Receive Kit

Easily receive, validate, and further process data from share-kit.

Summary

Receive-kit implements a single HTTP POST handler endpoint at /api/receive. Requests should contain a JSON body structured like the ResponseData documented in share-kit. Assuming the request structure if valid, the handler then performs the following validations:

• Basic off-chain data:
  • Validate the shared subject ethereum address matches the address recovered based on the shared packedData and signature.
  • Validate that we're able to recreate the shared packedData value by hashing the JSON representation of the shared data and token.
• Per node off-chain data:
  • Validate the hash of the shared rootHash and rootHashNonce matches the shared layer2Hash.
  • Validate the shared attester ethereum address matches the address recovered based on the hash of the shared attestation node and its signature.
  • Validate the merkle proof.
• On-chain data:
  • Validate the shared data hash matches the hash that is on-chain for the shared transaction hash.
  • Validate the shared subject ethereum address matches the address that is on-chain for the shared transaction hash.
  • Validate the shared attester ethereum address matches the address that is on-chain for the shared transaction hash.

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