Lecture 2: Overview of What Will Be Learned

REST API Development: Build, Test, Troubleshoot

Before we start building APIs, it is important to understand what you will learn throughout this course. REST API development is not just about writing code — it involves understanding HTTP, structuring endpoints, handling data correctly, testing APIs, and troubleshooting issues efficiently.

Course Objective

The goal of this course is to help you build a complete understanding of REST APIs, from the fundamentals to practical development and testing. By the end of the course, you will be able to create your own REST API, connect it to applications, and diagnose common problems that occur in real-world systems.

Key Topics Covered

• Understanding the fundamentals of HTTP and how web communication works
• Learning the principles behind REST architecture
• Creating a REST API project from scratch
• Designing models and endpoints
• Working with JSON data structures
• Implementing GET, POST, PUT, and DELETE operations
• Testing APIs using Postman
• Troubleshooting and debugging API responses
• Applying best practices for efficient API design

Hands-On Development

This course emphasizes practical learning. Instead of only discussing theory, you will work with real examples and build a functioning REST API step by step. You will learn how each component interacts within the API architecture.

For example, an endpoint might look like this:

This request would return structured JSON data that other systems, mobile apps, or web applications can consume.

Tools You Will Use

• Visual Studio for building the REST API
• Postman for testing API endpoints
• SQL Server for storing and retrieving data
• JSON for data exchange between systems

Skills You Will Gain

• Building REST APIs used by modern applications
• Testing and validating API responses
• Debugging and troubleshooting API issues
• Designing APIs that are scalable and maintainable

These skills are widely used in backend development, cloud services, mobile application development, and system integrations.