NodeJS Masterclass (Express, MongoDB, OpenAI)

Explore how Node.js creates a server-side JavaScript runtime, enabling access to the server file system and backend capabilities built on the Google V8 JavaScript engine.

Create your first Node.js web server by using the built-in http module in index.js, listening on localhost:8000, and sending 'hello from the server' responses to client requests.

Develop a dynamic node.js server by inspecting request url and returning data for routes like /cars and /fruits, preparing for express-based scalable routing.

Discover how Express enables scalable Node.js servers with routing, middleware, and streamlined request handling, and learn to use npm to install Express and manage packages.

initialize npm creates package.json with project metadata, dependencies, and scripts. installing express populates node_modules with express and its dependencies, while package-lock.json tracks versions for consistent sharing.

Learn to build an express server by creating app.js, importing express, defining routes with app.get, and comparing with index.js to achieve dynamic routing and organized code.

Learn to automate server restarts in a Node.js project by using node mon, setting an npm start script to run it, and enabling automatic reloads when app.js changes.

Learn to read files in Node.js with the built-in file system module, using fs.readFile to load data.txt with utf-8 encoding and return its contents in the server response.

Learn how to read and write files with the Node.js fs module, using write file and append file to preserve existing data in data.txt while handling routes and errors.

Explore the Node.js fs module capabilities briefly and learn why this course prioritizes MongoDB for storage, guiding you to focus on database operations over rarely used file system features.

Explore how an application programming interface (api) handles client requests and server responses by processing relevant data from the database, using a restaurant analogy to illustrate client-server interactions.

Understand rest api concepts, its design principles, and standard methods like get, post, put, patch, and delete that enable consistent client-server communication. Learn how this approach speeds development using Postman.

Learn how APIs work, focusing on REST methods and how to test them. Use the Movies Database dummy API in Node.js as a practical code base for learning API testing.

Install dependencies for the movie API (Express and Norman), run npm install and npm start, then test the endpoints, including get all movies, via localhost:4000/api.

Install postman to test and debug your NodeJS API, create a movies collection, run the server with npm start, and test get all movies endpoint at localhost 4000 api/movies.

Test and build movie APIs with postman, including get movies and get single movie by id. Send json payloads for creating movies, providing movie name, info, and a 1–10 rating.

Master postman environments to test the movie API, including get all, get one, add, patch edit, and delete endpoints. Manage base URLs and json payloads for future development.

Set up a new movie's API project with Express and MongoDB, initialize npm, install nodemon, create App.js, and implement a POST /api/movies endpoint storing data in MongoDB.

Connect your NodeJS app to MongoDB Atlas using Compass for data viewing; learn to set up a free Atlas cluster, create users, obtain a connection string, and view data.

Learn to connect a Node.js app to MongoDB using mongoose by installing, requiring, and handling connection success or failure; secure the URI with environment variables.

Learn to securely store sensitive data using environment variables with a .env file, set up dotenv, and access the MongoDB connection string via process.env.mongo_connection.

Learn how mongoose models and schemas structure and validate data using a school and movie database analogy, and distinguish models as collections from schemas as field definitions in mongoose.

Build a movies.model.js using mongoose to define a movie name, info, and rating schema, export the model, and connect to a movies db via .env for use in app.js.

learn to handle add movie requests in a nodejs express route by enabling express.json, reading the request body, and destructuring movie_name, info, and rating.

Validate client requests in express by enforcing required fields and returning 400 on failure and 200 on success, with messages like movie name must be provided and rating between 0 and 100.

Use a single try catch block with throw statements to gracefully handle errors in Express, minimizing code and returning clear failed responses when inputs are missing or invalid.

Explore synchronous and asynchronous code execution in JavaScript, learn about promises, and implement async and await to manage non-blocking database and API operations.

Learn to create your first database record with async/await in Node.js using Mongoose, a movies model, and Postman to add and verify data in MongoDB.

Explore mongoose schema validations and rules, learn how fields not in the schema are ignored, how changes affect only new data, and how to define required fields with custom messages.

Learn to retrieve data from a database by building get all movies and get single movie routes with Mongoose, using find and find one for dynamic id parameters.

Explore update operations in Mongoose by building an edit movie route that updates a document by id, with validators, error handling, and fields like name, info, rating, and description.

Learn to delete a movie from MongoDB with Express routes, using request params, deleteOne, and findOne checks to ensure the record exists.

Learn to integrate OpenAI with a Node.js app by installing the OpenAI package, creating a developer account, and generating an API key to prompt for movie suggestions from your database.

Install the OpenAI npm package, create a movie recommendations route in a Node.js app, resolve conflicts with a unique OpenAI path, and test with Postman.

Set up OpenAI in a NodeJS project by creating a developer account, securing an API key in env, and testing prompts with the $5 free credit.

Learn to prompt OpenAI for movie recommendations using a movies model in a NodeJS app, including building prompts, token control, and robust error handling.

Learn to streamline error handling in Node.js apps using express-async-errors, remove repetitive try-catch blocks, and centralize errors with a dedicated express error handler for the movies API.

Explore expense tracker pro by building with MongoDB, models and schemas, user registration and login, Json web tokens authentication, email flows in Node.js, forgot and reset password, and live deployment.

Build the expense tracker pro blueprint with user registration, login, a protected dashboard with public and protected routes, income and expenses updating the balance, and encryption and jwt authentication.

Set up the expense tracker pro project by scaffolding a Node.js app with Express and Mongoose, creating app.js, configuring port 8000, and adding a centralized error handler.

Connect to a MongoDB database using a connection string, configure dotenv, and initialize a users model with a schema for full name, email, password, and balance in expense tracker db.

Master modular code organization in Node.js by separating user and transaction functionality into modules, using Express routers, controllers, and routes to keep app.js clean and scalable.

Register users efficiently by structuring a modular Node.js route with mongoose models, validating email, password, and name, and returning clear errors for duplicates or invalid input.

Learn to secure user data by hashing passwords with bcrypt in a Node.js environment, install and configure bcrypt, and store hashed passwords in MongoDB to prevent plain-text exposure.