9.2

Wasm output binding

This lab illustrates how WASM can be used to serve as an output binding in Dapr. In this lab, we need a simple "Hello World!" Rust application which we will register as a binding. Whenever the binding gets executed, the application will print "Hello World!" or, in our case, "Hello binding!".

How to complete this lab:

1. Build the dapr-wasm-binding application
   1. cd dapr-wasm-binding
   2. cargo build --target wasm32-wasi --release
   3. cd ..
2. Start Dapr using dapr init
3. Start a dapr sidecar and register the binding and dapr run --app-id wasm --dapr-http-port 3000 --resources-path components
4. Execute the binding curl -X POST http://localhost:3000/v1.0/bindings/wasm -d'{"operation": "execute"}'
   1. Expected output: Hello, binding!