garethpaul/main.go Secret

## main.go
package main

import (
	"fmt"
	"net/http"
  	"io/ioutil"
	"golang.org/x/oauth2"
	"golang.org/x/oauth2/foursquare"
)

var (
	foursquareOauthConfig = &oauth2.Config{
		RedirectURL:	"http://localhost:4000/FoursquareCallback",
		ClientID:     os.Getenv("foursquarekey"),
		ClientSecret: os.Getenv("foursquaresecret"),
		Endpoint:     foursquare.Endpoint,
	}
 	// Some random string, random for each request
	oauthStateString = "random"
)

const htmlIndex = `<html><body>
<a href="/FoursquareLogin">Log in with Foursquare</a>
</body></html>
`

func main() {
	http.HandleFunc("/", handleMain)
	http.HandleFunc("/FoursquareLogin", handleFoursquareLogin)
	http.HandleFunc("/FoursquareCallback", handleFoursquareCallback)
	fmt.Println(http.ListenAndServe(":4000", nil))
}
func handleMain(w http.ResponseWriter, r *http.Request) {
	  fmt.Fprintf(w, htmlIndex)
}

func handleFoursquareLogin(w http.ResponseWriter, r *http.Request) {
	url := foursquareOauthConfig.AuthCodeURL(oauthStateString)
	http.Redirect(w, r, url, http.StatusTemporaryRedirect)
}

func handleFoursquareCallback(w http.ResponseWriter, r *http.Request) {
	state := r.FormValue("state")
	if state != oauthStateString {
		fmt.Printf("invalid oauth state, expected '%s', got '%s'\n", oauthStateString, state)
		http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
		return
	}

	code := r.FormValue("code")
	token, err := foursquareOauthConfig.Exchange(oauth2.NoContext, code)
	if err != nil {
		fmt.Printf("oauthConf.Exchange() failed with '%s'\n", err)
		http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
		return
	}

	response, err := http.Get("https://api.foursquare.com/v2/users/self/checkins?v=20160815&afterTimestamp=1279044824&oauth_token=" + token.AccessToken)

	defer response.Body.Close()
	contents, err := ioutil.ReadAll(response.Body)
	fmt.Fprintf(w, "Content: %s\n", contents)
}
	package main

	import (
	"fmt"
	"net/http"
	"io/ioutil"
	"golang.org/x/oauth2"
	"golang.org/x/oauth2/foursquare"
	)

	var (
	foursquareOauthConfig = &oauth2.Config{
	RedirectURL: "http://localhost:4000/FoursquareCallback",
	ClientID: os.Getenv("foursquarekey"),
	ClientSecret: os.Getenv("foursquaresecret"),
	Endpoint: foursquare.Endpoint,
	}
	// Some random string, random for each request
	oauthStateString = "random"
	)

	const htmlIndex = `<html><body>
	<a href="/FoursquareLogin">Log in with Foursquare</a>
	</body></html>
	`

	func main() {
	http.HandleFunc("/", handleMain)
	http.HandleFunc("/FoursquareLogin", handleFoursquareLogin)
	http.HandleFunc("/FoursquareCallback", handleFoursquareCallback)
	fmt.Println(http.ListenAndServe(":4000", nil))
	}
	func handleMain(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, htmlIndex)
	}

	func handleFoursquareLogin(w http.ResponseWriter, r *http.Request) {
	url := foursquareOauthConfig.AuthCodeURL(oauthStateString)
	http.Redirect(w, r, url, http.StatusTemporaryRedirect)
	}

	func handleFoursquareCallback(w http.ResponseWriter, r *http.Request) {
	state := r.FormValue("state")
	if state != oauthStateString {
	fmt.Printf("invalid oauth state, expected '%s', got '%s'\n", oauthStateString, state)
	http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
	return
	}

	code := r.FormValue("code")
	token, err := foursquareOauthConfig.Exchange(oauth2.NoContext, code)
	if err != nil {
	fmt.Printf("oauthConf.Exchange() failed with '%s'\n", err)
	http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
	return
	}

	response, err := http.Get("https://api.foursquare.com/v2/users/self/checkins?v=20160815&afterTimestamp=1279044824&oauth_token=" + token.AccessToken)

	defer response.Body.Close()
	contents, err := ioutil.ReadAll(response.Body)
	fmt.Fprintf(w, "Content: %s\n", contents)
	}