Building a Weather API CLI with TypeScript — async/await, fetch, and Response Types

Introduction This is my sixth article as a Java engineer learning TypeScript from scratch. In my previous article, I built a Quiz CLI and learned about enum, tuple types, and mocking an entire module with jest.mock(). This time, I built a Weather API CLI and focused on: Calling an external API asynchronously with async/await and fetch Describing an API response with type definitions (type to model the JSON shape) HTTP error handling with response.ok Extracting object key types with keyof...