API: decorators

Source: messaging/decorators.ts

@Listener decorator Marks an entire class as a listener

introduced in TypeScript 5.0, which expects a ClassDecoratorContext object.

Usage

// ----------------
// OrderListener.ts
// ----------------

import { Listener } from "sdk/messaging";

@Listener({
    name: "sample-listener-decorator/OrderListener",
    kind: "queue"
})
export class OrderListener {
    public static onMessage(message: string) {
        console.log("Processing message event:", message);
    }

    public static onError(error: string) {
        console.log("Processing error event:", error);
    }
}

export function onMessage(message: string) {
    OrderListener.onMessage(message);
};

export function onError(error: string) {
    OrderListener.onError(error);
};


// -----------------------
// OrderListenerTrigger.ts
// -----------------------

let producer = require('messaging/producer');
let message = "[ I am a message created at: " + new Date() + " ]";
producer.queue("sample-listener-decorator/OrderListener").send(message);
console.log("Hello from the OrderListener Trigger! Message: " + message);