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1/25/2024
7 min read

Building Scalable APIs with Go

Learn best practices for building high-performance, scalable APIs using Go and modern architecture patterns

Go
API
Backend
Microservices

Building Scalable APIs with Go

Go has become the language of choice for building high-performance APIs and microservices.

Why Go for APIs?

Go provides several advantages:

  • Fast Compilation: Quick build times
  • Concurrency: Built-in goroutines
  • Performance: Near C-level performance
  • Simple Syntax: Easy to learn and maintain

Setting Up Your Project

Create a new Go module:

go mod init myapi
go get github.com/gin-gonic/gin

Building Your First Endpoint

main.go

Middleware

Add authentication middleware:

middleware.go

Database Integration

Connect to PostgreSQL:

db.go

Best Practices

  1. Use Context: Always pass context for cancellation
  2. Error Handling: Return errors, don't panic
  3. Structured Logging: Use structured logging libraries
  4. Testing: Write comprehensive tests

Conclusion

Go is an excellent choice for building scalable APIs with its simplicity and performance.