Dapr-Enabled Wasm Microservices
Talkat WasmCon 2023 · on Thursday, 2023-09-07· at 11:45· Grand Ballroom F, Hyatt Regency Bellevue, 900 Bellevue Way NE·
summary
Wasm microservices compile Rust code to Wasm and use the WasmEdge Dapr Rust SDK to call a Dapr sidecar, giving access to 100+ components (databases, Pub/Sub, secrets) without embedding drivers. Demos show tiny service binaries (about 700–800 KB), an image-grayscale + image-classifier + event pipeline writing to MySQL, and optimistic telemetry with sidecar tracing. Nonblocking sockets enable Tokio/Hyper drivers, sidecar calls run around 0.6 ms latency, and gRPC support is a stated future target.
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chapters (8)
- 0:00Dapr and Wasm microservices
- 4:55Dapr as distributed API layer
- 13:44Wasm microservices with WasmEdge
- 16:35Cloud challenges in Wasm
- 19:21Dapr’s Wasm constraints solution
- 22:29Dapr Wasm sandbox and SDK
- 27:45Demo: Dapr-enabled Wasm microservices
- 31:55Dapr and Wasm future plans
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