npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

middy-middleware-jwt-auth

v6.1.0

Published

A middy JSON web token authorization middleware inspired by express-jwt.

Downloads

3,498

Readme

middy-middleware-jwt-auth

npm version downloads open issues FOSSA Status npm bundle size debug build status codecov Libraries.io dependency status for latest release semantic release CLA Assistant

A middy JSON web token authorization middleware inspired by express-jwt.

Installation

Download node at nodejs.org and install it, if you haven't already.

npm install middy-middleware-jwt-auth --save

Documentation

There is additional documentation.

Usage

import createHttpError from "http-errors";
import middy from "@middy/core";
import httpErrorHandler from "@middy/http-error-handler";
import httpHeaderNormalizer from "@middy/http-header-normalizer";
import JWTAuthMiddleware, {
  EncryptionAlgorithms,
  IAuthorizedEvent,
} from "middy-middleware-jwt-auth";

// Optionally define the token payload you expect to receive
interface ITokenPayload {
  permissions: string[];
}

// Optionally define a type guard for the token payload
function isTokenPayload(token: any): token is ITokenPayload {
  return (
    token != null &&
    Array.isArray(token.permissions) &&
    token.permissions.every((permission: any) => typeof permission === "string")
  );
}

// This is your AWS handler
const helloWorld = async (event: IAuthorizedEvent<ITokenPayload>) => {
  // The middleware adds auth information if a valid token was added
  // If no auth was found and credentialsRequired is set to true, a 401 will be thrown. If auth exists you
  // have to check that it has the expected form.
  if (event.auth!.payload.permissions.indexOf("helloWorld") === -1) {
    throw createHttpError(
      403,
      `User not authorized for helloWorld, only found permissions [${event.auth!.permissions.join(", ")}]`,
      {
        type: "NotAuthorized",
      },
    );
  }

  return {
    body: JSON.stringify({
      data: `Hello world! Here's your token: ${event.auth!.token}`,
    }),
    statusCode: 200,
  };
};

// Let's "middyfy" our handler, then we will be able to attach middlewares to it
export const handler = middy(helloWorld)
  .use(httpHeaderNormalizer()) // Make sure authorization header is saved in lower case
  .use(httpErrorHandler()) // This middleware is needed do handle the errors thrown by the JWTAuthMiddleware
  .use(
    JWTAuthMiddleware({
      /** Algorithm to verify JSON web token signature */
      algorithm: EncryptionAlgorithms.HS256,
      /** An optional boolean that enables making authorization mandatory */
      credentialsRequired: true,
      /** An optional function that checks whether the token payload is formatted correctly */
      isPayload: isTokenPayload,
      /** A string or buffer containing either the secret for HMAC algorithms, or the PEM encoded public key for RSA and ECDSA */
      secretOrPublicKey: "secret",
      /**
       * An optional function used to search for a token e. g. in a query string. By default, and as a fall back,
       * event.headers.authorization and event.headers.Authorization are used.
       */
      tokenSource: (event: any) => event.queryStringParameters.token,
    }),
  );