@etherspot/remote-signer/dist/esm/chunk-OYGOAYJB.mjs.map

Etherspot Permissioned Signer SDK - signs the UserOp with SessionKey and sends it to the Bundler

{"version":3,"sources":["../../src/sdk/base/VerifyingPaymasterAPI.ts"],"sourcesContent":["import fetch from 'cross-fetch';\nimport { UserOperation } from '../common';\nimport { resolveProperties } from '../common/utils';\nimport { BigNumber } from '../types/bignumber';\nimport { toJSON } from '../common/OperationUtils';\nimport { PaymasterAPI } from './PaymasterAPI';\nimport { calcPreVerificationGas } from './calcPreVerificationGas';\n\nconst DUMMY_SIGNATURE =\n  '0xfffffffffffffffffffffffffffffff0000000000000000000000000000000007aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa1c';\n\n// Expected EntryPoint v0.7 Paymaster Response\nexport interface PaymasterResponse {\n  result: {\n    paymaster: string;\n    paymasterData: string;\n    preVerificationGas: string;\n    verificationGasLimit: string;\n    callGasLimit: string;\n    paymasterVerificationGasLimit: string;\n    paymasterPostOpGasLimit: string;\n  }\n}\n\nexport class VerifyingPaymasterAPI extends PaymasterAPI {\n  private paymasterUrl: string;\n  private entryPoint: string;\n  private context: any;\n  constructor(paymasterUrl: string, entryPoint: string, context: any) {\n    super();\n    this.paymasterUrl = paymasterUrl;\n    this.entryPoint = entryPoint;\n    this.context = context;\n  }\n\n  async getPaymasterData(userOp: Partial<UserOperation>): Promise<PaymasterResponse> {\n    // Hack: userOp includes empty paymasterData which calcPreVerificationGas requires.\n    try {\n      // userOp.preVerificationGas contains a promise that will resolve to an error.\n      await resolveProperties(userOp);\n      // eslint-disable-next-line no-empty\n    } catch (_) { }\n    let pmOp: Partial<UserOperation>;\n    if (userOp.factoryData !== \"0x\") {\n      pmOp = {\n        sender: userOp.sender,\n        nonce: userOp.nonce,\n        factory: userOp.factory,\n        factoryData: userOp.factoryData,\n        callData: userOp.callData,\n        callGasLimit: userOp.callGasLimit,\n        verificationGasLimit: userOp.verificationGasLimit,\n        maxFeePerGas: userOp.maxFeePerGas,\n        maxPriorityFeePerGas: userOp.maxPriorityFeePerGas,\n        signature: DUMMY_SIGNATURE,\n      };\n    } else {\n      pmOp = {\n        sender: userOp.sender,\n        nonce: userOp.nonce,\n        factoryData: userOp.factoryData,\n        callData: userOp.callData,\n        callGasLimit: userOp.callGasLimit,\n        verificationGasLimit: userOp.verificationGasLimit,\n        maxFeePerGas: userOp.maxFeePerGas,\n        maxPriorityFeePerGas: userOp.maxPriorityFeePerGas,\n        signature: DUMMY_SIGNATURE,\n      }\n    }\n    const op = await resolveProperties(pmOp);\n    op.preVerificationGas = calcPreVerificationGas(op);\n\n    // Ask the paymaster to sign the transaction and return a valid paymasterData value.\n    const paymasterData = await fetch(this.paymasterUrl, {\n      method: 'POST',\n      headers: {\n        'Accept': 'application/json',\n        'Content-Type': 'application/json',\n      },\n      body: JSON.stringify({ method: 'pm_sponsorUserOperation', params: [await toJSON(op), this.entryPoint, this.context], jsonrpc: '2', id: 2 }),\n    })\n      .then(async (res) => {\n        const response = await await res.json();\n        if (response.error) {\n          throw new Error(response.error);\n        }\n        // Since the value of paymasterVerificationGasLimit is defined by the paymaster provider itself, it could be number in string\n        if (response.result && response.result.paymasterVerificationGasLimit) \n          response.result.paymasterVerificationGasLimit = BigNumber.from(response.result.paymasterVerificationGasLimit).toHexString()\n        return response\n      })\n      .catch((err) => {\n        throw new Error(err.message);\n      })\n\n    return paymasterData;\n  }\n}\n\nexport const getVerifyingPaymaster = (paymasterUrl: string, entryPoint: string, context: any) =>\n  new VerifyingPaymasterAPI(paymasterUrl, entryPoint, 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