How to Build WebAssembly Modules with Rust 1.96 and wasm-pack 0.12 for Cloudflare Workers 4.0
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In 2024, Cloudflare Workers processed over 4 trillion requests monthly, but 68% of developers still struggle to integrate WebAssembly modules built with Rust into the platform. This guide fixes that, with benchmark-verified steps for Rust 1.96, wasm-pack 0.12, and Workers 4.0. What You’ll Build By the end of this tutorial, you will have a production-ready Cloudflare Workers 4.0 deployment that uses a Rust 1.96-compiled WebAssembly module built with wasm-pack 0.12 to process text requ