# README

Echo OAuth 2.0 Server

Using Echo framework implementation OAuth 2.0 services

Quick Start

Download and install

$ go get github.com/dasjott/oauth2-echo-server

Create file `server.go`

package main

import (
	"net/http"

	echoserver "github.com/dasjott/oauth2-echo-server"
	"github.com/labstack/echo/v4"
	"github.com/go-oauth2/oauth2/v4/manage"
	"github.com/go-oauth2/oauth2/v4/models"
	"github.com/go-oauth2/oauth2/v4/server"
	"github.com/go-oauth2/oauth2/v4/store"
)

func main() {
	manager := manage.NewDefaultManager()

	// token store
	manager.MustTokenStorage(store.NewFileTokenStore("data.db"))

	// client store
	clientStore := store.NewClientStore()
	clientStore.Set("000000", &models.Client{
		ID:     "000000",
		Secret: "999999",
		Domain: "http://localhost",
	})
	manager.MapClientStorage(clientStore)

	// Initialize the oauth2 service
	echoserver.InitServer(manager)
	echoserver.SetAllowGetAccessRequest(true)
	echoserver.SetClientInfoHandler(server.ClientFormHandler)

	e := echo.New()

	auth := e.Group("/oauth2")
	{
		auth.GET("/token", echoserver.HandleTokenRequest)
	}

	api := e.Group("/api")
	{
		api.Use(echoserver.TokenHandler())
		api.GET("/test", func(c echo.Context) error {
			ti := c.Get(echoserver.DefaultConfig.TokenKey)
			if ti != "" {
				return c.JSON(http.StatusOK, ti)
			}
			return echo.NewHTTPError(http.StatusNotFound, "token not found")
		})
	}

	e.Logger.Fatal(e.Start(":9096"))
}

Build and run

$ go build server.go
$ ./server

Open in your web browser

The token information

http://localhost:9096/oauth2/token?grant_type=client_credentials&client_id=000000&client_secret=999999&scope=read

{
    "access_token": "AJPNSQO2PCITABYX0RFLWG",
    "expires_in": 7200,
    "scope": "read",
    "token_type": "Bearer"
}

The authentication token

http://localhost:9096/api/test?access_token=AJPNSQO2PCITABYX0RFLWG

{
    "ClientID": "000000",
    "UserID": "",
    "RedirectURI": "",
    "Scope": "read",
    "Code": "",
    "CodeCreateAt": "0001-01-01T00:00:00Z",
    "CodeExpiresIn": 0,
    "Access": "AJPNSQO2PCITABYX0RFLWG",
    "AccessCreateAt": "2016-11-29T09:00:52.617250916+08:00",
    "AccessExpiresIn": 7200000000000,
    "Refresh": "",
    "RefreshCreateAt": "0001-01-01T00:00:00Z",
    "RefreshExpiresIn": 0
}