Render Templates
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assetfs Add NameSpace for AssetFS Jul 11, 2017
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LICENSE.txt Rename LICENSE.txt Oct 31, 2016 Update README Oct 31, 2017
render.go Use utils.GOPATH to get GOPATH Nov 2, 2017
render_test.go Compatible with template name with blank space Dec 1, 2017
template.go Compatible with template name with blank space Dec 1, 2017
utils.go Use utils.AppRoot Jul 14, 2017


Render provides handy controls when rendering templates.


Initialize Render

import ""

func main() {
  Render := render.New(&render.Config{
    ViewPaths:     []string{"app/new_view_path"},
    DefaultLayout: "application", // default value is application
    FuncMapMaker:  func(*Render, *http.Request, http.ResponseWriter) template.FuncMap {
      // genereate FuncMap that could be used when render template based on request info

Next, invoke Execute function to render your template...

Render.Execute("index", context, request, writer)

The Execute function accepts 4 parameters:

  1. The template name. In this example Render will look up template index.tmpl from view paths. the default view path is {current_repo_path}/app/views, and you could register more view paths.
  2. The context you can use in the template, it is an interface{}, you could use that in views. for example, if you pass context["CurrentUserName"] = "Memememe" as the context. In the template, you can call {% raw %}{{.CurrentUserName}}{% endraw %} to get the value "Memememe".
  3. http.Request of Go.
  4. http.ResponseWriter of Go.

Understanding yield

yield is a func that could be used in layout views, it will render current specified template. For above example, think yield as a placeholder, and it will replaced with template index.tmpl's content.

<!-- app/views/layout/application.tmpl -->

Specify Layout

The default layout is {current_repo_path}/app/views/layouts/application.tmpl. If you want use another layout like new_layout, you can pass it as a parameter to Layout function.

Render.Layout("new_layout").Execute("index", context, request, writer)

Render will find the layout at {current_repo_path}/app/views/layouts/new_layout.tmpl.

Render with helper functions

Sometimes you may want to have some helper functions in your template. Render supports passing helper functions by Funcs function.

Render.Funcs(funcsMap).Execute("index", obj, request, writer)

The funcsMap is based on html/template.FuncMap. So with

funcMap := template.FuncMap{
  "Greet": func(name string) string { return "Hello " + name },

You can call this in the template

{{Greet "Memememe" }}

The output is Hello Memememe.

Use with Responder

Put the Render inside Responder handle function like this.

func handler(writer http.ResponseWriter, request *http.Request) {
  responder.With("html", func() {
    Render.Execute("demo/index", viewContext, *http.Request, http.ResponseWriter)
  }).With([]string{"json", "xml"}, func() {
    writer.Write([]byte("this is a json or xml request"))

Use with Bindatafs

$ bindatafs --exit-after-compile=false config/views

func main() {
	Render := render.New()

	Render.Execute("index", context, request, writer)


Released under the MIT License.