Identifying Facebook Messenger user with UserID from a Facebook Login

Question

I am trying out the new Facebook Messenger Platform and have hit a bit of a problem.

When a user first chats with my Bot, I want to use the sender.id to loo

Answer 1

I solved it different way but it works perfectly by graph API,i read mailbox of my page so that when any one can interact by messenger bot than i read pages inbox and iterate through,

Step 1:

Do a HTTP get request by graph API , you want a PAGE_UNIQUE_ID from Graph API ,

GET REQUEST

https://graph.facebook.com/v2.6/?fields=conversations.limit(10){participants,updated_time,id}&access_token=

PAGE_UNIQUE_ID Hints:

Go ===> https://developers.facebook.com/tools/explorer/ ==> Press "Get Token" ===> Select your desired page ===>Finally Submit , You show a id on output that is PAGE_UNIQUE_ID in here.

Check on browser for resoponse.

Step 2:

After doing above http request ,you get a JSON object that will show latest 10 conversation of pages where desired facebook id included.

Step 3:

Do iteration through by user full name or you can use lodash or underscore at your choice,

getUserID(response,'Zahid Rahman')


function getUserID(response, fullname) {
  if (response && response.conversations && response.conversations.data) { //Check response is correct
    var conversations = response.conversations.data;                       //Get all conversations
    for (var j = 0; j < conversations.length; j++) {
      var conversationsParticipants = conversations[j].participants.data; 
      for (var k = 0; k < conversationsParticipants.length; k++) {         //Get all particiapnts of a single conversation.

        var conversationsParticipantsEach = conversationsParticipants[k];
        if (conversationsParticipantsEach.name === fullname) {             //Check fullname match or not
          console.log("Desired Facebook User ID : " + conversationsParticipants[k].id);
          return conversationsParticipants[k].id;     
        } 
      }
    }
  }
}

Hope it will help you.