Why was the service on TypeScript and why was it migrated to Go?

The service was originally written in TypeScript, probably due to rapid development, ease of working with types, and the widespread use of JavaScript/TypeScript in web development. TypeScript allows for faster prototyping and easy integration with the frontend.

Migration to Go usually occurs for reasons of performance and scalability. Go is compiled into native code, has high execution speed, efficient memory management, and built-in support for concurrency (goroutines). This is especially important for high-load services where response time and handling a large number of requests are critical. Additionally, Go is often easier to maintain and deploy in production, which reduces operational costs.