Learn Node.js: Backend & API

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About this app

Node.js clicks the moment you understand the event loop. Once you see how a single thread handles thousands of requests, callbacks, promises and streams stop feeling like magic. This app helps you learn Node.js that way, explaining how things work and then letting you build real backend projects.

A Complete Node.js Course
Chapters move from the basics and architecture to V8, libuv, modules, the event loop, streams, HTTP servers and security, each with clear explanations, code examples and key points.

Express JS and REST APIs
Learn routing, middleware, route parameters and response methods in Express JS, then apply them to REST APIs that talk to MongoDB and MySQL.

Build Seven Real Projects
Each project is built step by step: a todo REST API, user auth with JWT, REST APIs with MySQL and MongoDB, a Socket.IO chat server, a file upload API and a rate limiter.

1,100 Interview Questions
Quizzes at basic, medium and advanced level cover the event loop, async code, Express, MongoDB, authentication, security and more, each with an explanation.

Mock Interview and Daily Challenge
A mock interview gives you 30 questions in 30 minutes. A daily challenge of five questions keeps practice regular, and a mistakes list brings back what you got wrong.

Practise Code and Revise Fast
Write and run code in the practice area, and use key point cheat sheets for quick revision before an interview. Lessons, quizzes and projects also work offline.

Who It Helps
Beginners starting backend development.
JavaScript developers moving to the server side.
Job seekers preparing for Node.js interviews.

Learn Node.js one chapter and one project at a time, and you will be ready to build APIs and answer interview questions with confidence.
Express and MongoDB tutorial with real projects, quizzes and interview prep
Updated on
Oct 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
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What’s new

📖 Redesigned lessons: clear headings, highlighted code, Key Points first, adjustable text size
✍️ Lessons rewritten in plain English + new offline diagrams
🧠 440 new quiz questions, 5 levels per topic
🎯 Daily Challenge, Roadmap, Revision & Interview Study Planner
📊 Weekly progress chart & activity heatmap
🏆 Pro: topic certificates & shareable cheat sheets
📱 New: More apps (Python, Java, C++, DSA & more)
Content rating
Everyone
In-App Purchases
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App support

Phone number
+918123485246
About the developer
SUMAIYYA B JAHAGIRDAR
learnsimpli19@gmail.com
Ward no : 2 Salpetth, A/P, ILKAL, TQ, HUNGUND, DIST. BAGALKOT ILKAL, Karnataka 587125 India

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