@webda/amqp/lib/queue.js

Implements AMQP on webda

import { JSONUtils, Queue, QueueParameters } from "@webda/core";
import * as amqplib from "amqplib";
export class AMQPQueueParameters extends QueueParameters {
}
/**
 * Implements a Queue stored in AMQP
 *
 * @WebdaModda
 */
export default class AMQPQueue extends Queue {
    /**
     * @override
     */
    loadParameters(params) {
        return new AMQPQueueParameters(params);
    }
    /**
     * @override
     */
    async init() {
        await super.init();
        this.conn = await amqplib.connect(this.parameters.url);
        this.channel = await this.conn.createChannel();
        await this.channel.assertQueue(this.parameters.queue, this.parameters.queueOptions);
        return this;
    }
    /**
     * @override
     */
    async sendMessage(event) {
        await this.channel.sendToQueue(this.parameters.queue, Buffer.from(JSONUtils.stringify(event)));
    }
    /**
     * @override
     */
    async receiveMessage(proto) {
        let msg = await this.channel.get(this.parameters.queue);
        if (msg === false) {
            return [];
        }
        return [
            {
                ReceiptHandle: msg,
                Message: this.unserialize(msg.content.toString(), proto)
            }
        ];
    }
    /**
     * @override
     */
    async deleteMessage(id) {
        await this.channel.ack(id);
    }
    /**
     * @override
     */
    async size() {
        return (await this.channel.assertQueue(this.parameters.queue)).messageCount;
    }
    async ___cleanData() {
        await this.channel.purgeQueue(this.parameters.queue);
    }
}
//# sourceMappingURL=queue.js.map