@o3r/dynamic-content/middlewares/parameter-extractor-middleware.js

This module provides a mechanism to retrieve media and data depending on the host or a server specific url.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.setup = setup;
// eslint-disable-next-line @typescript-eslint/ban-ts-comment -- requires NodeNext module resolution
// @ts-ignore
const cheerio = require("cheerio");
// eslint-disable-next-line @typescript-eslint/ban-ts-comment -- no type are provided for express-interceptor
// @ts-ignore
const expressInterceptor = require("express-interceptor");
const querystring = require("node:querystring");
let previousPostParams = {};
const middleware = () => expressInterceptor((req, res) => ({
    isInterceptable: () => /text\/html/.test(res.get('Content-Type')),
    intercept: (body, send) => {
        // Burn query and post parameters in a script inside index.html
        const file = cheerio.load(body);
        file('body').attr('data-query', JSON.stringify(req.query));
        file('body').attr('data-post', JSON.stringify(previousPostParams));
        // Remove previously stored parameters
        previousPostParams = {};
        send(file.html());
    }
}));
/**
 * Set up application
 * @param app
 */
function setup(app) {
    app.post('*', (req, res) => {
        // Retrieve Body Params and convert to map
        let data = '';
        req.on('data', (chunk) => (data += chunk.toString()));
        req.on('end', () => (previousPostParams = querystring.parse(data)));
        res.redirect(req.originalUrl);
    });
    app.use(middleware());
}
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