Install Necessary Packages
- First, ensure you have Node.js and npm installed on your machine. You will need to use npm to manage your project dependencies.
- Create a new Node.js project if you haven't already by running
npm init and follow the prompts. This will generate a package.json file in your directory.
- Install the
axios package to handle HTTP requests. You can do this by running the command npm install axios.
Set Up Your Nomics API Key
- Add your Nomics API key as an environment variable to keep it secure. You can use a package like
dotenv to manage your environment variables. Install it using npm install dotenv.
- Create a
.env file in your project root and add your API key:
NOMICS_API_KEY=your_api_key_here
Create a Function to Fetch Market Data
- Create a new JavaScript file, e.g.,
fetchData.js, in your project directory where you will write the code to access the Nomics API.
- Require the necessary modules:
axios for HTTP requests and dotenv to manage environment variables.
require('dotenv').config();
const axios = require('axios');
async function fetchMarketData() {
const url = `https://api.nomics.com/v1/currencies/ticker?key=${process.env.NOMICS_API_KEY}&interval=1d,30d&convert=USD&per-page=100&page=1`;
try {
const response = await axios.get(url);
console.log(response.data);
} catch (error) {
console.error('Error fetching data from Nomics:', error);
}
}
fetchMarketData();
Understand the API Request
- Replace the query parameters in the URL to customize the API request. Key parameters include:
<li><code>key</code>: Your Nomics API key.</li>
<li><code>interval</code>: The frequency of returned data points (e.g., <code>1d</code> for daily or <code>1h</code> for hourly).</li>
<li><code>convert</code>: The currency in which to convert the market data (e.g., <code>USD</code>).</li>
<li><code>per-page</code> and <code>page</code>: Control the number of datapoints per page and the page number, respectively.</li>
Run Your Application
- Open your terminal and run the command
node fetchData.js to execute your script. This will call the Nomics API and output the market data in your console.
- If everything is configured correctly, you should see the fetched market data in JSON format. Use this data as required in your application.
Handle Errors and Edge Cases
- Implement error handling in your code to manage exceptions like API rate limits, server errors, or incorrect API key usage. Customize error messages to help in debugging.
- Consider cases where the API might return an incomplete response or incorrect data due to network issues or other exceptions, and handle these gracefully in your logic.
