Configuration Control

Golf comes with a built-in JSON configuration parser. You can create an empty configuration by calling golf.NewConfig(). Moreover, you can read the configuration directly from a JSON file:

main.go

package main

import (
	"github.com/dinever/golf"
	"os"
)

func versionHandler(ctx *golf.Context) {
	appVersion, _ := ctx.App.Config.GetString("APP/VERSION", "unavailable")
	ctx.Send(appVersion)
}

func homeHandler(ctx *golf.Context) {
	apiKey, _ := ctx.App.Config.GetString("API_KEY", "0")
	ctx.Send(apiKey)
}

func main() {
	file, err := os.Open("config.json")
	if err != nil {
		panic(err)
	}
	app := golf.New()
	app.Get("/version", versionHandler)
	app.Get("/", homeHandler)
	app.Config, err = golf.ConfigFromJSON(file)
	app.Run(":9000")
}

config.json

{
  "API_KEY": "e5c9b7101a9ac541615a73e99636ba1c",
  "APP": {
    "VERSION": "0.1.0"
  }
}

You can look up a child node in the JSON map by using slash(/) in the key as the above code did in the versionHandler.

The above code is also available at github.com/dinever/golf/tree/master/examples/config_control.