Short nodejs script which dumps all menus for lieferando restaurants in your area, and python script which puts them crudely into a csv file for eaier inspection.

app.js

import {inspect} from 'util';

import {Takeaway, TakeawayConfig} from 'takeaway';

(async () => {
    try {
        const plz = "52080";
        const coordLNG = '50.7';
        const coordLAT = '6.0';
        // Initialize configuration
        // See `src/config.js` for defaults
        const config = new TakeawayConfig({
            language: 'de',
            url: 'https://de.citymeal.com/android/android.php'
        });

        // Initialize Takeaway API
        const takeaway = new Takeaway(config);

        // Fetch country
        const country = await takeaway.getCountryById('DE');

        // Request restaurants list for area
        const restaurants = await country.getRestaurants(plz, coordLNG, coordLAT);

        const allMenus = restaurants.map(async restaurant => {
                await restaurant.getMenu(plz);
        });
        await Promise.all(allMenus)
        console.log(JSON.stringify(restaurants));
    } catch (err) {
        console.error(err);
        console.log(JSON.stringify(restaurants));
    }
})();

format.py

import json
data = json.load(open("menuRestaurantAll.json","r"))
properData = {d["data"]["name"]:{c["data"]["name"]:[m["data"]["name"] for m in c["products"]] for c in d["categories"]} for d in data}
reversedData = [(p,c,r) for r in properData for c in properData[r] for p in properData[r][c]]
goodCSV = "\n".join([";".join([t for t in p]) for p in reversedData])
open("allMenuesCSVFlattened.csv","w").write(goodCSV)