ZCA-JS

This document is not compatible for the latest alpha version 2.0.0

This is an unofficial Zalo API for personal account. It work by simulating the browser to interact with Zalo Web.

disclaimer: We are not responsible if your account is locked or banned by Zalo. Use it at your own risk.

Installation

bun install zca-js # or npm install zca-js

Documentation

See API Documentation for more details.

Basic Usages

Login

UPDATE: You can now get all required information by using ZaloDataExtractor extension. Just open the extension and copy the data to your clipboard.

[ ZaloDataExtractor ] If you have opened the website https://chat.zalo.me/ but the extension does not have IMEI & Cookies, please click Refresh Page. Thank you very much ><

import { Zalo } from "zca-js";

const zalo = new Zalo(
    {
        cookie: "your_cookie_here",
        imei: "your_imei_here",
        userAgent: "your_user_agent_here",
    },
    {
        selfListen: false,
        checkUpdate: true,
    },
);

const api = await zalo.login();

Alternative: We also support J2TEAM Cookies extension:

import fs from "node:fs";
import { Zalo } from "zca-js";

const zalo = new Zalo(
    {
        cookie: JSON.parse(fs.readFileSync("./cookies.json", "utf-8")),
        imei: "your_imei_here",
        userAgent: "your_user_agent_here",
    },
    {
        selfListen: false,
        checkUpdate: true,
    },
);

const api = await zalo.login();

• cookie: Your Zalo cookie. You can get it by using J2TEAM Cookies extension or by using browser developer tools.
• imei: Your IMEI created by Zalo. You can get it using browser developer tools: localStorage.getItem('z_uuid') or localStorage.getItem('sh_z_uuid').
• userAgent: Your browser user agent. Better be from the same browser you get cookie.
• selfListen: Listen for messages sent by yourself. Default is false.
• checkUpdate: Check for zca-js update. Default is true.

Listen for new messages

import { Zalo, MessageType } from "zca-js";

const zalo = new Zalo(credentials);
const api = await zalo.login();

api.listener.on("message", (message) => {
    const isPlainText = typeof message.data.content === "string";

    switch (message.type) {
        case MessageType.DirectMessage: {
            if (isPlainText) {
                // received plain text direct message
            }
            break;
        }
        case MessageType.GroupMessage: {
            if (isPlainText) {
                // received plain text group message
            }
            break;
        }
    }
});

api.listener.start();

Note: Only one web listener can be started at a time. If you open Zalo in the browser while the listener is running, the listener will be stopped.

Send a message

import { Zalo, MessageType } from "zca-js";

const zalo = new Zalo(credentials);
const api = await zalo.login();

// Echo bot
api.listener.on("message", (message) => {
    const isPlainText = typeof message.data.content === "string";
    if (message.isSelf || !isPlainText) return;

    switch (message.type) {
        case MessageType.DirectMessage: {
            api.sendMessage(
                {
                    msg: "echo: " + message.data.content,
                    quote: message, // the message object to reply to (optional)
                },
                message.threadId,
                message.type, // MessageType.DirectMessage
            );
            break;
        }
        case MessageType.GroupMessage: {
            api.sendMessage(
                {
                    msg: "echo: " + message.data.content,
                    quote: message, // the message object to reply to (optional)
                },
                message.threadId,
                message.type, // MessageType.GroupMessage
            );
            break;
        }
    }
});

api.listener.start();

Get/Send a sticker

api.getStickers("hello").then(async (stickerIds) => {
    // Get the first sticker
    const stickerObject = await api.getStickersDetail(stickerIds[0]);
    api.sendMessageSticker(
        stickerObject,
        message.threadId,
        message.type, // MessageType.DirectMessage or MessageType.GroupMessage
    );
});

Example

See examples folder for more details.

Contributing

We welcome contributions from the community.

License

This project is licensed under the MIT License - see the LICENSE file for details.