Explore the top 20 essential NestJS interview questions and answers for backend developers. Learn about modules, dependency injection, microservices, and other key features of the NestJS framework to ace your next interview. Perfect for developers preparing for NestJS and Node.js backend roles. NestJS is rapidly becoming one of the most popular frameworks for building scalable,…
Learn how to handle file uploads and storage with NestJS in this comprehensive guide. From using Multer for local storage to integrating cloud storage solutions like AWS S3, this tutorial covers everything you need to know to manage file uploads securely and efficiently in your NestJS applications. Perfect for developers looking to implement file upload…
Learn how to manage database migrations in NestJS using TypeORM and Sequelize . Understand the process of setting up migrations, running them, and handling database schema changes in your NestJS projects. Plus, get interview questions and answers for backend developer roles. When you’re working on a project with a database, things can get complicated as…
“Learn how to implement JWT Authentication and Authorization in NestJS. This guide explains the basics of JWT, its role in securing web applications, and how to set it up in NestJS with practical examples. Ideal for developers looking to secure their APIs using JWT.” Imagine you have a magical key that lets you enter your…
Learn about Unit Testing and End-to-End (E2E) Testing in NestJS using Jest. This comprehensive guide covers how to set up Jest, write unit and E2E tests, and prepare for NestJS-related interview questions. Improve your NestJS testing skills with practical examples and best practices. Imagine you built a toy and you want to make sure it…
“Learn how to integrate Swagger into your NestJS project for clear and interactive API documentation. This step-by-step guide covers Swagger setup, API decorators, best practices, and provides interview questions and answers for backend developers.” Imagine you are a chef in a restaurant, and you want to make sure your assistant knows exactly how to make…
“Learn how to integrate NestJS with Sequelize ORM and PostgreSQL step-by-step. Simplify database operations, create models, and build robust APIs with this beginner-friendly guide. Perfect for developers working with TypeScript and backend frameworks.” Introduction: Making Apps Talk to Databases Imagine you have a big toy box (your database), and you need a friendly robot (NestJS)…
Learn the essentials of error handling and logging in NestJS applications. Discover how to manage exceptions, implement custom logging, and build robust, scalable backend systems with NestJS. Perfect for developers aiming to master NestJS best practices! Imagine you’re running a lemonade stand, and suddenly, a customer says their lemonade tastes funny. How would you fix…
Unlock the potential of building high-performance GraphQL APIs with NestJS in this easy-to-follow guide. Learn best practices, step-by-step instructions, and prepare for interviews with real-world GraphQL and NestJS questions. Start creating flexible, efficient APIs for your next web project today! Imagine you’re at a restaurant, and you want to order some food. Instead of the…
Learn how to implement Microservices Architecture with NestJS in this detailed guide. Discover the benefits of microservices, how to set up NestJS for microservices, and best practices for building scalable, reliable applications. Plus, get interview questions and company examples! Imagine you have a huge toy factory that makes thousands of toys every day. Instead of…
