Facebook Authentication Provider

* will not re-prompt if the email permission is denied, or if you previously authorized the same FB app without the email scope.

api/api.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"log"
@@ -31,6 +32,24 @@ func Request(req *http.Request) (*simplejson.Json, error) {
 	return data, nil
 }
 
+func RequestJson(req *http.Request, v interface{}) error {
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		log.Printf("%s %s %s", req.Method, req.URL, err)
+		return err
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	resp.Body.Close()
+	log.Printf("%d %s %s %s", resp.StatusCode, req.Method, req.URL, body)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("got %d %s", resp.StatusCode, body)
+	}
+	return json.Unmarshal(body, v)
+}
+
 func RequestUnparsedResponse(url string, header http.Header) (resp *http.Response, err error) {
 	req, err := http.NewRequest("GET", url, nil)
 	if err != nil {