LeetCode API

Overview

This project provides a working Node.js API to interact with LeetCode's public GraphQL API, focusing on fetching submission calendars and other user statistics. The API simplifies querying LeetCode's data by providing structured endpoints.

Features

• Fetch user profile information from LeetCode
• Retrieve submission statistics and calendar data
• Simplified GraphQL querying through a RESTful API

Technologies Used

• Node.js
• Express.js
• GraphQL
• Fetch API

Installation

1. Clone the repository:

   git clone https://github.com/faisal-shohag/leetcode_api.git

2. Navigate to the project directory:

   cd leetcode_api

3. Install the dependencies:

   npm install

Usage

1. Start the server:

   node index.js

2. Access the API at http://localhost:3000/yourLeetcodeUsername

API Endpoint

• GET /:username - Fetches the LeetCode profile and submission data for the specified username.

Example Response

{
  "totalSolved": 43,
  "totalSubmissions": [
    {
      "difficulty": "All",
      "count": 58,
      "submissions": 116
    },
    {
      "difficulty": "Easy",
      "count": 15,
      "submissions": 34
    },
    {
      "difficulty": "Medium",
      "count": 33,
      "submissions": 54
    },
    {
      "difficulty": "Hard",
      "count": 10,
      "submissions": 27
    }
  ],
  "totalQuestions": 2738,
  "easySolved": 12,
  "totalEasy": 686,
  "mediumSolved": 21,
  "totalMedium": 1449,
  "hardSolved": 10,
  "totalHard": 603,
  "ranking": 1139392,
  "contributionPoint": 217,
  "reputation": 28067,
  "submissionCalendar": {
    "1664323200": 1,
    "1664496000": 1,
    "1664755200": 4,
    "1664841600": 5,
    "1667865600": 3,
    "1678060800": 1
  }
}

Project Structure

• index.js -Main server file that sets up the Express server and API routes.
• leetcode.js -Contains the logic for interacting with LeetCode's GraphQL API.
• package.json - Project metadata and dependencies.

Demo

You can view a live demo of the project here. (Please note that it may take a few seconds for the server to wake up.)

Contributing

Contributions are welcome! Please feel free to submit a pull request or open an issue to discuss improvements or bugs.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Contact

• Author: Faisal Shohag
• Email: faisalshohagprog@gmail.com
• LinkedIn: faisal-shohag
• GitHub: faisal-shohag