amqp-client-type-fix/lib/cjs/amqp-queue.js

AMQP 0-9-1 client, both for browsers (WebSocket) and node (TCP Socket)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AMQPQueue = void 0;
/**
 * Convience class for queues
 */
class AMQPQueue {
    /**
     * @param channel - channel this queue was declared on
     * @param name - name of the queue
     */
    constructor(channel, name) {
        this.channel = channel;
        this.name = name;
    }
    /**
     * Bind the queue to an exchange
     */
    bind(exchange, routingKey = "", args = {}) {
        return new Promise((resolve, reject) => {
            this.channel.queueBind(this.name, exchange, routingKey, args)
                .then(() => resolve(this))
                .catch(reject);
        });
    }
    /**
     * Delete a binding between this queue and an exchange
     */
    unbind(exchange, routingKey = "", args = {}) {
        return new Promise((resolve, reject) => {
            this.channel.queueUnbind(this.name, exchange, routingKey, args)
                .then(() => resolve(this))
                .catch(reject);
        });
    }
    /**
     * Publish a message directly to the queue
     * @param body - the data to be published, can be a string or an uint8array
     * @param properties - publish properties
     * @return fulfilled when the message is enqueue on the socket, or if publish confirm is enabled when the message is confirmed by the server
     */
    publish(body, properties = {}) {
        return new Promise((resolve, reject) => {
            this.channel.basicPublish("", this.name, body, properties)
                .then(() => resolve(this))
                .catch(reject);
        });
    }
    /**
     * Subscribe to the queue
     * @param params
     * @param [params.noAck=true] - if messages are removed from the server upon delivery, or have to be acknowledged
     * @param [params.exclusive=false] - if this can be the only consumer of the queue, will return an Error if there are other consumers to the queue already
     * @param [params.tag=""] - tag of the consumer, will be server generated if left empty
     * @param [params.args={}] - custom arguments
     * @param {function(AMQPMessage) : void} callback - Function to be called for each received message
     */
    subscribe({ noAck = true, exclusive = false, tag = "", args = {} } = {}, callback) {
        return this.channel.basicConsume(this.name, { noAck, exclusive, tag, args }, callback);
    }
    /**
     * Unsubscribe from the queue
     */
    unsubscribe(consumerTag) {
        return new Promise((resolve, reject) => {
            this.channel.basicCancel(consumerTag)
                .then(() => resolve(this))
                .catch(reject);
        });
    }
    /**
     * Delete the queue
     */
    delete() {
        return new Promise((resolve, reject) => {
            this.channel.queueDelete(this.name)
                .then(() => resolve(this))
                .catch(reject);
        });
    }
    /**
     * Poll the queue for messages
     * @param params
     * @param params.noAck - automatically acknowledge messages when received
     */
    get({ noAck = true } = {}) {
        return this.channel.basicGet(this.name, { noAck });
    }
    purge() {
        return this.channel.queuePurge(this.name);
    }
}
exports.AMQPQueue = AMQPQueue;
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