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uptrace/bunrouter · source
Snapshot 0 · 2026-11-04T12:47:26Z · Go · MIT
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a80af82909778cf0930b03c7242e7d72f1a5e5f96578c51704f9527084dc5143GitHub description at capture
Golang HTTP router
README at capture
# Fast and flexible HTTP router for Go
[](https://github.com/uptrace/bunrouter/actions)
[](https://pkg.go.dev/github.com/uptrace/bunrouter)
[](https://bunrouter.uptrace.dev/)
[](https://discord.gg/rWtp5Aj)
> BunRouter is brought to you by :star: [**uptrace/uptrace**](https://github.com/uptrace/uptrace).
> Uptrace is an open-source APM tool that supports distributed tracing, metrics, and logs. You can
> use it to monitor applications and set up automatic alerts to receive notifications via email,
> Slack, Telegram, and others. Star it as well!
**TLDR** BunRouter is as fast as httprouter, but supports middlewares, routing rules priority, and
error handling.
BunRouter is an extremely fast HTTP router for Go with unique combination of features:
- [Middlewares](https://bunrouter.uptrace.dev/guide/golang-http-middlewares.html) allow to extract
common operations from HTTP handlers into reusable functions.
- [Error handling](https://bunrouter.uptrace.dev/guide/golang-http-error-handling.html) allows to
further reduce the size of HTTP handlers by handling errors in middlewares.
- [Routes priority](https://bunrouter.uptrace.dev/guide/golang-router.html#routes-priority) enables
meaningful matching priority for routing rules: first static nodes, then named nodes, lastly
wildcard nodes.
- net/http compatible API which means using minimal API without constructing huge wrappers that try
to do everything: from serving static files to XML generation (for example, `gin.Context` or
`echo.Context`).
| Router | Middlewares | Error handling | Routes priority | net/http API |
| --------------- | ------------------ | ------------------ | ------------------ | ------------------ |
| BunRouter | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
| [httprouter][1] | :x: | :x: | :x: | :heavy_check_mark: |
| [Chi][2] | :heavy_check_mark: | :x: | :heavy_check_mark: | :heavy_check_mark: |
| [Echo][3] | :heavy_check_mark: | :heavy_check_mark: | :x: | :x: |
| [Gin][4] | :heavy_check_mark: | :heavy_check_mark: | :x: | :x: |
[1]: https://github.com/julienschmidt/httprouter
[2]: https://github.com/go-chi/chi
[3]: https://github.com/labstack/echo
[4]: https://github.com/go-gin/gin
Learn:
- [Documentation](https://bunrouter.uptrace.dev/)
- [Reference](https://pkg.go.dev/github.com/uptrace/bunrouter)
Examples:
- [Basic example](/example/basic/)
- [http.HandlerFunc example](/example/basic-compat/)
- [httprouter.Handle example](/example/basic-verbose/)
- [CORS example](/example/cors/)
- [Basic auth example](/example/basicauth/)
Projects using BunRouter:
- [Distributed tracing tool](https://github.com/uptrace/uptrace)
- [input-output-hk/cicero](https://github.com/input-output-hk/cicero)
- [RealWorld example application](https://github.com/go-bun/bun-realworld-app)
Benchmarks:
- [web-frameworks-benchmark](https://web-frameworks-benchmark.netlify.app/result?l=go)
- [go-http-routing-benchmark](https://github.com/go-bun/go-http-routing-benchmark)
<details>
<summary>Benchmark results</summary>
```
BenchmarkGin_Param 16019718 74.16 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_Param 12560001 95.04 ns/op 32 B/op 1 allocs/op
BenchmarkBunrouter_Param 50015306 23.81 ns/op 0 B/op 0 allocs/op
BenchmarkGin_Param5 8997234 131.5 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_Param5 4809441 261.3 ns/op 160 B/op 1 allocs/op
BenchmarkBunrouter_Param5 10789635 114.0 ns/op 0 B/op 0 allocs/op
BenchmarkGin_Param20 3953041 302.4 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_Param20 1661373 743.3 ns/op 640 B/op 1 allocs/op
BenchmarkBunrouter_Param20 2462354 482.8 ns/op 0 B/op 0 allocs/op
BenchmarkGin_ParamWrite 9258986 128.0 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_ParamWrite 9908178 123.0 ns/op 32 B/op 1 allocs/op
BenchmarkBunrouter_ParamWrite 15511226 70.62 ns/op 0 B/op 0 allocs/op
BenchmarkGin_GithubStatic 12781513 94.17 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_GithubStatic 30077443 37.36 ns/op 0 B/op 0 allocs/op
BenchmarkBunrouter_GithubStatic 37160334 32.41 ns/op 0 B/op 0 allocs/op
BenchmarkGin_GithubParam 6971791 169.2 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_GithubParam 5464755 217.4 ns/op 96 B/op 1 allocs/op
BenchmarkBunrouter_GithubParam 12047902 101.2 ns/op 0 B/op 0 allocs/op
BenchmarkGin_GithubAll 32758 37382 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_GithubAll 27324 43932 ns/op 13792 B/op 167 allocs/op
BenchmarkBunrouter_GithubAll 57910 20914 ns/op 0 B/op 0 allocs/op
BenchmarkGin_GPlusStatic 17788194 69.13 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_GPlusStatic 60191341 19.84 ns/op 0 B/op 0 allocs/op
BenchmarkBunrouter_GPlusStatic 87114368 14.06 ns/op 0 B/op 0 allocs/op
BenchmarkGin_GPlusParam 10075399 119.5 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_GPlusParam 8272046 149.2 ns/op 64 B/op 1 allocs/op
BenchmarkBunrouter_GPlusParam 37359979 32.43 ns/op 0 B/op 0 allocs/op
BenchmarkGin_GPlus2Params 7375279 162.9 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_GPlus2Params 6538942 186.7 ns/op 64 B/op 1 allocs/op
BenchmarkBunrouter_GPlus2Params 19681939 61.51 ns/op 0 B/op 0 allocs/op
BenchmarkGin_GPlusAll 647716 1752 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_GPlusAll 590356 2085 ns/op 640 B/op 11 allocs/op
BenchmarkBunrouter_GPlusAll 1685287 712.8 ns/op 0 B/op 0 allocs/op
BenchmarkGin_ParseStatic 14566458 76.58 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_ParseStatic 52994076 21.02 ns/op 0 B/op 0 allocs/op
BenchmarkBunrouter_ParseStatic 50583933 23.83 ns/op 0 B/op 0 allocs/op
BenchmarkGin_ParseParam 13443874 90.66 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_ParseParam 8825664 135.6 ns/op 64 B/op 1 allocs/op
BenchmarkBunrouter_ParseParam 38058278 31.33 ns/op 0 B/op 0 allocs/op
BenchmarkGin_Parse2Params 10179813 118.1 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_Parse2Params 7801735 152.9 ns/op 64 B/op 1 allocs/op
BenchmarkBunrouter_Parse2Params 23704574 50.78 ns/op 0 B/op 0 allocs/op
BenchmarkGin_ParseAll 394884 3073 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_ParseAll 410238 3011 ns/op 640 B/op 16 allocs/op
BenchmarkBunrouter_ParseAll 810908 1487 ns/op 0 B/op 0 allocs/op
BenchmarkGin_StaticAll 50658 23699 ns/op 0 B/op 0 allocs/op
BenchmarkHttpRouter_StaticAll 105313 11518 ns/op 0 B/op 0 allocs/op
BenchmarkBunrouter_StaticAll 99674 12188 ns/op 0 B/op 0 allocs/op
```
</details>
## Quickstart
Install:
```shell
go get github.com/uptrace/bunrouter
```
Run the [example](/example/basic/):
```go
package main
import (
"html/template"
"log"
"net/http"
"github.com/uptrace/bunrouter"
"github.com/uptrace/bunrouter/extra/reqlog"
)
func main() {
router := bunrouter.New(
bunrouter.Use(reqlog.NewMiddleware()),
)
router.GET("/", indexHandler)
router.WithGroup("/api", func(g *bunrouter.Group) {
g.GET("/users/:id", debugHandler)
g.GET("/users/current", debugHandler)
g.GET("/users/*path", debugHandler)
})
log.Println("listening on http://localhost:9999")
log.Println(http.ListenAndServe(":9999", router))
}
func indexHandler(w http.ResponseWriter, req bunrouter.Request) error {
return indexTemplate().Execute(w, nil)
}
func debugHandler(w http.ResponseWriter, req bunrouter.Request) error {
return bunrouter.JSON(w, bunrouter.H{
"route": req.Route(),
"params": req.Params().Map(),
})
}
var indexTmpl = `
<html>
<h1>Welcome</h1>
<ul>
<li><a href="/api/users/123">/api/users/123</a></li>
<li><a href="/api/users/current">/api/users/current</a></li>
<li><a href="/api/users/foo/bar">/api/users/foo/bar</a></li>
</ul>
</html>
`
func indexTemplate() *template.Template {
return template.Must(template.New("index").Parse(indexTmpl))
}
```
See the [Golang Router documentation](https://bunrouter.uptrace.dev/) for details.
## See also
- [Golang ORM](https://bun.uptrace.dev/)
- [Golang msgpack](https://msgpack.uptrace.dev/)
- [Golang message task queue](https://github.com/vmihailenco/taskq)
- [Distributed tracing tools ](https://get.uptrace.dev/compare/distributed-tracing-tools.html)