eth_getUserOperationByHash

Fetches user operation details by providing its hash. If the user operation is not available, it will return null. This method uses 80 credits from your daily balance.

Parameters

• userOpHash: (string) - The 32-byte hash of the user operation to retrieve.

Returns

An object containing the user operation information and transaction details, or null if the user operation is not available. When available, the response object contains:

• userOperation: (object) - The user operation object containing:
  • sender: (string) - The address of the account that initiated the user operation.
  • nonce: (string) - The nonce used for the user operation.
  • initCode: (string) - The initialization code for account creation.
  • callData: (string) - The data to pass to the sender during the main execution call.
  • callGasLimit: (string) - The amount of gas allocated for the main execution call.
  • verificationGasLimit: (string) - The amount of gas allocated for the verification step.
  • preVerificationGas: (string) - The amount of gas to compensate the bundler for pre-verification execution.
  • maxFeePerGas: (string) - Maximum fee per gas, in wei, the sender is willing to pay per gas.
  • maxPriorityFeePerGas: (string) - Maximum fee, in wei, the sender is willing to pay per gas above the base fee.
  • paymasterAndData: (string) - The paymaster address and data.
  • signature: (string) - The signature data for the user operation.
• entryPoint: (string) - The entry point contract address used.
• transactionHash: (string) - The hash of the transaction that included this user operation.
• blockHash: (string) - The hash of the block containing the transaction.
• blockNumber: (string) - The number of the block containing the transaction.

Example

Replace <YOUR-API-KEY> with an API key from your MetaMask Developer dashboard.

Request

• curl

curl https://mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getUserOperationByHash",
    "params": ["0xa5a579c6fd86c2d8a4d27f5bb22796614d3a31bbccaba8f3019ec001e001b95f"],
    "id": 1
  }'

Response

• JSON

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "userOperation": {
      "sender": "0x8C6bdb488F664EB98E12cB2671fE2389Cc227D33",
      "nonce": "0x18554d9a95404c5e8ac591f8608a18f80000000000000000",
      "initCode": "0xaee9762ce625e0a8f7b184670fb57c37bfe1d0f1296601cd000000000000000000000000417f5a41305ddc99d18b5e176521b468b2a31b86000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014c982ab3499d854fca39ff8326b27d3b8a9463c5d000000000000000000000000",
      "callData": "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",
      "callGasLimit": "0x39b2d",
      "verificationGasLimit": "0x6fb14",
      "preVerificationGas": "0xc6a0",
      "maxFeePerGas": "0x974038caf",
      "maxPriorityFeePerGas": "0x974038c95",
      "paymasterAndData": "0xe3dc822d77f8ca7ac74c30b0dffea9fcdcaaa3210000000000000000000000000000000000000000000000000000000065a3229b00000000000000000000000000000000000000000000000000000000000000009c3e8f934f2ec99974fddae7d38107a6d899c236c1b127e97d3c074cea5bb328023e295bb95254be40c47b82633676f8716c43c81aca3f2e49c2944afd1326371b",
      "signature": "0x000000003ea0a3434dfd35a9eb05c4605466a7e05a5c3fc8aaba066c83bf4b43300dfd930e2203725eafa2702f860e5b6c18b4402ffb86b0d9b9c1719f1692254039810b1b"
    },
    "entryPoint": "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    "transactionHash": "0x57465d20d634421008a167cfcfcde94847dba9d6b5d3652b071d4b84e5ce74ff",
    "blockHash": "0xeaeec1eff4095bdcae44d86574cf1bf08b14b26be571b7c2290f32f9f250c103",
    "blockNumber": "0x31de70e"
  }
}