Messenger Platform Go SDK
A Go SDK for the Facebook Messenger Platform.
Installation
go get gopkg.in/maciekmm/messenger-platform-go-sdk.v4Usage
The main package has been named messenger for convenience.
Your first step is to create Messenger instance.
import "gopkg.in/maciekmm/messenger-platform-go-sdk.v4"
//...
messenger := &messenger.Messenger {
VerifyToken: "VERIFY_TOKEN/optional",
AppSecret: "APP_SECRET/optional",
AccessToken: "PAGE_ACCESS_TOKEN",
Debug: messenger.DebugAll, //All,Info,Warning
}Parameters
VerifyTokenis the token needed for a verification process facebook performs. It's only required once. Optional.AppSecretis the Application Secret token. It's used for message integrity check. Optional.AccessTokenis required to send messages. You can find this token in your app developer dashboard underMessengertab.Debugis used for setting debug mode type as described on https://developers.facebook.com/docs/graph-api/using-graph-api#debugging. Optional.
The next step is to hook up the handler to your HTTP server.
//hook up
http.HandleFunc("/webhook", messenger.Handler)
//start the server
http.ListenAndServe(":5646", nil)The next step is to subscribe to an event, to do that you have to hook up your own handler.
messenger.MessageReceived = MessageReceived
//...
func MessageReceived(event messenger.Event, opts messenger.MessageOpts, msg messenger.ReceivedMessage) {
//do stuff
}Sending messages
Example
Check more examples in examples folder.
var mess = &messenger.Messenger{
AccessToken: "ACCESS_TOKEN",
}
func main() {
mess.MessageReceived = MessageReceived
http.HandleFunc("/webhook", mess.Handler)
log.Fatal(http.ListenAndServe(":5646", nil))
}
func MessageReceived(event messenger.Event, opts messenger.MessageOpts, msg messenger.ReceivedMessage) {
profile, err := mess.GetProfile(opts.Sender.ID)
if err != nil {
fmt.Println(err)
return
}
resp, err := mess.SendSimpleMessage(opts.Sender.ID, fmt.Sprintf("Hello, %s %s, %s", profile.FirstName, profile.LastName, msg.Text))
if err != nil {
fmt.Println(err)
}
fmt.Printf("%+v", resp)
}