Go-Json-Rest

A quick and easy way to setup a RESTful JSON API

Go-Json-Rest is a thin layer on top of net/http that helps building RESTful JSON APIs easily. It provides fast URL routing using a Trie based implementation, and helpers to deal with JSON requests and responses. It is not a high-level REST framework that transparently maps HTTP requests to procedure calls, on the opposite, you constantly have access to the underlying net/http objects.

Features

• Implemented as a net/http Handler. This standard interface allows combinations with other Handlers.
• Fast URL routing. It implements the classic route description syntax using a fast and scalable trie data structure.
• Test package to help writing tests for the API.
• Optional /.status endpoint for easy monitoring.
• Examples

Install

This package is "go-gettable", just do:

go get github.com/ant0ine/go-json-rest

Vendoring

The recommended way of using this library in your project is to use the "vendoring" method, where this library code is copied in your repository at a specific revision. This page is a good summary of package management in Go.

Example

package main
import (
        "github.com/ant0ine/go-json-rest"
        "net/http"
)
type User struct {
        Id   string
        Name string
}
func GetUser(w *rest.ResponseWriter, req *rest.Request) {
        user := User{
                Id:   req.PathParam("id"),
                Name: "Antoine",
        }
        w.WriteJson(&user)
}
func main() {
        handler := rest.ResourceHandler{}
        handler.SetRoutes(
                rest.Route{"GET", "/users/:id", GetUser},
        )
        http.ListenAndServe(":8080", &handler)
}

More Examples

(See the dedicated examples repository: https://github.com/ant0ine/go-json-rest-examples)

• Countries Demo very simple GET, POST, DELETE operations
• Users Demo the mapping to object methods
• SPDY Demo SPDY using github.com/shykes/spdy-go
• GAE Demo go-json-rest on Google App Engine
• GORM Demo basic CRUD operations using MySQL and GORM
• Streaming Demo Line Delimited JSON stream
• CORS Demo CORS support for all endpoints
• Basic Auth Demo an Authentication Basic impl for all endpoints

Documentation

• Online Documentation (godoc.org)
• [(Blog Post) Introducing Go-Json-Rest] (http://blog.ant0ine.com/typepad/2013/04/introducing-go-json-rest.html)
• [(Blog Post) Better URL Routing ?] (http://blog.ant0ine.com/typepad/2013/02/better-url-routing-golang-1.html)

Options

Things to enable in production:

• Gzip compression (default: disabled)
• Custom Logger (default: Go default)

Things to enable in development:

• Json indentation (default: enabled)
• Relaxed ContentType (default: disabled)
• Error stack trace in the response body (default: disabled)

The Status Endpoint

Inspired by memcached "stats", this optional feature can be enabled to help monitoring the service.

GET /.status returns something like:

{
  "Pid": 21732,
  "UpTime": "1m15.926272s",
  "UpTimeSec": 75.926272,
  "Time": "2013-03-04 08:00:27.152986 +0000 UTC",
  "TimeUnix": 1362384027,
  "StatusCodeCount": {
    "200": 53,
    "404": 11
  },
  "TotalCount": 64,
  "TotalResponseTime": "16.777ms",
  "TotalResponseTimeSec": 0.016777,
  "AverageResponseTime": "262.14us",
  "AverageResponseTimeSec": 0.00026214
}

Thanks

• Franck Cuny
• Yann Kerhervé
• Ask Bjørn Hansen

Copyright (c) 2013-2014 Antoine Imbert

MIT License