JWT audience validation. This is the identifier of an API service (OAuth Resource Server) registered to the LabShare Auth system.
• issuer (String) - Optional value for validating the JWT issuer (the iss claim).
• secretProvider (Function) - An optional, custom function for obtaining the signing certificate for RS256. The signature is (req, header: {alg: string}, payload, cb: (error: Error, signingCert: string) => void): void.

Usage

LabShare Services

This example demonstrates scope-based authorization for an HTTP API module using @labshare/services to load the route definition. With the configuration below, only JWTs containing an audience of https://my.api.identifier/resource and a read:users scope would be allowed to access the API route. Additionally, the JWT would be validated against the JSON Web Key Set of the specified LabShare Auth Tenant.

// api/users.js

module.exports = {
    routes: [
        {
            path: '/users',
            httpMethod: 'GET',
            middleware: getUsers,
            scope: [
                'read:users'
            ]
        }
    ]
}

// index.js

const {Services} = require('@labshare/services');
const servicesAuth = require('@labshare/services-auth');

const services = new Services(/* options */);

// Adds scope-based route authentication and authorization to LabShare Service routes and sockets
services.config(servicesAuth({
    authUrl: 'https://ls.auth.io/_api',
    audience: 'https://my.api.identifier/resource',
    issuer: 'LabShare Auth',
    tenant: 'my-tenant'
}));

services.start();

Express.js

The @labshare/services-auth module exports generic Express.js middleware for route authentication.

// index.js

const app = require('express')();
const servicesAuth = require('@labshare/services-auth');

// Adds route authentication to the Express.js routes
app.use('/protected/*', servicesAuth.express({
    authUrl: 'https://ls.auth.io/_api',
    audience: 'https://my.api.identifier/resource',
    issuer: 'LabShare Auth',
    tenant: 'my-tenant'
}));

app.listen(3000);

Development

1. Install Node.js >= 8.11.2
2. npm i

Tests

npm test