apeman-app-dynamic/lib/create.js

/**
 * apeman app to serve dynamic contents.
 * @memberof module:apeman-app-dynamic/lib
 * @function create
 * @param {object} [options] - Optional settings.
 * @param {object} [options.form] - Options for apeman-app-form
 * @param {object} [options.header] - Options for apeman-app-header
 * @param {object} [options.json] - Options for apeman-app-json
 * @param {object} [options.lang] - Options for apeman-app-lang
 * @param {object} [options.query] - Options for apeman-app-query
 * @returns {function} - Defined app function.
 */

"use strict";

const argx = require('argx'),
    async = require('async'),
    objnest = require('objnest');

const middlewares = require('./middlewares');

const debug = require('debug')('apeman:app:dynamic');

/** @lends create */
function create(options) {
    let args = argx(arguments);
    options = objnest.expand(args.pop('object') || {});

    let handlers = Object.keys(middlewares).map((key) => {
        let mw = middlewares[key];
        return mw.module(options[key] || {});
    });

    /**
     * Defined app.
     * @function app
     * @param {object} req - Request object.
     * @param {object} res - Response object.
     * @param {function} next - Pass to next handler.
     */
    function app(req, res, next) {
        async.eachSeries(handlers, (handler, next) => {
            handler(req, res, next);
        }, next);
    }

    // Description of this app.
    app.$desc = "Add dynamic content handlers.";
    return app;
}

module.exports = create;