3 releases
0.1.2 | Apr 16, 2021 |
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0.1.1 | Feb 17, 2021 |
0.1.0 | Feb 10, 2021 |
#47 in #wasmcloud
Used in wasmcloud-nats
11KB
156 lines
wasmCloud Messaging Actor Interface
This crate provides wasmCloud actors with an interface to the Messaging capability provider. Actors using this
interface must have the claim wasmcloud:messaging
in order to have permission to handle messages, publish
and perform request-response actions. They also must have an active, configured binding to a Messaging capability provider.
Example:
extern crate wasmcloud_actor_messaging as messaging;
extern crate wasmcloud_actor_core as actor;
extern crate wapc_guest as guest;
use guest::prelude::*;
#[actor::init]
pub fn init() {
messaging::Handlers::register_handle_message(handle_message);
}
/// Reply to a "ping" message with "pong"
fn handle_message(message: messaging::BrokerMessage) -> HandlerResult<()> {
if String::from_utf8(message.body)? == "ping".to_string() {
messaging::default().publish(message.reply_to, "".to_string(), "pong".to_string().into_bytes())?;
}
Ok(())
}
Dependencies
~0.8–1.5MB
~32K SLoC