uber-go/fx

Health v2 · maintenance only

Adoption not part of the score

7645 stars · 349 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Fx is a dependency injection based application framework for Go, developed and battle-tested at Uber. It manages application lifecycles, eliminates global state, and automatically wires the dependency graph of components.

Use cases

• wire dependencies in a Go service without globals
• manage application startup and shutdown lifecycle in Go
• build reusable modules shared across Go microservices
• reduce boilerplate setup code in Go backends
• structure a large Go codebase with loosely-coupled components

When to choose

• you are building Go backend services with complex dependency graphs
• you want to eliminate init() functions and global variables
• your team shares components across multiple Go services
• you want a mature, SemVer-stable DI framework backed by production use at Uber

When to avoid

• you are writing a small script or simple CLI with few dependencies
• you prefer explicit manual wiring over reflection-based injection
• your project is not written in Go

Facets

framework · maturity stable

middleware developer-tools configuration-management developer-tools backend web-development go windows cross-platform dependency-injection application-framework lifecycle-management microservices uber linux macos

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