ethers-tools/src/errors/contracts-errors.js

Contains tools for work with web3 contracts.

export const CONTRACTS_ERRORS = {
  NON_CALLABLE_CONTRACT_INVOCATION: new Error(
    'The contract was created as non-callable, but an attempt was made to call it!'
  ),
  READ_ONLY_CONTRACT_MUTATION: new Error(
    'The contract was created as read-only, but an attempt was made to call mutable method!'
  ),
  MISSING_CONTRACT_ADDRESS: new Error('A contract address was not provided!'),
  METHOD_NOT_DEFINED: (methodName) =>
    new Error(`Method "${methodName}" was not found on the contract!`),
  FRAGMENT_NOT_DEFINED: (methodName) =>
    new Error(
      `Fragment for method "${methodName}" was not found on the contract!`
    ),
  MISSING_WEBSOCKET_PROVIDER: new Error(
    'Attempted to listen for contract events, but no WebSocketProvider was provided!'
  ),
  MISSING_PROVIDER: new Error('A provider is required, but none was provided!'),
  ESTIMATE_STATIC_CALL: (methodName) =>
    new Error(
      `Cannot estimate gas for static (view/pure) method "${methodName}"!`
    ),
};