Crypto Market Alert System with Binance and Telegram Integration

This n8n workflow automates the process of fetching cryptocurrency market data from Binance and sending alerts to a Telegram channel based on custom logic. It's designed to keep you informed about significant price movements or other market conditions you define.

What it does

1. Schedules Execution: The workflow runs at a predefined interval (e.g., every 5 minutes) to regularly check market conditions.
2. Fetches Market Data: It makes an HTTP request to the Binance API to retrieve the latest cryptocurrency market data.
3. Processes Data with Custom Logic: A "Code" node (or "Function" node, depending on the n8n version) allows you to implement custom JavaScript logic to analyze the fetched data. This is where you define your alert conditions (e.g., price changes, volume spikes, specific coin movements).
4. Sends Telegram Alerts: If the custom logic determines that an alert condition is met, it sends a formatted message to a specified Telegram chat.

Prerequisites/Requirements

• n8n Instance: A running n8n instance.
• Binance Account (Optional, for API access): While the workflow uses the public Binance API, if you need authenticated requests for more advanced data, you'll need a Binance API key and secret.
• Telegram Bot: A Telegram bot token and the chat ID of the channel or user where you want to receive alerts.
  • You can create a new bot by talking to BotFather on Telegram.
  • To get your chat ID, you can forward a message from your target chat/channel to the get_id_bot or use a similar bot.

Setup/Usage

1. Import the Workflow:
   • Download the workflow JSON provided.
   • In your n8n instance, click on "Workflows" in the left sidebar.
   • Click "New" and then "Import from JSON".
   • Paste the workflow JSON and click "Import".
2. Configure Credentials:
   • Telegram:
     • Click on the "Telegram" node.
     • Under "Credentials", click "Create New".
     • Select "Telegram API".
     • Enter your Telegram Bot Token.
     • Save the credential.
3. Customize the "HTTP Request" Node:
   • Click on the "HTTP Request" node.
   • The URL should point to the Binance API endpoint for market data (e.g., https://api.binance.com/api/v3/ticker/24hr for 24-hour ticker data). Adjust this as needed for the specific data you want to retrieve.
   • Ensure the "Request Method" is GET.
4. Implement Custom Alert Logic in the "Code" Node:
   • Click on the "Code" node (or "Function" node).
   • This is the most crucial part. You'll need to write JavaScript code to analyze the data received from the Binance API and decide when to send an alert.
   • Example Logic (Illustrative - you will need to adapt this):

     const items = $input.json; // Assuming the HTTP Request returns JSON data
     
     let alerts = [];
     
     // Example: Check for a specific coin's price change
     const btcData = items.find(item => item.symbol === 'BTCUSDT');
     if (btcData && parseFloat(btcData.priceChangePercent) > 5) {
         alerts.push(`🚨 BTCUSDT price increased by ${btcData.priceChangePercent}% in 24h! Current price: ${btcData.lastPrice}`);
     }
     
     // Example: Check for high volume on any coin
     for (const item of items) {
         if (parseFloat(item.volume) > 1000000000) { // Example: Volume > 1 Billion
             alerts.push(`📈 High volume detected for ${item.symbol}: ${item.volume}`);
         }
     }
     
     if (alerts.length > 0) {
         return [{ json: { message: alerts.join('\n') } }];
     } else {
         // No alerts, return an empty array or a message to prevent Telegram notification
         return [];
     }
     

   • The return statement should output an item (or items) if an alert needs to be sent. The Telegram node will use this output.
5. Configure the "Telegram" Node:
   • Click on the "Telegram" node.
   • Select the "Send Text Message" operation.
   • In the "Chat ID" field, enter the chat ID of your Telegram channel or user.
   • In the "Text" field, reference the output from your "Code" node. For example, if your code outputs a message property, you would use an expression like: {{ $json.message }}.
6. Set the Schedule:
   • Click on the "Schedule Trigger" node.
   • Configure the desired interval for the workflow to run (e.g., "Every 5 minutes").
7. Activate the Workflow:
   • Toggle the workflow to "Active" in the top right corner of the n8n editor.

The workflow will now run automatically based on your schedule, fetch Binance data, apply your custom logic, and send Telegram alerts when your conditions are met.