@das3mical/adonis-mercure/build/src/publisher.js

Mercure Hub integration for AdonisJS v6 — publish real-time updates via Server-Sent Events (SSE)

import { MercurePublishError } from './errors/publish_error.js';
import { MercureTimeoutError } from './errors/timeout_error.js';
const DEFAULT_TIMEOUT = 5000;
export class Publisher {
    #config;
    constructor(config) {
        this.#config = config;
    }
    async publish(topics, data = {}, options = {}) {
        const topicList = Array.isArray(topics) ? topics : [topics];
        const form = new URLSearchParams();
        for (const topic of topicList) {
            form.append('topic', topic);
        }
        form.append('data', JSON.stringify(data));
        if (options.private)
            form.append('private', 'on');
        if (options.id)
            form.append('id', options.id);
        if (options.type)
            form.append('type', options.type);
        if (options.retry !== undefined)
            form.append('retry', String(options.retry));
        const timeout = this.#config.http?.timeout ?? DEFAULT_TIMEOUT;
        const controller = timeout > 0 ? new AbortController() : null;
        const timer = controller ? setTimeout(() => controller.abort(), timeout) : null;
        try {
            const response = await fetch(this.#config.endpoint, {
                method: 'POST',
                headers: {
                    'Authorization': `Bearer ${this.#config.adminToken}`,
                    'Content-Type': 'application/x-www-form-urlencoded',
                },
                body: form.toString(),
                signal: controller?.signal,
            });
            if (!response.ok) {
                const body = await response.text();
                throw new MercurePublishError(response.status, body);
            }
            return response;
        }
        catch (err) {
            if (err?.name === 'AbortError') {
                throw new MercureTimeoutError(timeout);
            }
            throw err;
        }
        finally {
            if (timer)
                clearTimeout(timer);
        }
    }
}