Decentralized Snippet Storage Using IPFS

[veemakama]

• ✅ Store snippet content on IPFS while keeping ownership metadata on Stellar

• We use Helia, a modern IPFS implementation, to store snippet code off-chain

• Ownership metadata ( owner_wallet_address ) remains in the database and is still linked to your existing Stellar blockchain integration

• Added ipfs_cid column to database to map snippets to their IPFS content

• ✅ Generate and store IPFS CIDs in database

• The storeOnIPFS() function generates a CID for snippet content

• This CID is stored in the ipfs_cid column of the snippets table

• Each snippet can have its own unique IPFS CID

• ✅ Link CIDs to snippet ownership records

• CIDs are stored directly on snippet records, maintaining a 1:1 mapping

• Snippet ownership is still verified using your existing Stellar-based authentication/authorization system

• ✅ APIs for storing and fetching snippets

• Store : POST /api/snippets with storeOnIpfs: true parameter will store content on IPFS and save the CID

• Fetch by CID : GET /api/snippets/ipfs?cid=QmXYZ... retrieves content from IPFS

• Fetch by ID : GET /api/snippets/[id] still works, and now returns the ipfs_cid field if present

• Standalone IPFS storage : POST /api/snippets/ipfs can store arbitrary content on IPFS

• ✅ Validation and error handling

• Fallback mechanism: If IPFS storage fails, the snippet is still stored reliably in the database

• Proper error responses from all API endpoints

• Zod validation remains active for snippet data

• Graceful error handling in both service and API layers

• Backward compatibility: All existing API endpoints continue to work exactly as before
  Closes Decentralized Snippet Storage Using IPFS #83

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