Bitcoin Twitter & BlueSky Bot

A Node.js application that posts the latest Bitcoin price, market cap, volume updates, and other financial data on both Twitter and BlueSky. It integrates with the Twitter API v2 and the Bluesky API. The application is deployed on AWS, using various AWS services to automate and manage tasks.

AWS Services Used

• AWS Lambda: The core logic of the application runs as a serverless function in AWS Lambda, handling the process of fetching data, generating content, and posting to Twitter and BlueSky.
• AWS S3: Used to store and manage images, such as screenshots or charts that are posted along with updates.
• AWS EventBridge: Schedules cron jobs to trigger the Lambda function at specific intervals, automating the posts without manual intervention.

Additional Tools

• @sparticuz/chromium: A headless version of Chromium optimized for Lambda, used to take screenshots and scrape information from websites. This is useful for gathering external data and generating visuals for the posts.
• Puppeteer: Used in conjunction with Chromium to automate the process of interacting with websites and collecting data via scraping.

Prerequisites

Before running the application, you need to set up accounts and credentials for both Twitter and BlueSky:

Twitter Setup

1. Set up a Twitter developer account.
2. Create a new Twitter app.
3. Obtain the following credentials:
   • APP_KEY: Your Twitter app's API key
   • APP_SECRET: Your Twitter app's API secret key
   • ACCESS_TOKEN: Your Twitter account's access token
   • ACCESS_SECRET: Your Twitter account's access token secret

BlueSky Setup

1. Create a BlueSky account.
2. Obtain your BlueSky handle and password.
   • BLUESKY_APP_USERNAME: Your BlueSky handle
   • BLUESKY_APP_PASSWORD: Your BlueSky password

You will also need Node.js installed, along with the following packages:

Dependencies

The following packages are required to run the application:

• @atproto/api: Used to interact with the BlueSky API for posting updates.
• @aws-sdk/client-s3: AWS SDK for uploading and managing files in Amazon S3.
• @aws-sdk/lib-storage: Provides utility methods for managing storage in AWS, used for handling uploads to S3.
• @aws-sdk/s3-request-presigner: Helps generate presigned URLs for securely uploading to Amazon S3.
• @sparticuz/chromium: A version of Chromium optimized for use in AWS Lambda environments, used for generating screenshots or headless browsing tasks.
• axios: Promise-based HTTP client used for making API requests (e.g., to CoinGecko for price data).
• dotenv: Loads environment variables from a .env file to manage sensitive information.
• puppeteer-core: A headless browser tool for generating screenshots or automating web interactions.
• twitter-api-v2: A wrapper for the Twitter API, used to post updates on Twitter.

Environment Variables

Create a .env file in the root directory of the project and add your Twitter and BlueSky API credentials, along with other necessary environment variables.

Installation

1. Clone this repository to your local machine:

   git clone https://github.com/gabireze/bitcoin-twitter-bot.git

2. Install the required packages:

   cd bitcoin-twitter-bot
   npm install

3. Create a .env file in the root directory of the project and add your Twitter and BlueSky API credentials:

APP_KEY=your-app-key
APP_SECRET=your-app-secret
ACCESS_TOKEN=your-access-token
ACCESS_SECRET=your-access-token-secret

BLUESKY_APP_USERNAME=your_bluesky_handle
BLUESKY_APP_PASSWORD=your_bluesky_password

MY_CUSTOM_ACCESS_KEY_ID=
MY_CUSTOM_SECRET_ACCESS_KEY=
AWS_REGION=
AWS_S3_BUCKET=
AWS_EXECUTION_ENV=AWS_Lambda_nodejs
HEADLESS=true

COINGECKO_API_URL=https://api.coingecko.com/api/v3
CURRENCY=usd
COIN_ID=bitcoin
FEAR_GREED_INDEX_IMAGE_URL=https://alternative.me/crypto/fear-and-greed-index.png
FEAR_GREED_INDEX_IMAGE_PATH=./fearAndGreedIndex.png
FEAR_GREED_INDEX_IMAGE_KEY=fearAndGreedIndex.png
BITCOIN_MONTHLY_RETURNS_IMAGE_PATH=bitcoinMonthlyReturns.png
BITCOIN_MONTHLY_RETURNS_IMAGE_KEY=bitcoinMonthlyReturns.png

4. Run the application:

   npm start

The application will fetch the latest Bitcoin price data from the CoinGecko API, format the data into a tweet, and post it on both Twitter and BlueSky using your account's credentials.

Customization

You can customize the application by changing the following variables in the index.mjs file:

• CURRENCY: the currency in which to display the price and market cap information (default: "usd")
• COIN_ID: the CoinGecko ID of the cryptocurrency to track (default: "bitcoin")
• DAYS: the number of days of historical data to retrieve from the CoinGecko API (default: 1) You can also modify the tweet message by editing the getPriceData function in the index.mjs file.

Follow us

Stay up to date with the latest #Bitcoin news and price updates by following @BitcoinFocusNow on Twitter and @bitcoinprice.bsky.social on BlueSky!

License

This project is licensed under the MIT License. See the LICENSE file for more information.