Learn TypeScript and Build Backend APIs with Express and TypeORM

JavaScript is incredibly flexible, but as applications grow, catching bugs at runtime becomes a major bottleneck. TypeScript solves this by bringing type safety and robust developer tooling to your codebase without sacrificing development speed. In this text-based course, you will transition from writing standard JavaScript to designing highly reliable, type-safe applications. You will first grasp the core theory of the TypeScript compiler and type inference, and then apply these concepts to construct a structured backend REST API. What you'll learn: - Understand core TypeScript syntax, compiler configurations, and strict-mode settings. - Master advanced type features including interfaces, generics, union types, and utility types. - Configure a modern development environment using Node.js with TypeScript support. - Build a structured REST API using Express with proper type definitions for requests and responses. - Integrate TypeORM to interact with databases safely using strongly-typed models. - Apply modern best practices for error handling and validation in type-safe backend environments. The course starts with essential TypeScript terminology, basic type annotations, and compiler settings before guiding you step-by-step through building a database-backed REST API. Through written explanations and practical code snippets, you will gain hands-on experience structuring real-world backend code. This course is designed for developers who know basic JavaScript and want to transition to TypeScript. No prior TypeScript or backend experience is required. Start reading today to write cleaner, more predictable backend code with confidence.