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Gin Web Framework

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Gin is a web framework written in Go. It features a martini-like API with performance that is up to 40 times faster thanks to httprouter. If you need performance and good productivity, you will love Gin.

Gin's key features are:

  • Zero allocation router
  • Speed
  • Middleware support
  • Crash-free
  • JSON validation
  • Route grouping
  • Error management
  • Built-in rendering
  • Extensible

Getting started

Prerequisites

Gin requires Go version 1.21 or above.

Getting Gin

With Go's module support, go [build|run|test] automatically fetches the necessary dependencies when you add the import in your code:

import "github.com/gin-gonic/gin"

Alternatively, use go get:

go get -u github.com/gin-gonic/gin

Running Gin

A basic example:

package main

import (
  "net/http"

  "github.com/gin-gonic/gin"
)

func main() {
  r := gin.Default()
  r.GET("/ping", func(c *gin.Context) {
    c.JSON(http.StatusOK, gin.H{
      "message": "pong",
    })
  })
  r.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
}

To run the code, use the go run command, like:

$ go run example.go

Then visit 0.0.0.0:8080/ping in your browser to see the response!

See more examples

Quick Start

Learn and practice with the Gin Quick Start, which includes API examples and builds tag.

Examples

A number of ready-to-run examples demonstrating various use cases of Gin are available in the Gin examples repository.

Documentation

See the API documentation on godoc.org.

The documentation is also available on gin-gonic.com in several languages:

Articles

Benchmarks

Gin uses a custom version of HttpRouter, see all benchmarks.

Benchmark name (1) (2) (3) (4)
BenchmarkGin_GithubAll 43550 27364 ns/op 0 B/op 0 allocs/op
BenchmarkAce_GithubAll 40543 29670 ns/op 0 B/op 0 allocs/op
BenchmarkAero_GithubAll 57632 20648 ns/op 0 B/op 0 allocs/op
BenchmarkBear_GithubAll 9234 216179 ns/op 86448 B/op 943 allocs/op
BenchmarkBeego_GithubAll 7407 243496 ns/op 71456 B/op 609 allocs/op
BenchmarkBone_GithubAll 420 2922835 ns/op 720160 B/op 8620 allocs/op
BenchmarkChi_GithubAll 7620 238331 ns/op 87696 B/op 609 allocs/op
BenchmarkDenco_GithubAll 18355 64494 ns/op 20224 B/op 167 allocs/op
BenchmarkEcho_GithubAll 31251 38479 ns/op 0 B/op 0 allocs/op
BenchmarkGocraftWeb_GithubAll 4117 300062 ns/op 131656 B/op 1686 allocs/op
BenchmarkGoji_GithubAll 3274 416158 ns/op 56112 B/op 334 allocs/op
BenchmarkGojiv2_GithubAll 1402 870518 ns/op 352720 B/op 4321 allocs/op
BenchmarkGoJsonRest_GithubAll 2976 401507 ns/op 134371 B/op 2737 allocs/op
BenchmarkGoRestful_GithubAll 410 2913158 ns/op 910144 B/op 2938 allocs/op
BenchmarkGorillaMux_GithubAll 346 3384987 ns/op 251650 B/op 1994 allocs/op
BenchmarkGowwwRouter_GithubAll 10000 143025 ns/op 72144 B/op 501 allocs/op
BenchmarkHttpRouter_GithubAll 55938 21360 ns/op 0 B/op 0 allocs/op
BenchmarkHttpTreeMux_GithubAll 10000 153944 ns/op 65856 B/op 671 allocs/op
BenchmarkKocha_GithubAll 10000 106315 ns/op 23304 B/op 843 allocs/op
BenchmarkLARS_GithubAll 47779 25084 ns/op 0 B/op 0 allocs/op
BenchmarkMacaron_GithubAll 3266 371907 ns/op 149409 B/op 1624 allocs/op
BenchmarkMartini_GithubAll 331 3444706 ns/op 226551 B/op 2325 allocs/op
BenchmarkPat_GithubAll 273 4381818 ns/op 1483152 B/op 26963 allocs/op
BenchmarkPossum_GithubAll 10000 164367 ns/op 84448 B/op 609 allocs/op
BenchmarkR2router_GithubAll 10000 160220 ns/op 77328 B/op 979 allocs/op
BenchmarkRivet_GithubAll 14625 82453 ns/op 16272 B/op 167 allocs/op
BenchmarkTango_GithubAll 6255 279611 ns/op 63826 B/op 1618 allocs/op
BenchmarkTigerTonic_GithubAll 2008 687874 ns/op 193856 B/op 4474 allocs/op
BenchmarkTraffic_GithubAll 355 3478508 ns/op 820744 B/op 14114 allocs/op
BenchmarkVulcan_GithubAll 6885 193333 ns/op 19894 B/op 609 allocs/op
  • (1): Total Repetitions achieved in constant time, higher means more confident result
  • (2): Single Repetition Duration (ns/op), lower is better
  • (3): Heap Memory (B/op), lower is better
  • (4): Average Allocations per Repetition (allocs/op), lower is better

Middleware

You can find many useful Gin middlewares at gin-contrib.

Uses

Here are some awesome projects that are using the Gin web framework.

  • gorush: A push notification server.
  • fnproject: A container native, cloud agnostic serverless platform.
  • photoprism: Personal photo management powered by Google TensorFlow.
  • lura: Ultra performant API Gateway with middleware.
  • picfit: An image resizing server.
  • dkron: Distributed, fault tolerant job scheduling system.

Contributing

Gin is the work of hundreds of contributors. We appreciate your help!

Please see CONTRIBUTING.md for details on submitting patches and the contribution workflow.