Merge pull request #60 from ahmdaeyz/master

Adding missing json fields and list template method

receiving.go

@@ -92,6 +92,8 @@ type Recipient struct {
 
 // Attachment is a file which used in a message.
 type Attachment struct {
+	Title string `json:"title,omitempty"`
+	URL   string `json:"url,omitempty"`
 	// Type is what type the message is. (image, video, audio or location)
 	Type string `json:"type"`
 	// Payload is the information for the file which was sent in the attachment.
@@ -111,7 +113,7 @@ type QuickReply struct {
 // Payload is the information on where an attachment is.
 type Payload struct {
 	// URL is where the attachment resides on the internet.
-	URL         string       `json:"url,omitempty"`
+	URL string `json:"url,omitempty"`
 	// Coordinates is Lat/Long pair of location pin
 	Coordinates *Coordinates `json:"coordinates,omitempty"`
 }
@@ -119,7 +121,7 @@ type Payload struct {
 // Coordinates is a pair of latitude and longitude
 type Coordinates struct {
 	// Lat is latitude
-	Lat  float64 `json:"lat"`
+	Lat float64 `json:"lat"`
 	// Long is longitude
 	Long float64 `json:"long"`
 }

response.go

@@ -289,6 +289,32 @@ func (r *Response) GenericTemplate(elements *[]StructuredMessageElement, messagi
 	return r.DispatchMessage(&m)
 }
 
+// ListTemplate sends a list of elements
+func (r *Response) ListTemplate(elements *[]StructuredMessageElement, messagingType MessagingType, tags ...string) error {
+	var tag string
+	if len(tags) > 0 {
+		tag = tags[0]
+	}
+
+	m := SendStructuredMessage{
+		MessagingType: messagingType,
+		Recipient:     r.to,
+		Message: StructuredMessageData{
+			Attachment: StructuredMessageAttachment{
+				Type: "template",
+				Payload: StructuredMessagePayload{
+					TopElementStyle: "compact",
+					TemplateType:    "list",
+					Buttons:         nil,
+					Elements:        elements,
+				},
+			},
+		},
+		Tag: tag,
+	}
+	return r.DispatchMessage(&m)
+}
+
 // SenderAction sends a info about sender action
 func (r *Response) SenderAction(action string) error {
 	m := SendSenderAction{
@@ -386,7 +412,9 @@ type StructuredMessageData struct {
 // StructuredMessageAttachment is the attachment of a structured message.
 type StructuredMessageAttachment struct {
 	// Type must be template
-	Type AttachmentType `json:"type"`
+	Title string         `json:"title,omitempty"`
+	URL   string         `json:"url,omitempty"`
+	Type  AttachmentType `json:"type"`
 	// Payload is the information for the file which was sent in the attachment.
 	Payload StructuredMessagePayload `json:"payload"`
 }