Cloudflare Workers now incorporate a JavaScript-native RPC system, streamlining communications between Workers and Durable Objects with ease akin to local function calls.

This development introduces improvements in functionality and security, allowing developers to manage remote procedure calls with simplicity and robustness, emphasizing minimal dependency use to enhance security.

Features like structured clonable types, function passing, and efficient data streaming via RPC promote better performance and scalability in application development.

The RPC system leverages Cap'n Proto under the hood but eliminates the need for schemas, simplifying its use with idiomatic JavaScript.

This aligns with modern programming practices, integrating seamlessly with Cloudflare’s serverless environment.

The RPC implementation does not require inter-thread communication in many cases, effectively reducing latency to nearly zero and simulating local execution performance.

By redefining the interaction model between distributed components, Cloudflare Workers RPC supports complex communication patterns while maintaining stringent security protocols based on the object-capability model.

This model ensures secure, controlled interactions across different service components, enhancing security without complex dependency chains.

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