Mastering API Gateway in Node.js: Secure & Optimize Your API

Explore Node.js api gateway frameworks, starting with express gateway for beginners, then compare Kong and Tyke as production-ready options, including features and pricing.

Learn how to implement request routing with Express Gateway and why routing matters in API gateway frameworks, then explore rate limiting, authentication, caching, monitoring, and logging.

Install express gateway globally, then create a new gateway project using the gateway create command, choosing a name and getting started as dependencies install.

Explore express gateway project by inspecting server.js, package.json, and config folder, learn about system and gateway level configurations and models, and run gateway server on port 8080 (admin on 9876).

Set up an api gateway to forward traffic from a mobile app to product, payment, and order microservices, configuring host, port, and api url across node express servers.

Configure an API gateway to route requests by defining endpoints and proxies, compose pipelines of policies, and forward traffic to product, order, and payment services.

Implement rate limiting in the API gateway to prevent overload by restricting requests per hostname, IP, or user within a two-minute window, returning too many requests errors.

Learn to implement monitoring and logging in the api gateway with a Morgan-based logging policy in Express gateway, capturing the request method and original URL for orders testing.

Learn to secure your api gateway by building an auth service with signup and login, issuing json web tokens, and protecting payments and orders routes with MongoDB as the database.

Create a signup route in a Node.js auth service by hashing passwords with bcrypt, saving the user with async/await, and returning the user email for secure account creation.

connect to mongodb and implement signup by hashing passwords with bcrypt salt, establishing mongoose connection to auth db, and persisting user email and password to the users collection.

Learn to implement error handling in a Node.js app using try-catch and console.error. Return a 500 JSON with error message and add a global error handler, then apply prettier formatting.

Implement the login route by validating email and password, verifying the user with an encrypted password, and issuing a JSON web token to secure the API.

Install and import joy, define a signup schema with email validation and a six-character minimum for password, then validate the request body and return 400 on errors.

Build the login feature by finding a user by email with mongoose, validate the password with compareSync, and issue a JWT with a secret key that expires in one day.

Protect api routes by implementing a jwt-based authentication middleware that validates the token from the authorization header, extracts the user id, and returns 401 on failure.

Define and test auth routes in the API gateway, connect the auth service at port 4003, and verify signup, login, and token-based access to a protected profile route.

Secure microservices by applying an API gateway with a JWT policy to protect the orders service; login to obtain a token and verify it on requests.