util

README

Util

A set of frequently used Go utility functions.

# download library
$: go get github.com/faryon93/util

# place on top of your go file
import "github.com/faryon93/util"

Documentation

Index

• Variables
• func GetRemoteAddr(r *http.Request) string
• func Jsonify(w http.ResponseWriter, v interface{})
• func ParseBody(r *http.Request, v interface{}) error
• func RandomString(n int) string
• func WaitSignal(sig ...os.Signal)

Variables

var (
	ErrInvalidContentType = errors.New("invalid content type")
)

Functions

func GetRemoteAddr

func GetRemoteAddr(r *http.Request) string

GetRemoteAddr returns the remote address of an http request. If an X-Forwarded-For Header is present the headers content is returned. Otherwise the src host of the ip packet is returned.

func Jsonify

func Jsonify(w http.ResponseWriter, v interface{})

Jsonify writes the JSON representation of v to the supplied http.ResposeWriter. If an error occours while marshalling the http response will be an internal server error.

func ParseBody

func ParseBody(r *http.Request, v interface{}) error

ParseBody reads the body of the request and parses it into v.

func RandomString

func RandomString(n int) string

RandomString string returns a random string with the length n. Stolen from https://stackoverflow.com/questions/22892120/how-to-generate-a-random-tring-of-a-fixed-length-in-golang

func WaitSignal

func WaitSignal(sig ...os.Signal)

WaitSignal blocks until one of the given OS signals occoures.