DataFeed Subscription (Stokenet)

This page allows you to manage your DataFeed subscription on the Stokenet test network. To use the Morpher DataFeed, you need to purchase a subscription NFT.

What is a DataFeed Subscription?

A DataFeed subscription is represented by a non-fungible token (NFT) that:

1. Grants access to the DataFeed’s signed price data
2. Stores your public key for authentication
3. Tracks your subscription expiration date
4. Provides a secure way to verify your requests

How to Use Your Subscription

After purchasing a subscription, follow these steps to start using the DataFeed:

1. Generate a BLS12-381 Key Pair:

   import * as ed from '@noble/ed25519';
   import { bls12_381 as bls } from '@noble/curves/bls12-381';
    
   // Generate a secure random private key
   const privateKey = ed.utils.randomPrivateKey();
   const hexPrivateKey = ed.etc.bytesToHex(privateKey);
    
   // Derive the public key
   function getPublicKey(privateKey) {
       return Array.from(
           bls.getPublicKey(privateKey), 
           byte => byte.toString(16).padStart(2, '0')
       ).join('');
   }
    
   const publicKey = getPublicKey(privateKey);

2. Enroll Your Public Key:

   • Enter your public key in the subscription manager
   • This key will be used to authenticate your requests to the DataFeed

3. Set Up Your Backend:

   • Store your private key securely in your backend
   • Use it to sign requests to the DataFeed API
   • See the Integration Guide for details

4. Start Making DataFeed Requests:

   • Your backend can now request signed price data
   • Include this data in transaction manifests
   • Smart contracts can verify the data on-chain

Technical Details

The subscription NFT contains the following data:

• Expiration Time: When your subscription expires
• Authorized Public Key: Your BLS12-381 public key
• Current Nonce: Tracks the number of requests made
• Maximum Nonce: The maximum number of requests allowed

For more technical details on how to integrate with the DataFeed, see the Integration Guide.