api.sendMessage with mentions no longer working

[ghost]

Some time within the last 2 days this function broke, and the API gets HTTP error 500, followed by error 404 when trying to send this message. Attached below is the GitHub sample code in the documentation.

const login = require("facebook-chat-api");

login({email: "EMAIL", password: "PASSWORD"}, (err, api) => {
    if(err) return console.error(err);

    api.listen((err, message) => {
        if (message && message.body) {
            // Getting the actual sender name from ID involves calling
            // `api.getThreadInfo` and `api.getUserInfo`
            api.sendMessage({
                body: 'Hello @Sender! @Sender!',
                mentions: [{
                     tag: '@Sender',
                     id: message.senderID,
                     fromIndex: 9, // Highlight the second occurrence of @Sender
                }],
            }, message.threadID);
        }
    });
});

[Schmavery]

Seems like we might be missing a new field "profile_xmd[i][type]". In my tests so far it's always been equal to 'p'. Do you want to try adding this line and seeing in it helps?
https://github.com/Schmavery/facebook-chat-api/blob/master/src/sendMessage.js#L262-L264

I.e. in sendMessage, instead of

form['profile_xmd[' + i + '][offset]'] = offset;
form['profile_xmd[' + i + '][length]'] = tag.length;
form['profile_xmd[' + i + '][id]'] = id;

we would have

form['profile_xmd[' + i + '][offset]'] = offset;
form['profile_xmd[' + i + '][length]'] = tag.length;
form['profile_xmd[' + i + '][id]'] = id;
form['profile_xmd[' + i + '][type]'] = 'p';

[ghost]

Can confirm that this solves the issue for me.

[Schmavery]

Awesome! Any chance you want to submit a PR with that change? :)

[Schmavery]

Thanks again @7222-SIMON 😄

[kentnek]

UPDATE: oh I realized that the version I pulled from NPM is too old, which does not include the fix above.

Hi, this has stopped working again, although there's no error. 😢

Below's the recorded form data, I don't see any difference from the one above though.

client: mercury
action_type: ma-type:user-generated-message
body: @Kent Nguyen hello
ephemeral_ttl_mode: 0
has_attachment: false
message_id: 6383308091057059549
offline_threading_id: 6383308091057059549
source: source:messenger:web
thread_fbid: 1882350935122661
timestamp: 1521899245037
profile_xmd[0][id]: 1373104146
profile_xmd[0][offset]: 0
profile_xmd[0][length]: 12
profile_xmd[0][type]: p
__user: 100008177914293
__a: 1
__dyn: 5V4cjJLyGmaWxd2u6W85k2m2WWAKGgS8zXrWo466ES2N6wAxu13wFGEa8Gm4UJi28rxuF98ScDKuEjKewzAxaag4idxK4ohyVeFFUkxu9x2UOESi5U5aayrgS2m4oqyUfe5FHxu9gqxKVUlF3Ey5ESq68G2ut5wIwpUCu4rGUpCwCGm8xC784a5olyoK7Uy5uazoK13x1yUPz_xe8hohxOU8E-8HgoV8O9wAhVrz8y2qczp4iaxa9AjxCfAxqa_xicCwzx-bw
__req: i
__be: -1
__pc: PHASED:messengerdotcom_pkg
__rev: 3752809
fb_dtsg: AQEjhv5giZAC:AQH1GLUOIgcO
jazoest: 265816910610411853103105906567586581724971768579731039979

[23phy]

switch (message.body) {
    case 'mention': {
        api.sendMessage({
            body: 'This is @you, and this is @me',
            mentions:
                [{
                    tag: '@you',
                    id: message.senderID,
                },
	        {
	            tag: '@me',
                    id: api.getCurrentUserID()
	        }],
        }, message.threadID);
    }
}

This works with the lastest Schmavery/facebook-chat-api

[shellmage]

@kentnek there seems to be a bug when tag is at offset 0
check issue #857 , I created a new PR for it #858.

[kentnek]

@shellcxd3 thanks! but I actually stopped using this library altogether as it seemed to cause my accounts to be flagged and banned by Facebook...