@golevelup/nestjs-rabbitmq/lib/amqp/utils.js

Badass RabbitMQ addons for NestJS

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.converUriConfigObjectsToUris = exports.validateRabbitMqUris = exports.matchesRoutingKey = void 0;
function matchesRoutingKey(routingKey, pattern) {
    // An empty string is a valid pattern therefore
    // we should only exclude null values and empty array
    if (pattern === undefined || (Array.isArray(pattern) && pattern.length === 0))
        return false;
    const patterns = Array.isArray(pattern) ? pattern : [pattern];
    for (const p of patterns) {
        if (routingKey === p)
            return true;
        const splitKey = routingKey.split('.');
        const splitPattern = p.split('.');
        let starFailed = false;
        for (let i = 0; i < splitPattern.length; i++) {
            if (splitPattern[i] === '#')
                return true;
            if (splitPattern[i] !== '*' && splitPattern[i] !== splitKey[i]) {
                starFailed = true;
                break;
            }
        }
        if (!starFailed && splitKey.length === splitPattern.length)
            return true;
    }
    return false;
}
exports.matchesRoutingKey = matchesRoutingKey;
/**
 * Validates a rabbitmq uri
 * @see https://www.rabbitmq.com/docs/uri-spec#the-amqps-uri-scheme
 * @param uri
 * @returns
 */
const validateRabbitMqUris = (uri) => {
    for (const u of uri) {
        const rmqUri = new URL(u);
        if (!rmqUri.protocol.startsWith('amqp')) {
            throw new Error('RabbitMQ URI protocol must start with amqp or amqps');
        }
    }
};
exports.validateRabbitMqUris = validateRabbitMqUris;
const converUriConfigObjectsToUris = (uri) => {
    const uris = [uri].flat();
    return uris.map((u) => {
        if (typeof u == 'string')
            return u;
        return amqplibUriConfigToUrl(u);
    });
};
exports.converUriConfigObjectsToUris = converUriConfigObjectsToUris;
const amqplibUriConfigToUrl = ({ hostname, username, password, frameMax, heartbeat, vhost, protocol = 'amqp', port = 5672, }) => {
    if (!hostname) {
        throw new Error("Configuration object must contain a 'hostname' key.");
    }
    const auth = username && password
        ? `${encodeURIComponent(username)}:${encodeURIComponent(password)}@`
        : '';
    const params = new URLSearchParams();
    if (frameMax)
        params.set('frameMax', frameMax.toString());
    if (heartbeat)
        params.set('heartbeat', heartbeat.toString());
    return `${protocol}://${auth}${hostname}:${port}${vhost !== null && vhost !== void 0 ? vhost : ''}${params.size == 0 ? '' : `?${params.toString()}`}`;
};
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