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cloud.google.com·7h ago
Security
Cloudflare Blog·Aug 3·5 min read
Workers RPC now works across Python and JavaScript
TL;DR
Cloudflare has enabled seamless communication between Python and JavaScript Workers, allowing them to share live object references and invoke methods without the need for APIs or serialization. This innovation simplifies cross-language interactions in serverless environments.
✦ Why It Matters
Start using Cloudflare Workers in both Python and JavaScript to streamline your serverless application development.
Key Takeaways
- Utilize Workers RPC for seamless cross-language communication.
- Leverage Pyodide FFI for automatic type translation.
- Expose Python methods to JavaScript Workers easily.
- Implement Service bindings for effective RPC setup.
How It Works
The cross-language RPC functionality is powered by Pyodide's Foreign Function Interface (FFI), which automatically translates types between JavaScript and Python. This allows developers to call methods across languages as if they were native function calls, with exceptions and promises handled transparently.
For example, JavaScript objects are converted to Python dictionaries, and vice versa, ensuring a smooth developer experience.