NodeJS & ExpressJS Masterclass: Beginner to Pro REST APIs

Learn promise, async/await, and try/catch in JavaScript, with hands-on examples of creating promises, resolving or rejecting based on conditions, and chaining then and catch for dependent operations.

Master routing fundamentals in node js by defining endpoints with get, post, put, patch, and delete, handling requests and responses, and testing with postman on routes like /api/user/login.

learn how to access request variables using query parameters and request bodies across get, post, put, and patch methods, with body-parser and urlencoded options for form data.

Learn to create a new user via post /api/user/signup in a node.js app, validating name, phone, email, type, status, and password, and test with Postman.

Understand what CORS is and why it's needed. Implement CORS in a Node.js app to enable cross-origin requests from front-end apps such as Angular, React, and Ionic.

Learn to create an API to resend verification emails by updating the verification token and time, sending the email via Gmail or SendGrid, and handling responses.

Learn to securely encrypt passwords with bcrypt by generating salt or using salt rounds, hash the plaintext, and verify passwords during sign up and login.

Protect backend APIs by implementing a global auth middleware that verifies JWT tokens in request headers, authorizing users and enabling secure actions like email verification and token resending.

Improve the auth flow by treating the six-digit otp as a string to avoid loss of leading zeros, ensuring reliable email verification, signup, login checks, and token expiry handling.

Learn how to optimize a Node.js API by clarifying routes, implementing email verification tokens, and refining JWT handling with audience and issuer, plus middleware authentication.

Fetch and update a user profile via a token-authenticated gate route, retrieving data by user id. Implement patch routes to update phone and profile, with validation and email verification.

Fix minor signup bugs by making reset password token fields optional during user creation, enforce unique emails with clear errors, and balance front end and back end validation.

Explore how a food delivery app API works, covering user authentication, admin API, cities in mongodb, restaurant catalogs, geospatial queries, menus, addresses, and orders.

Explore the admin-driven workflow for a food delivery API, defining roles, and enabling creation of restaurants, menus, and drivers to power the ordering system.

Build and link restaurant menus by creating admin APIs to fetch active restaurants, assign categories, and add items, while using MongoDB populate() and projection to optimize data.

Learn to build a menu items API endpoint that fetches a restaurant's categories and items by restaurant id, with authentication tests, validation, and testing via Postman.

Learn to build a complete user addresses api in Node.js, implementing create, read, update, delete operations with authentication, address schema, validation, and duplicate checks, plus limited and by-id fetch endpoints.

Explore the module by making the banner clickable, implementing a dot env file for security, and reviewing the attached source code to understand optimization for Node.js APIs.

Implement and configure a dotenv file in a Node.js application to securely manage environment variables, ports, and other config for development and production.

We introduce pagination in this module by applying it to user addresses, user orders, and restaurant lists, with the source code available at the end.

Implement pagination for the user orders list in a NodeJS/MongoDB API, using per-page and current-page controls, skip/limit, and total pages with previous and next navigation, tested via Postman.

Connect your Node.js backend to a local Redis instance by creating a Redis client wrapper, configuring via environment variables, and implementing set, get, and delete operations with proper error handling.

Connect nodejs with a reddish enterprise server using a free cloud setup. Use reddish commander to access credentials, host, and port URLs, and test set and get operations.

Learn to securely log out users by deleting their refresh token from redis, verify refresh tokens with jwt, and use a dedicated logout route and decode refresh token middleware.

Optimize the address controller to gracefully handle no-record scenarios. Implement a no-count check, return an empty array, zero total pages, and null next page, then verify with postman.

Understand how indexing in MongoDB speeds queries, when to apply it, and its space trade-offs, illustrated by restaurant name lookups and find one versus find.