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bailicangdu/node-elm

★ 12,359JavaScriptAudience · developerComplexity · 3/5LicenseSetup · moderate

TLDR

A Node.js learning project that recreates the Ele.me food delivery app backend with 60+ API endpoints covering users, restaurants, orders, carts, and an admin panel.

Mindmap

mindmap
  root((node-elm))
    What it does
      Food delivery API
      60+ endpoints
    Tech stack
      Node.js
      Express
      MongoDB
    Features
      User auth
      Restaurant browse
      Order management
      Admin panel
    Audience
      Learning developers
      Full-stack students
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Things people build with this

USE CASE 1

Study how to build a complete food delivery REST API with Node.js, Express, and MongoDB by reading working code.

USE CASE 2

Pair with the companion frontend project to run a full-stack Ele.me clone locally and trace requests from UI to database.

USE CASE 3

Learn how features like distance-based restaurant filtering, coupon codes, and order management are implemented in an Express backend.

Tech stack

JavaScriptNode.jsExpressMongoDB

Getting it running

Difficulty · moderate Time to first run · 30min

Requires MongoDB installed locally and importing the provided database backup file to get realistic sample data.

Open source under the GPL, you can use and modify it but must share changes under the same license. The author also requests it not be used for commercial purposes.

In plain English

node-elm is a personal practice project that recreates the backend server for a Chinese food delivery app similar to the public Ele.me platform. The author built it to match the same API structure that the real Ele.me app uses, making it a companion to a separately published frontend project that mimics the Ele.me user interface. The backend is built with Node.js (a JavaScript runtime for servers), Express (a framework for handling web requests), and MongoDB (a database). It provides more than 60 API endpoints covering everything a food delivery app needs: user registration and login, browsing restaurants, filtering and sorting by distance or rating, adding items to a cart, placing orders, managing delivery addresses, applying coupon codes, and an admin panel for managing restaurants and food items. The project is intended as a learning reference, not a commercial product. It was developed on macOS and deployed on an Alibaba Cloud server running CentOS. A downloadable database backup file is provided so that anyone cloning the project can populate it with sample restaurant and food data and see the app working with realistic content. The README is written in Chinese. The author notes that the project is purely a personal experiment and should not be used for any commercial purpose. The code is licensed under the GPL.

Copy-paste prompts

Prompt 1
Based on the node-elm API structure, show me how to implement a restaurant-search endpoint in Express that filters by distance and rating using MongoDB geospatial queries.
Prompt 2
I cloned node-elm and imported the sample database backup. How do I start the server and test the user registration endpoint with Postman?
Prompt 3
How does node-elm structure its Express routes and MongoDB models for the order placement flow from cart to checkout?
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