Certificate Authentication

Introduction

• Node.js internals: Node.js runtime, V8 engine, libuv library.
• Node.js module system.
• Processes, Threads and the Thread Pool.
• Events and Event-Driven Architecture.
• Advantages and disadvantages of using Node.js compared to other technologies.

Architecture

• Architectural patterns in Node.js.
• Using TypeScript to write Node.js applications.
• Frameworks in Node.js: Express.js, Koa.js, Nest.js, etc.
• Using design patterns with examples: factory, builder, decorator, strategy, etc.
• Middlewares.

Node.js APIs

• RESTful API design principles.
• API versioning.
• Best practices for WEB APIs in Node.js.

Asynchronous programming

• Event loop.
• Callbacks, promises, async/await.
• Streams and buffers for handling large amounts of data.
• How to use Node.js Workers for computationally intensive workload.

Performance

• Performance optimization techniques (data caching, load balancing, etc).
• Using debugging techniques to resolve performance issues and memory leaks.

Security

• Authentication, secure communications, secure coding practices (preventing web application vulnerabilities like SQL injection)
• Security testing with tools like Burp, OWASP ZAP.

Scalability

• Building scalable applications with Node.js (horizontally duplication, building microservices).
• Microservices in Node.js: decomposing a monolithic application into microservices, inter-service communication, etc.
• Using message brokers like Kafka, RabbitMQ, ActiveMQ to handle messaging between different components of the system.
• Developing real-time collaborative (and scalable) applications with WebSockets and Redis. Publish/subscribe pattern.

Database

• Advanced database techniques: indexing, improving performance in queries (ex: pagination) using ORMs (like Sequelize): seeds, migrations, complex joins, n+1 problem.

Testing

• Testing RESTful APIs in Node.js.

Monitoring

• Profiling techniques.
• Monitoring / metrics.

Deployment

• Continuous integration and deployment.