@colony/purser-metamask/es/methodLinks.js.flow

A javascript library to interact with a Metamask based Ethereum wallet

/* @flow */

import type {
  getTransactionMethodType,
  signMessageMethodType,
  signTrasactionMethodType,
  verifyMessageMethodType,
} from './flowtypes';

/*
 * This is just to provide a nicer function name to the injected metamask
 * methods that we call.
 *
 * This assumes you do detection before trying to call them.
 */

/**
 * @method getTransaction
 */
export const getTransaction: getTransactionMethodType = (...args) =>
  global.web3.eth.getTransaction(...args);

/**
 * Sign a message. Is a wrapper for web3.personal.sign
 *
 * @method signMessage
 */
export const signMessage: signMessageMethodType = (...args) =>
  global.web3.eth.personal.sign(...args);

/**
 * Sign transaction. Is a wrapper for web3.eth.signTransaction
 *
 * This not only signs, but also sends the transaction, we can't have it any
 * other way with metamask (for the time being at least...)
 *
 * @method signTransaction
 */
export const signTransaction: signTrasactionMethodType = (...args) =>
  global.web3.eth.sendTransaction(...args);

/**
 * Verify a signed message. Is a wrapper for web3.personal.ecRecover
 *
 * This takes in a message and a signature, and tries to recover the address
 * that initially signed this message. You than have to compare it to the
 * current address.
 *
 * @method verifyMessage
 */
export const verifyMessage: verifyMessageMethodType = (...args) =>
  global.web3.eth.personal.ecRecover(...args);