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/ TransactionDelegate.sol
Last active
May 23, 2018 20:31
— forked from backus/EthedIn.sol
Example #1 for "How to make a user friendly Ethereum dApp"
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| // Transaction Delegation is a generic way to enable transactions to be signed by one ethereum account | |
| // and be sent by a different account. Enabling improved UX patterns where users of an application | |
| // do not need to pay for transaction gas and do not necessarily need to have any ether at all to | |
| // interact with an application. | |
| // | |
| // To delegate a transaction, a user A creates a transaction and signs the hash keccak256(calldata, nonce). | |
| // The calldata and signature v, r, s is then communicated to user B who will submit the transaction on | |
| // their behalf. User B submits the transaction by calling `TransactionDelegate.delegatedTxn`. | |
| // | |
| // This contract requires elevated privledges to the target contract allowing it to submit transactions |