Redirects

Issuing a HTTP redirect is easy. Both internal and external locations are supported. By locations we mean, paths, subdomains, domains and e.t.c.

From Handler

app.Get("/", func(ctx iris.Context) {
    ctx.Redirect("https://golang.org/dl", iris.StatusMovedPermanently)
})

Issuing a HTTP redirect from POST.

app.Post("/", func(ctx iris.Context) {
    ctx.Redirect("/login", iris.StatusFound)
})

Issuing a local router redirect from a Handler, use Application.ServeHTTPC or Exec() like below.

app.Get("/test", func(ctx iris.Context) {
    r := ctx.Request()
    r.URL.Path = "/test2"
    ctx.Application().ServeHTTPC(ctx)
    // OR
    // ctx.Exec("GET", "/test2")
})
app.Get("/test2", func(ctx iris.Context) {
    ctx.JSON(iris.Map{"hello": "world"})
})

Globally

Use the syntax we all love.

import "github.com/kataras/iris/v12/middleware/rewrite"

func main() {
    app := iris.New()
    // [...routes]
    redirects := rewrite.Load("redirects.yml")
    app.WrapRouter(redirects)
    app.Listen(":80")
}

The "redirects.yml" file looks like that:

RedirectMatch:
  # Redirects /seo/* to /*
  - 301 /seo/(.*) /$1
  # Redirects /docs/v12* to /docs
  - 301 /docs/v12(.*) /docs
  # Redirects /old(.*) to /
  - 301 /old(.*) /
  # Redirects http or https://test.* to http or https://newtest.*
  - 301 ^(http|https)://test.(.*) $1://newtest.$2
  # Handles /*.json or .xml as *?format=json or xml,
  # without redirect. See /users route.
  # When Code is 0 then it does not redirect the request,
  # instead it changes the request URL
  # and leaves a route handle the request.
  - 0 /(.*).(json|xml) /$1?format=$2
# Redirects root domain to www.
# Creation of a www subdomain inside the Application is unnecessary,
# all requests are handled by the root Application itself.
PrimarySubdomain: www

The full code can be found at the rewrite middleware example.