rest

package module
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Published: Jul 23, 2018 License: MIT Imports: 12 Imported by: 0

README

REST helpers and middleware Build Status Go Report Card Coverage Status

Install and update

go get -u github.com/go-pkgz/rest

Middlewares

AppInfo middleware

Adds info to every response header:

  • App-Name - application name
  • App-Version - application version
  • Org - organization
  • M-Host - host name from instance-level $MHOST env

Ping-Pong middleware

Responds with pong on GET /ping. Also responds to anything with /ping suffix, like /v2/ping

example for both:

> http GET https://remark42.radio-t.com/ping

HTTP/1.1 200 OK
Date: Sun, 15 Jul 2018 19:40:31 GMT
Content-Type: text/plain
Content-Length: 4
Connection: keep-alive
App-Name: remark42
App-Version: master-ed92a0b-20180630-15:59:56
Org: Umputun

pong

Logger middleware

Logs all info about request, including user, method, status code, response size, url, elapsed time, request body (optional). Can be customized by passing flags - LogNone, LogAll, LogUser and LogBody. Flags can be combined (provided multiple times)

Recoverer middleware

Recoverer is a middleware that recovers from panics, logs the panic (and a backtrace), and returns a HTTP 500 (Internal Server Error) status if possible.

Helpers

  • rest.JSON - map alias, just for convenience type JSON map[string]interface{}
  • rest.RenderJSONFromBytes - renders json response from []byte
  • rest.RenderJSONWithHTML - renders json response with html tags and forced charset=utf-8
  • rest.SendErrorJSON - makes {error: blah, details: blah} json body and responds with given error code. Also adds context to logged message

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AppInfo

func AppInfo(app string, org string, version string) func(http.Handler) http.Handler

AppInfo adds custom app-info to the response header

func Ping

func Ping(next http.Handler) http.Handler

Ping middleware response with pong to /ping. Stops chain if ping request detected

func Recoverer

func Recoverer(next http.Handler) http.Handler

Recoverer is a middleware that recovers from panics, logs the panic and returns a HTTP 500 status if possible.

func RenderJSONFromBytes

func RenderJSONFromBytes(w http.ResponseWriter, r *http.Request, data []byte) error

RenderJSONFromBytes sends binary data as json

func RenderJSONWithHTML

func RenderJSONWithHTML(w http.ResponseWriter, r *http.Request, v interface{}) error

RenderJSONWithHTML allows html tags and forces charset=utf-8

func SendErrorJSON

func SendErrorJSON(w http.ResponseWriter, r *http.Request, code int, err error, details string)

SendErrorJSON makes {error: blah, details: blah} json body and responds with error code

Types

type JSON

type JSON map[string]interface{}

JSON is a map alias, just for convenience

Directories

Path Synopsis

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