Lightning Talk: Composable, Polyglot Concurrency with WASIp3
summary
Shows a Python web server that uppercases incoming message bodies and a Rust middleware that transparently decompresses incoming data and compresses responses, composed with the WebAssembly Compositions (WAC) tool and run via a WASIp3-compatible host (Spin used in demo). Uses WIT-defined interface with the new future and stream types and async functions so components call each other concurrently; demo initially fails due to a curl binary flag but works after fixing. Authors cite microbenchmarks around 20 ns cross-component call overhead.
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chapters (7)
- 0:00Introduction
- 0:22Python uppercase demo
- 2:53Rust compression middleware
- 3:57Middleware composition
- 8:50Testing compression
- 9:34Key takeaways
- 10:37Q&A
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