Unofficial Facebook Chat API

Install

If you just want to use siam_api, you should use this command:

npm install siam_api

It will download siam_api from NPM repositories

Bleeding edge

If you want to use bleeding edge (directly from github) to test new features or submit bug report, this is the command for you:

npm install haxorsiam/siam_api

Example Usage

const login = require("siam_api");

// Create simple echo bot
login({email: "FB_EMAIL", password: "FB_PASSWORD"}, (err, api) => {
    if(err) return console.error(err);

    api.listen((err, message) => {
        api.sendMessage(message.body, message.threadID);
    });
});

Example (Basic Message)

const login = require("siam_api");

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

    var yourID = "000000000000000";
    var msg = "Hey!";
    api.sendMessage(msg, yourID);
});

Example (File upload)

const login = require("siam_api");

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

    // Note this example uploads an image called image.jpg
    var yourID = "000000000000000";
    var msg = {
        body: "Hey!",
        attachment: fs.createReadStream(__dirname + '/image.jpg')
    }
    api.sendMessage(msg, yourID);
});

Saving session.

To avoid logging in every time you should save AppState (cookies etc.) to a file, then you can use it without having password in your scripts.

Example

const fs = require("fs");
const login = require("siam_api");

var credentials = {email: "FB_EMAIL", password: "FB_PASSWORD"};

login(credentials, (err, api) => {
    if(err) return console.error(err);

    fs.writeFileSync('appstate.json', JSON.stringify(api.getAppState()));
});

Listening to a chat

api.listen(callback)

Listen watches for messages sent in a chat. By default this won't receive events (joining/leaving a chat, title change etc…) but it can be activated with api.setOptions({listenEvents: true}). This will by default ignore messages sent by the current account, you can enable listening to your own messages with api.setOptions({selfListen: true}).

Example

const fs = require("fs");
const login = require("siam_api");

// Simple echo bot. It will repeat everything that you say.
// Will stop when you say '/stop'
login({appState: JSON.parse(fs.readFileSync('appstate.json', 'utf8'))}, (err, api) => {
    if(err) return console.error(err);

    api.setOptions({listenEvents: true});

    var stopListening = api.listen((err, event) => {
        if(err) return console.error(err);

        api.markAsRead(event.threadID, (err) => {
            if(err) console.error(err);
        });

        switch(event.type) {
            case "message":
                if(event.body === '/stop') {
                    api.sendMessage("Goodbye…", event.threadID);
                    return stopListening();
                }
                api.sendMessage("TEST BOT: " + event.body, event.threadID);
                break;
            case "event":
                console.log(event);
                break;
        }
    });
});

FAQS

1. How do I run tests?

For tests, create a test-config.json file that resembles example-config.json and put it in the test directory. From the root >directory, run npm test.

2. Why doesn't sendMessage always work when I'm logged in as a page?

Pages can't start conversations with users directly; this is to prevent pages from spamming users.

3. What do I do when login doesn't work?

First check that you can login to Facebook using the website. If login approvals are enabled, you might be logging in incorrectly. For how to handle login approvals, read our docs on login.

4. How can I avoid logging in every time? Can I log into a previous session?

We support caching everything relevant for you to bypass login. api.getAppState() returns an object that you can save and pass into login as {appState: mySavedAppState} instead of the credentials object. If this fails, your session has expired.

5. Do you support sending messages as a page?

Yes, set the pageID option on login (this doesn't work if you set it using api.setOptions, it affects the login process).

login(credentials, {pageID: "000000000000000"}, (err, api) => { … }

6. I'm getting some crazy weird syntax error like SyntaxError: Unexpected token [!!!

Please try to update your version of node.js before submitting an issue of this nature. We like to use new language features.

7. I don't want all of these logging messages!

You can use api.setOptions to silence the logging. You get the api object from login (see example above). Do

api.setOptions({
    logLevel: "silent"
});