Implement getTransactionReceipt RPC

[troggy]

Bounty

It is required for both web3 and ethers to observe transaction after sending (e.g. with web3.eth.sendTransaction, web3.eth.sendSignedTransaction and others).

The ultimate goal is to have sending methods to return proper PromiEvent for Web3 and proper TransactionResponse with working wait() function for Ethers. Both require getTransactionReceipt: web3, ethers. However, for websocket provider newBlockHeader subscription might also be needed (see #255, out of scope for this bounty)

Scope

• implement getTransactionReceipt JSON RPC in leap-node. Should be compatible with Web3 and Ethers
• verify it works at least with HTTP provider

Deliverables

• updated leap-node
• updated leap-core (at least typedef's will need to be changed)
• updated integration tests using the new leap-node
• updated docs at docs.leapdao.org

Gain for the project

• allows to use familiar and robust approach to get/wait for status of the tx after sending

Publicly visible delivery

• updated docs at docs.leapdao.org

Size

M
Poker: https://leapdao.slack.com/archives/CAAGW85BR/p1556110873002700

Roles

bounty gardener: @troggy / 10%
bounty worker: @troggy / 70%
bounty reviewer: @sunify / 20%

[troggy]

Implementation (should be merged in this order):

• feat: add to/from/value getters to Transaction class leap-core#127
• tests: fix for newer leap-core with to/from/value in toJSON() #299
• feat: allow to sendTransaction and get TransactionReceipt leap-provider#1
• feat: return proper transaction receipt #293
• feat: add Use Ethers.js page docs#37