KoinX Assignment

Overview

This project fetches cryptocurrency data from the CoinGecko API and stores it in a MongoDB database. It includes scheduled tasks to update prices at regular interval of 2 hours and provides endpoints to fetch the latest prices and calculate standard deviation.

---

How to Start the Server

1. Clone the repository:

   git clone https://github.com/Aditya8840/Crypto

2. Navigate to the project directory:

   cd Crypto

3. Install the dependencies:

   npm install

4. Start the server:

   npm start

---

Technologies Used

• Axios: For making API calls to the CoinGecko API.
• Cron: For scheduling tasks, such as fetching and updating cryptocurrency prices at regular interval of 2 hours.
• Winston: For efficient and customizable logging.
• Mongoose: As an ORM (Object Relational Mapper) to interact with MongoDB.
• Glob: For dynamically loading all JavaScript files in specific directories, enabling modular design and reducing manual imports.

---

Endpoints

1. Get Latest Prices

Request:

GET /api/stats?coin=bitcoin

Response:

{
  "status": 200,
  "message": "Success",
  "data": {
    "price": 95387.74265127412,
    "marketCap": 1889217818626.9343,
    "24hChange": 2.730761761674287
  }
}

---

2. Get Standard Deviation of Last 100 Prices

Request:

GET /api/deviation?coin=bitcoin

Response:

{
  "status": 200,
  "message": "Success",
  "data": {
    "deviation": 244.12672027653105
  }
}

---

Notes

• Ensure to create a .env file in the project root directory with your MongoDB URL and CoinGecko API key.
• You can take reference from the provided .env.example file for the required format and variables.

---