Change name to get URL from (#1831)

* Add Global Layout for view render

* Add test case for Views Layout

* Update ctx_test.go

* Add App Name function to pass custom app name

* Remove json tag for function

* Change func to string

* Add test for AppName

* Add RedirectToRoute and RedirectBack with fallback if referer in header not found

* replace errors.New with fmt.Errorf

* simplified code

* Add tests for different formats

* Add method to get route location and add benchmarks

* Add ToString function

* Fix error

* rearrange case for fmt.Stringer

* Fix bug for error return

* Lock latest route for app.Name(namee string)

* decreasing timeout for client test with timeout

* remove println and adjust condition to > 0

* Change name to get route url

* Change name to get route url

* Update ctx.go

Co-authored-by: hi019 <65871571+hi019@users.noreply.github.com>

Co-authored-by: RW <rene@gofiber.io>
Co-authored-by: hi019 <65871571+hi019@users.noreply.github.com>

ctx.go

@@ -1079,7 +1079,7 @@ func (c *Ctx) Bind(vars Map) error {
 	return nil
 }
 
-// get URL location from route using parameters
+// getLocationFromRoute get URL location from route using parameters
 func (c *Ctx) getLocationFromRoute(route Route, params Map) (string, error) {
 	buf := bytebufferpool.Get()
 	for _, segment := range route.routeParser.segs {
@@ -1104,6 +1104,11 @@ func (c *Ctx) getLocationFromRoute(route Route, params Map) (string, error) {
 	return location, nil
 }
 
+// GetRouteURL generates URLs to named routes, with parameters. URLs are relative, for example: "/user/1831"
+func (c *Ctx) GetRouteURL(routeName string, params Map) (string, error) {
+	return c.getLocationFromRoute(c.App().GetRoute(routeName), params)
+}
+
 // RedirectToRoute to the Route registered in the app with appropriate parameters
 // If status is not specified, status defaults to 302 Found.
 func (c *Ctx) RedirectToRoute(routeName string, params Map, status ...int) error {

ctx_test.go

@@ -2556,6 +2556,20 @@ func Benchmark_Ctx_Get_Location_From_Route(b *testing.B) {
 	}
 }
 
+// go test -run Test_Ctx_Get_Location_From_Route_name
+func Test_Ctx_Get_Location_From_Route_name(t *testing.T) {
+	app := New()
+	c := app.AcquireCtx(&fasthttp.RequestCtx{})
+	defer app.ReleaseCtx(c)
+	app.Get("/user/:name", func(c *Ctx) error {
+		return c.SendString(c.Params("name"))
+	}).Name("User")
+
+	location, err := c.GetRouteURL("User", Map{"name": "fiber"})
+	utils.AssertEqual(t, nil, err)
+	utils.AssertEqual(t, "/user/fiber", location)
+}
+
 type errorTemplateEngine struct{}
 
 func (t errorTemplateEngine) Render(w io.Writer, name string, bind interface{}, layout ...string) error {