Uniswap · Schema

Encode4337Response

Response containing the encoded ERC-4337 UserOperation with gas and sponsorship details.

BlockchainCryptocurrencyDeFiDecentralized ExchangeLiquiditySwaps

Properties

Name	Type	Description
requestId	string	Unique identifier for this request.
userOperation	object
sponsorMetadata	object
gasSponsored	boolean	Whether gas for this operation is sponsored by a paymaster.
gasSponsorshipRejectionReason	string	Reason gas sponsorship was not granted. Present only when `gasSponsored` is `false`.

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/uniswap/refs/heads/main/json-schema/uniswap-encode4337-response-schema.json",
  "title": "Encode4337Response",
  "description": "Response containing the encoded ERC-4337 UserOperation with gas and sponsorship details.",
  "type": "object",
  "properties": {
    "requestId": {
      "type": "string",
      "description": "Unique identifier for this request."
    },
    "userOperation": {
      "$ref": "#/components/schemas/UserOperation"
    },
    "sponsorMetadata": {
      "$ref": "#/components/schemas/Encode4337SponsorMetadata"
    },
    "gasSponsored": {
      "type": "boolean",
      "description": "Whether gas for this operation is sponsored by a paymaster."
    },
    "gasSponsorshipRejectionReason": {
      "type": "string",
      "description": "Reason gas sponsorship was not granted. Present only when `gasSponsored` is `false`."
    }
  },
  "required": [
    "requestId",
    "userOperation",
    "gasSponsored"
  ]
}