heroku-kafka/dist/lib/fetcher.js

heroku plugin to manage heroku kafka

import debug from './debug.js';
import { attachment as attachmentResolver } from './resolve.js';
const DEFAULT_ADDON_NAME = 'heroku-kafka';
function addonName() {
    if (process.env.HEROKU_KAFKA_ADDON_NAME) {
        return process.env.HEROKU_KAFKA_ADDON_NAME;
    }
    return DEFAULT_ADDON_NAME;
}
function isKafka(addon) {
    const slug = addon.plan.name.split(':')[0];
    return slug === addonName();
}
export default (heroku) => {
    async function addon(app, cluster = 'KAFKA_URL') {
        debug(`fetching ${cluster} on ${app}`);
        const attachment = await attachmentResolver(heroku, app, cluster, {});
        return attachment.addon;
    }
    async function all(app) {
        debug(`fetching all clusters on ${app}`);
        const { body: attachments } = await heroku.get(`/apps/${app}/addon-attachments`, {
            headers: { 'Accept-Inclusion': 'addon:plan' },
        });
        let addons = attachments.map(a => a.addon);
        addons = addons.filter(a => isKafka(a));
        addons = uniqueByProperty(addons, 'id');
        return addons;
    }
    return {
        addon,
        all,
    };
};
function uniqueByProperty(array, property) {
    const seen = new Map();
    return array.filter(item => {
        const value = item[property];
        if (!seen.has(value)) {
            seen.set(value, true);
            return true;
        }
        return false;
    });
}