Web Utility for Golang websites.

Webutil is a simple, lightweight utility for Golang websites.

It loads, selects the right mime, and caches static (js, css, image,...), and html files. It also has a place-holder to apply security in order to withhold a file (i.e. a javascript file).

Features

MIME Types

MIME types are configured and the corrected response header is written by default.

HTTP Response Wrapper

WriteResponse

Compression headers are added with each response; just pass the data that is to be displayed on a page to the WriteResponse function:

WriteResponse(data []byte, w http.ResponseWriter, r *http.Request)

HTTPExec

HTTPExec is an http wrapper. You can set timeout, pass headers, and have an option of receiving a log of the call. It returns the entire response for further parsing.

HTTPExec(method HTTPMethod, urlx string, hd http.Header, data []byte, tMillisec uint, logRequest bool) (HTTPResult, error)

Serve Static Files

ServeStaticFile can be setup for processing supporting files like css, js, and image files.

func (h *HTTP) ServeStaticFile(w http.ResponseWriter, r *http.Request)

All needed is assigning the path to the http handler as the following example:

mWebutil := webutil.NewHTTP(mInstallPath, 5*time.Minute)
http.HandleFunc("/assets/", mWebutil.ServeStaticFile)

Process Page Directives

Insert page directives inside html pages.

func (h *HTTP) ProcessPageCommands(b []byte) ([]byte, []error)

Use the LoadFile directive to insert content inside a block; easily reuse pieces of code inside pages without writing separate code. Usage Example:

<div style="border:none">
  {{.$LoadFile:/web/html/my-cool-grid.html}}
</div>

Comments

You can leave comments in any file (.html, .js, .go,..), knowing that they will not reach the client.

{{.COMMENTS <your comments go here> }}

Run the test app

• Start a shell window in sample directory.
• go build -o webutilDemo && ./webutilDemo
• Navigate to http://localhost:8005/mypage.html