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location

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This Gin middleware can be used to automatically find and expose the server's hostname and scheme by inspecting information in the incoming http.Request. The alternative to this plugin would be explicitly providing such information to the server as a command line argument or environment variable.

Usage

Start using it

Download and install it:

go get github.com/gin-contrib/location

Import it in your code:

import "github.com/gin-contrib/location"

Default

package main

import (
  "github.com/gin-contrib/location"
  "github.com/gin-gonic/gin"
)

func main() {
  router := gin.Default()

  // configure to automatically detect scheme and host
  // - use http when default scheme cannot be determined
  // - use localhost:8080 when default host cannot be determined
  router.Use(location.Default())

  router.GET("/", func(c *gin.Context) {
    url := location.Get(c)

    // url.Scheme
    // url.Host
    // url.Path
  })

  router.Run()
}

Custom

package main

import (
  "github.com/gin-contrib/location"
  "github.com/gin-gonic/gin"
)

func main() {
  router := gin.Default()

  // configure to automatically detect scheme and host with
  // fallback to https://foo.com/base
  // - use https when default scheme cannot be determined
  // - use foo.com when default host cannot be determined
  // - include /base as the path
  router.Use(location.New(location.Config{
    Scheme: "https",
    Host: "foo.com",
    Base: "/base",
    Headers: location.Headers{Scheme: "X-Forwarded-Proto", Host: "X-Forwarded-For"},
  }))

  router.GET("/", func(c *gin.Context) {
    url := location.Get(c)

    // url.Scheme
    // url.Host
    // url.Path
  })

  router.Run()
}

Contributing

Fork -> Patch -> Push -> Pull Request

License

MIT