Choosing between Axios and Fetch is just the beginning when building an API client.Problems arise as projects grow, APIs change, and errors become common without proper handling.Creating a type-safe API client in TypeScript ensures better productivity and easier maintenance.Defining types and interfaces upfront helps in aligning API responses and improving error handling.Building a base API client class in TypeScript with Axios simplifies handling headers, error interceptors, and timeouts.Organizing API calls into services enhances code readability and maintainability.Utilizing a factory pattern to create the API client instance streamlines the usage across components.Runtime validation and auto-generation techniques like Zod schemas and OpenAPI tools ensure type safety and efficiency.Handling loading states with AbortController prevents duplicate requests and improves user experience.Choosing the right approach based on project size and complexity is crucial for efficient API development.