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web.go

web.go is the simplest way to write web applications in the Go programming language. It's ideal for writing simple, performant backend web services.

Overview

web.go should be familiar to people who've developed websites with higher-level web frameworks like sinatra or web.py. It is designed to be a lightweight web framework that doesn't impose any scaffolding on the user. Some features include:

  • Routing to url handlers based on regular expressions
  • Secure cookies
  • Support for fastcgi and scgi
  • Web applications are compiled to native code. This means very fast execution and page render speed
  • Efficiently serving static files

Installation

Make sure you have the a working Go environment. See the install instructions. web.go targets the Go release branch.

To install web.go, simply run:

go get github.com/hoisie/web

To compile it from source:

git clone git://github.com/hoisie/web.git
cd web && go build

Example

package main
    
import (
    "github.com/hoisie/web"
)
    
func hello(val string) string { return "hello " + val } 
    
func main() {
    web.Get("/(.*)", hello)
    web.Run("0.0.0.0:9999")
}

To run the application, put the code in a file called hello.go and run:

go run hello.go

You can point your browser to http://localhost:9999/world .

Getting parameters

Route handlers may contain a pointer to web.Context as their first parameter. This variable serves many purposes -- it contains information about the request, and it provides methods to control the http connection. For instance, to iterate over the web parameters, either from the URL of a GET request, or the form data of a POST request, you can access ctx.Params, which is a map[string]string:

package main

import (
    "github.com/hoisie/web"
)
    
func hello(ctx *web.Context, val string) { 
    for k,v := range ctx.Params {
		println(k, v)
	}
}   
    
func main() {
    web.Get("/(.*)", hello)
    web.Run("0.0.0.0:9999")
}

In this example, if you visit http://localhost:9999/?a=1&b=2, you'll see the following printed out in the terminal:

a 1
b 2

Documentation

API docs are hosted at https://hoisie.github.io/web/

If you use web.go, I'd greatly appreciate a quick message about what you're building with it. This will help me get a sense of usage patterns, and helps me focus development efforts on features that people will actually use.

About

web.go was written by Michael Hoisie