How to make a Chat GPT whatsapp bot

[smashah]

Prerequisites

You need to have your Whatsapp device on hand and an openai api key (should look something like sk-VV8rFJMaybdyubcauydbcauybcYlqWdqFbpzz).

Step 0

Set up your project folder.

For Mac & linux

mkdir open-wa-ai
cd open-wa-ai
npm init -y

Step 1

Install dependencies:

> npm i @open-wa/wa-automate@latest openai

Step 2

Create a file called cli.config.js with the following code:

const { Configuration, OpenAIApi } = require("openai");
const openai = new OpenAIApi(new Configuration({ apiKey: process.env.OPENAI_API_KEY }));
let processedMessages = []
exports.default = async (sessionId) => {
  return {
    "messagePreprocessor": [
      async (message, client, alreadyProcessing) => {
        if(processedMessages.includes(message.id) || !message.text.startsWith("!")) return message;
        processedMessages.push(message.id)
        let t = message.text.substr(1) 
        console.log("Processing...", t)
        const completion = await openai.createChatCompletion({
          model: "gpt-3.5-turbo",
          messages: [
            { "role": "system", "content": "You are a helpful assistant." }, // You can change the system prompt
            ...(await client.getGptArray(message.chatId, 10)), //last ten messages
            { role: "user", content: t }
          ],
        }).catch(e => console.error(e));
        const reply = await client.reply(message.chatId, completion.data.choices[0].message.content, message.id);
        console.table({ sessionId, text: t, completion: completion.data.choices[0].text, chat: message.chatId, id: reply })
        return message;
      }
    ]
  }
}

Step 3

Run the following command in the same folder as your newly created cli.config.js

> OPENAI_API_KEY="INSERT YOUR OPENAI KEY HERE" npx @open-wa/wa-automate

Scan the QR code, then wait for the session to be ready. Once ready you can send the account a message and chargpt will respond to any message starting with ! (You can eliminate this requirement by removing line 8)

Enjoy!