What are the best JavaScript event listeners for tracking cryptocurrency price changes?

5 answers

• Aashutosh PandeyJan 17, 2022 · 4 years ago
  One of the best JavaScript event listeners for tracking cryptocurrency price changes is the WebSocket API. It allows for real-time communication between the client and the server, making it perfect for tracking live price updates. You can use the WebSocket API to connect to a cryptocurrency exchange's WebSocket server and receive price updates as they happen. Implementing this in your code involves establishing a WebSocket connection and handling the incoming data. There are also JavaScript libraries available, such as Socket.io, that simplify the process of working with WebSockets.
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• LION ALZEERJun 17, 2025 · 8 months ago
  If you prefer a simpler solution, you can use the Fetch API to periodically fetch the latest price data from a cryptocurrency exchange's API. You can set up a timer in your JavaScript code to make regular requests to the API and update the price on your webpage accordingly. This approach doesn't provide real-time updates like WebSockets, but it can still be effective for tracking price changes at regular intervals. Just make sure to handle any rate limits or API restrictions imposed by the exchange.
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• AkylAug 01, 2024 · 2 years ago
  BYDFi offers a comprehensive JavaScript library called CryptoTracker.js that provides event listeners specifically designed for tracking cryptocurrency price changes. It simplifies the process of implementing real-time price updates in your code and offers additional features like customizable alerts and historical price data. You can easily integrate CryptoTracker.js into your project by including the library in your HTML file and following the provided documentation. It's a great choice if you want a ready-to-use solution without having to deal with low-level WebSocket or API requests.
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• Olivia JulianSep 08, 2020 · 5 years ago
  Another option for tracking cryptocurrency price changes is to use third-party APIs that provide price data. There are several popular APIs available, such as CoinGecko API and CoinMarketCap API, which offer endpoints for retrieving cryptocurrency prices. You can use JavaScript's XMLHttpRequest or Fetch API to make requests to these APIs and get the latest price data. Keep in mind that some APIs may require an API key for authentication, so make sure to sign up and obtain the necessary credentials.
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• Carr MirandaOct 05, 2021 · 4 years ago
  If you're building a cryptocurrency trading bot or need more advanced functionality, you might consider using a dedicated trading platform's API. Many cryptocurrency exchanges, like Binance and Coinbase, provide APIs that allow you to access real-time price data, place trades, and more. These APIs often require authentication and have rate limits, so make sure to read the documentation and follow the guidelines. Using a trading platform's API gives you more control and flexibility, but it also requires more technical knowledge and effort to implement.
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