Merge pull request #51 from OAyomide/master

remove default profile fields; fix minor typo

examples/basic/main.go

@@ -43,7 +43,7 @@ func main() {
 	client.HandleMessage(func(m messenger.Message, r *messenger.Response) {
 		fmt.Printf("%v (Sent, %v)\n", m.Text, m.Time.Format(time.UnixDate))
 
-		p, err := client.ProfileByID(m.Sender.ID)
+		p, err := client.ProfileByID(m.Sender.ID, []string{"name", "first_name", "last_name", "profile_pic"})
 		if err != nil {
 			fmt.Println("Something went wrong!", err)
 		}

examples/extension/main.go

@@ -52,7 +52,7 @@ func main() {
 	client.HandleMessage(func(m messenger.Message, r *messenger.Response) {
 		fmt.Printf("%v (Sent, %v)\n", m.Text, m.Time.Format(time.UnixDate))
 
-		p, err := client.ProfileByID(m.Sender.ID)
+		p, err := client.ProfileByID(m.Sender.ID, []string{"name", "first_name", "last_name", "profile_pic"})
 		if err != nil {
 			fmt.Println("Something went wrong!", err)
 		}

examples/linked-account/main.go

@@ -54,7 +54,7 @@ func main() {
 	client.HandleMessage(func(m messenger.Message, r *messenger.Response) {
 		log.Printf("%v (Sent, %v)\n", m.Text, m.Time.Format(time.UnixDate))
 
-		p, err := client.ProfileByID(m.Sender.ID)
+		p, err := client.ProfileByID(m.Sender.ID, []string{"name", "first_name", "last_name", "profile_pic"})
 		if err != nil {
 			log.Println("Failed to fetch user profile:", err)
 		}

message.go

@@ -2,7 +2,7 @@ package messenger
 
 import "time"
 
-// Message represents a Facebook messenge message.
+// Message represents a Facebook messenger message.
 type Message struct {
 	// Sender is who the message was sent from.
 	Sender Sender `json:"-"`

messenger.go

@@ -25,11 +25,6 @@ const (
 	MessengerProfileURL = "https://graph.facebook.com/v2.6/me/messenger_profile"
 )
 
-var (
-	// NOTE: If you change this slice you should update the comment on the ProfileByID function below too. 
-	defaultProfileFields = []string{"first_name", "last_name", "profile_pic", "locale", "timezone", "gender"}
-)
-
 // Options are the settings used when creating a Messenger client.
 type Options struct {
 	// Verify sets whether or not to be in the "verify" mode. Used for
@@ -154,17 +149,16 @@ func (m *Messenger) Handler() http.Handler {
 	return m.mux
 }
 
-// ProfileByID retrieves the Facebook user profile associated with that ID
-// when no profile fields are specified it uses some sane defaults.
-// 
-// These default fields are:
-// - First name
-// - Last name
-// - Profile picture
-// - Locale
-// - Timezone
-// - Gender
-func (m *Messenger) ProfileByID(id int64, profileFields ...string) (Profile, error) {
+// ProfileByID retrieves the Facebook user profile associated with that ID.
+// According to the messenger docs: https://developers.facebook.com/docs/messenger-platform/identity/user-profile,
+// Developers must ask for access except for some fields that are accessible without permissions.
+//
+// At the time of writing (2019-01-04), these fields are
+// - Name
+// - First Name
+// - Last Name
+// - Profile Picture
+func (m *Messenger) ProfileByID(id int64, profileFields []string) (Profile, error) {
 	p := Profile{}
 	url := fmt.Sprintf("%v%v", ProfileURL, id)
 
@@ -173,10 +167,6 @@ func (m *Messenger) ProfileByID(id int64, profileFields ...string) (Profile, err
 		return p, err
 	}
 
-	if len(profileFields) == 0 {
-		profileFields = defaultProfileFields
-	}
-
 	fields := strings.Join(profileFields, ",")
 
 	req.URL.RawQuery = "fields=" + fields + "&access_token=" + m.token
@@ -242,7 +232,7 @@ func (m *Messenger) GreetingSetting(text string) error {
 	return checkFacebookError(resp.Body)
 }
 
-// CallToActionsSetting sends settings for Get Started or Persist Menu
+// CallToActionsSetting sends settings for Get Started or Persistent Menu
 func (m *Messenger) CallToActionsSetting(state string, actions []CallToActionsItem) error {
 	d := CallToActionsSetting{
 		SettingType:   "call_to_actions",

profile.go

@@ -2,6 +2,7 @@ package messenger
 
 // Profile is the public information of a Facebook user
 type Profile struct {
+	Name          string  `json:"name"`
 	FirstName     string  `json:"first_name"`
 	LastName      string  `json:"last_name"`
 	ProfilePicURL string  `json:"profile_pic"`