dex/vendor/github.com/gorilla/handlers/README.md
2016-03-09 13:04:05 -08:00

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gorilla/handlers
================
[![GoDoc](https://godoc.org/github.com/gorilla/handlers?status.svg)](https://godoc.org/github.com/gorilla/handlers) [![Build Status](https://travis-ci.org/gorilla/handlers.svg?branch=master)](https://travis-ci.org/gorilla/handlers)
Package handlers is a collection of handlers (aka "HTTP middleware") for use
with Go's `net/http` package (or any framework supporting `http.Handler`), including:
* `LoggingHandler` for logging HTTP requests in the Apache [Common Log
Format](http://httpd.apache.org/docs/2.2/logs.html#common).
* `CombinedLoggingHandler` for logging HTTP requests in the Apache [Combined Log
Format](http://httpd.apache.org/docs/2.2/logs.html#combined) commonly used by
both Apache and nginx.
* `CompressHandler` for gzipping responses.
* `ContentTypeHandler` for validating requests against a list of accepted
content types.
* `MethodHandler` for matching HTTP methods against handlers in a
`map[string]http.Handler`
* `ProxyHeaders` for populating `r.RemoteAddr` and `r.URL.Scheme` based on the
`X-Forwarded-For`, `X-Real-IP`, `X-Forwarded-Proto` and RFC7239 `Forwarded`
headers when running a Go server behind a HTTP reverse proxy.
* `CanonicalHost` for re-directing to the preferred host when handling multiple
domains (i.e. multiple CNAME aliases).
Other handlers are documented [on the Gorilla
website](http://www.gorillatoolkit.org/pkg/handlers).
## Example
A simple example using `handlers.LoggingHandler` and `handlers.CompressHandler`:
```go
import (
"net/http"
"github.com/gorilla/handlers"
)
func main() {
r := http.NewServeMux()
// Only log requests to our admin dashboard to stdout
r.Handle("/admin", handlers.LoggingHandler(os.Stdout, http.HandlerFunc(ShowAdminDashboard)))
r.HandleFunc("/", ShowIndex)
// Wrap our server with our gzip handler to gzip compress all responses.
http.ListenAndServe(":8000", handlers.CompressHandler(r))
}
```
## License
BSD licensed. See the included LICENSE file for details.