Hardhat support

[lost-theory]

Elevator pitch:

Add support for Hardhat as a network provider in Ape.

Value:

Hardhat is an Ethereum development environment written in JavaScript that includes a JSON RPC node. We can use this endpoint as a network provider (as an alternative to existing eth-tester, Infura, and HTTP network providers). The Hardhat node has a few extra features that are useful for Ape developers, like a fork mode and snapshots (esp. useful for writing test code).

Dependencies:

N/A.

Design approach:

Should be straightforward to implement using the existing HTTP provider (EthereumProvider) and possibly looking at Brownie's hardhat support:

https://github.com/eth-brownie/brownie/blob/master/brownie/network/rpc/hardhat.py

Task list:

• [x] Add subprocess management code
• [x] Implement the basic provider and abstract methods (get balance, send transaction, etc.)
• [x] Implement the custom hardhat methods (sleep, mine, snapshot, revert, impersonate, etc.)
• [x] Tests for all of the above

Estimated completion date:

Mid August 2021.

Design review:

Do not signoff unless:

• 1) agreed the tasks and design approach will achieve acceptance, and
• 2) the work can be completed by one person within the SLA. Design reviewers should consider simpler approaches to achieve goals.

(Please leave a comment to sign off)

[fubuloubu]

Sign-off!

[lost-theory]

All set:

• https://github.com/ApeWorX/ape-hardhat
• https://pypi.org/project/ape-hardhat/