OLED Actor

This project implements an actor that sets or clears the text on the OLED provider.

Upon receiving an http POST request, the actor sends the body text to the provider. Upon receiving an http DELETE request, the actor clears the OLED. For example, if the http server is running on localhost port 8000, the command

curl -D Hello "localhost:8000"

sets the OLED text to "Hello".

and

curl -X DELETE "localhost:8000"

clears the OLED text.

The implementation

To respond to http requests, the actor must implement the httpResponse method of the HttpServer interface interface.

The implementation is in the file src/lib.rs

See it in action

• To compile the actor and generate a signed WebAssembly module, type make.
• To load and start the actor you'll need to have a running OCI-compatible registry. Check that REG_URL setting in Makefile is correct, and run make push and make start to push the actor to the registry and start the actor. Alternately, you can load and start the actor from the host's web ui. When prompted for the path, select build/oled_actor_s.wasm.

The actor must be linked with an HttpServer capability provider with the contract id wasmcloud:httpserver. You can start the provider (TODO: need registry url and more specific instructions here)