pm_getPaymasterStubData

pm_getPaymasterStubData

This endpoint returns the stub values to be used in paymaster-related fields of an usigned user operarion for gas estimation.

Parameters

Body

Param	Type	Description	Required
method	string	Name of method in this case: pm_getPaymasterStubData	Required
params	array	Unsigned user operation, entrypoint address, chain id and a context object	Required
id	string	id for request determined by client for JSON RPC requests	Required
jsonrpc	string	JSON RPC version in this case 2.0	Required

info

The context object for Biconomy Paymaster service should be exactly the second element of the params object that is supported on pm_sponsorUserOperation

Request

{
  "method": "pm_getPaymasterStubData",
  "params": [
        {
      "sender": "0x5A927A01a32cE02AF4B438b7848BceBc52C8Ea3e",
      "nonce": "0x1a",
      "initCode": "0x",
      "callData": "0x0000189a0000000000000000000000001758f42af7026fbbb559dc60ece0de3ef81f665e00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000002440d097c30000000000000000000000005a927a01a32ce02af4b438b7848bcebc52c8ea3e00000000000000000000000000000000000000000000000000000000",
      "maxFeePerGas": "0x05f5e100",
      "maxPriorityFeePerGas": "0",
      "verificationGasLimit": "0x01536f",
      "callGasLimit": "0x012da1",
      "preVerificationGas": "0x0bcb43",
    }, // unsigned user operation
    "0x5ff137d4b0fdcd49dca30c7cf57e578a026d2789", // entry point address
    "0x2105", // chain id
    {
      "mode": "SPONSORED",
      "calculateGasLimits": true,
      "expiryDuration": 300 // duration (secs) for which the generate paymasterAndData will be valid. Default duration is 300 secs.
      "sponsorshipInfo": {
        "webhookData": {},
        "smartAccountInfo": {
            "name": "BICONOMY",
            "version": "2.0.0"
        }
      }
    }
  ],
  "id": 1693369916,
  "jsonrpc": "2.0"
}

Response

{
  "jsonrpc": "2.0",
  "id": 1693369916,
  "result": {
    // The ERC-7677 spec asks to return a sponsor obejct which will be added in future
    "paymasterAndData": "0xabc..."
  }
}