⚙️ A comprehensive API template demonstrating the github.com/samber/do dependency injection library.

A comprehensive API template project demonstrating the full power of the github.com/samber/do dependency injection library. This project implements a complete REST API with PostgreSQL integration, showcasing type-safe dependency injection, modular architecture, and real-world web application concerns.

Perfect as a starting point for new Go web projects or as a learning resource for understanding dependency injection patterns in API applications.

See also:

• do-template-worker
• do-template-cli

Clone the repo and install dependencies:

git clone --depth 1 --branch main https://github.com/samber/do-template-api.git your-project-name
cd your-project-name
docker compose up -d
make deps
make deps-tools

• Type-safe dependency injection - Service registration and resolution using samber/do
• Modular architecture - Clean separation of concerns with dependency tree visualization
• REST API framework - Built with Gin for robust HTTP web services
• Configuration management - Environment-based configuration with dependency injection
• PostgreSQL integration - Complete database setup with connection pooling and migrations
• Repository pattern - Data access layer with injected dependencies
• Service layer - Business logic with proper dependency management
• Application lifecycle - Health checks and graceful shutdown handling
• Comprehensive error handling - Structured logging and error management
• Production-ready - Ready to fork and customize for your next API project
• Extensive documentation - Inline comments explaining every do library feature

# install deps
make deps
make deps-tools
# compile
make build
# build with hot-reload
make watch-run
# test with hot-reload
make watch-test

• GoDoc: https://godoc.org/github.com/samber/do/v2
• Documentation

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Copyright © 2025 Samuel Berthe.

This project is MIT licensed.