# Aurora Update [2021-05-28]

The recording is available at:
https://www.youtube.com/watch?v=IkcNjk_EKT0&list=PL9tzQn_TEuFV2O7twBM-41lCDq5nr8nLm

## Summary
- NEAR transfers to Ethereum:
- https://aurora.dev/blog/near-on-ethereum
- https://twitter.com/auroraisnear/status/1398264888355610625
- ETH connector to be deployed to TestNet today (without NEAR->Ropsten transfers)
- New tutorials: MetaMask, Remix, and Truffle
- https://doc.aurora.dev/develop/start/metamask
- https://doc.aurora.dev/develop/start/truffle

## Agenda
- Status & current goal
- This week
- Discussion
- eNEAR launch
- ETH connector deployment
- Math API additions
- Next week

## Status & current goal

## Last week
https://hackmd.io/@avshevchenko/rJUHr0NFu

## This week

### Ahmed Ali
- Troubleshooting with Arto
- Running RPC relayer locally and fixing this config files https://github.com/aurora-is-near/aurora-relayer/pull/14
- Fixing the `eth_call` issue https://github.com/aurora-is-near/aurora-relayer/commit/1d0d7cd7f00da1f0d118e8a79cfc70362ed773f2
- Troubleshooting Remix + MetaMask issue
- Truffle PR https://github.com/aurora-is-near/doc.aurora.dev/pull/12
- HardHat PR [WIP]

### Alex Shevchenko
- Investor round
- eNEAR launch management
- Bridge support
- Hiring of Senior engineer, Aurora position

### Arto Bendiken
- Supported partners and early adopters, troubleshooting and fixing a number of issues.
- Reviewed and improved documentation additions.
- https://github.com/aurora-is-near/doc.aurora.dev
- Lots of work on the Aurora Relayer:
- Improved and documented the Docker set up and supported Ahmed's testing.
- Now a turn-key solution: just pull the container and run it.
- https://github.com/aurora-is-near/aurora-relayer
- Lots of work on infrastructure:
- Upgraded all existing relayer deployments to use the Docker image.
- Stood up a standalone proxy server for the legacy endpoints.
- Installed and prepped new servers for the roll-out of edge endpoints.
- Surveyed and evaluated open-source block explorers:
- There are BlockScout, Ethereum Lite Explorer, EthVM, Expedition, and then a long tail of more problematic projects.
- BlockScout is clearly the best in class, but also the operationally most complex.

### Evgeny Kapun
- More work on host functions (Math API)

### Evgeny Ukhanov
Currently eth-connector ready for the Release. Covered maximum test cases and fix security issues that were found.
* Merged functionality related to Statistics
* Merged eth-connector enhancements after review.
* Extended integrations tests with additional Proofs for all possible cases.
* Fixed test bugs and extended for broad test coverage.
* PR reviews

PR's:
* https://github.com/aurora-is-near/aurora-engine/pull/98
* https://github.com/aurora-is-near/aurora-engine/pull/104
* https://github.com/aurora-is-near/aurora-engine/pull/106
* https://github.com/aurora-is-near/aurora-engine/pull/59

### Frank Braun

- `near-api-go` extended with `CreateAccount()`, `near create-account` funtionality reimplemented in Go => removed `near-cli` dependency completely
- `evm-bully replay -setup` sets up clean `nearcore` state for replay, starts `neard`, creates account, deploys contract.
- If "breakpoint" is set, all necessary state for reproducability is saved in tar file (HEAD of nearcore and aurora-engine, local nearcore state, account key, failing tx)
- new `evm-bully replay-tx` command takes breakpoint state and reproduces an error:
- with `-build` checks out and builds correct `nearcore` and `aurora-engine` version.
- automatically starts `neard`
- replays failing tx (doesn't need `geth` or Ethereum blockchain)
- contract code can be overwritten to debug engine (reproduce problem -> change contract until fixed).

### Joshua J. Bouw
- Spent a considerable amount of time getting gas costs of the new Math API methods. Had calls and worked collaberative with Michael.
- Work handed off to capable team familiar with it.
- Added estimated gas values to Math API. [nearcore#9d84a33](https://github.com/near/nearcore/pull/3954/commits/9d84a334bd10c04d78253d26490d7b65e3a9f401)
- Added tests to MathAPI [nearcore#4a1c26e](https://github.com/near/nearcore/pull/3954/commits/4a1c26e1996eaac58bbb7e0ec4ac4f2946a5c4e7), [nearcore#bcc7dd2](https://github.com/near/nearcore/pull/3954/commits/bcc7dd2538030b2fd94d9e1a633d383ec888c1f5)
- Reviewed [aurora-engine#104](https://github.com/aurora-is-near/aurora-engine/pull/104)
- Reviewed [aurora-engine#103](https://github.com/aurora-is-near/aurora-engine/pull/103)

### Kirill Abramov
- PRs:
- Created [rainbow-bridge#589](https://github.com/aurora-is-near/rainbow-bridge/pull/589)
- Created [eth-connector#20](https://github.com/aurora-is-near/eth-connector/pull/20)
- Created [aurora-engine#108](https://github.com/aurora-is-near/aurora-engine/pull/108)
- Created [aurora-engine#109](https://github.com/aurora-is-near/aurora-engine/pull/109)
- Committed to [aurora-engine#88](https://github.com/aurora-is-near/aurora-engine/pull/88)
- Reviewed [aurora-engine#59](https://github.com/aurora-is-near/aurora-engine/pull/59)
- Reviewed [aurora-engine#104](https://github.com/aurora-is-near/aurora-engine/pull/104)
- Reviewed [aurora-engine#106](https://github.com/aurora-is-near/aurora-engine/pull/106)
- Reviewed [aurora-engine#107](https://github.com/aurora-is-near/aurora-engine/pull/107/files)
- Fixed the Hardhat error happening for `rainbow-bridge`.
- Spent some time on investigation for `EthOnNearClient` issue.
- Updated the `EthCustodian` to use Solidity 0.8 and the latest `rainbow-bridge` dependencies (required some patching).
- Modified `EthCustodian` to generate any proofs needed for the integration tests in `aurora-engine` and to be able to cover all test cases there.
- Worked on the implementation of Hardhat tests for the connectors’ precompiles.
- Worked on the implementation of integration-tests to verify promise deferring for precompiles.
- Added more Hardhat examples & minor fixes to existing.
- Merged aurora-engine's `develop` branch into `eth-connector`and resolve merge conflicts.
- Many syncs during the week with members of the team.

### Marcelo Fornet

- Hiring
- Reviewing PR in Aurora
- Fixing Testnet bridge

### Matt Henderson
- eNEAR testing and iterating with Pierre
- Coordinating the eNEAR launch
- Liquidity
- Partnerships (amms, lending protocol)
- Marketing
- Bridge Update

### Michael Birch

- Tried to provide help to Joshua on the Math API PR (burned lots of cycles on `runtime-params-estimator`)
- https://github.com/near/nearcore/pull/3954/commits/ee2d0f69bd10fb5e67af5856874368b2aa8a5808
- https://github.com/near/nearcore/pull/3954/commits/55dda77377b3cafb19e5dfb60f882714c81d49d2
- https://github.com/near/nearcore/pull/3954/commits/77f1b2a687e1ce472ea240f068d452329421174e
- Documentation on how to use MetaMask with Aurora
- https://doc.aurora.dev/develop/start/metamask
- https://github.com/aurora-is-near/doc.aurora.dev/pull/11
- Precompile dispatch matches on full address
- https://github.com/aurora-is-near/aurora-engine/pull/107
- PR reviews:
- https://github.com/aurora-is-near/aurora-engine/pull/51#pullrequestreview-665874914
- https://github.com/aurora-is-near/aurora-engine/pull/87#pullrequestreview-665555192
- https://github.com/aurora-is-near/aurora-engine/pull/88#pullrequestreview-670280490
- https://github.com/aurora-is-near/doc.aurora.dev/pull/12#pullrequestreview-670200044

### Pierre-Alain Ouvrard
- Release client libraries (v1.4.0 eNEAR), Release frontend.
- https://github.com/aurora-is-near/rainbow-bridge-client/tree/v1.4.0
- Fix find-replacement-tx issue for multisig wallets and handle network errors.
- Fix NEAR Wallet redirect issue:
- https://github.com/aurora-is-near/rainbow-bridge-client/issues/38
- UI improvements from Matt:
- Record bridge direction
- Fix back button navigation
- Metamask metadata PR for erc20 NEAR:
- https://github.com/MetaMask/contract-metadata/pull/859
- Work on verifying eNEAR on Etherscan.
- Refactoring, adding typescript, updating release process.

### Yulian Lavysh
- Round ops
- BD initiatives
- Coordinating the eNEAR relase
- Legal structure

## Discussion

### [eNEAR launch](https://aurora.dev/blog/near-on-ethereum)
- SushiSwap and DODO are considering the incentivized farming of the pools
- Ruler is interested in cooperation with both AMMs on the integration

### ETH connector deployment
- Deployment of the connector today (Arto + Kirill + Marcelo)
- Right after the deployment we would release TestNet Faucet
- Faucet frontend is required
- At the moment connector is deployed at `develop.aurora` account; later today it will be deployed at `aurora`
- Usage of the connector is available now only through CLI tools
- `eth-connector` branch to be merged into `develop` and when it's ready, it should be merged to `master`
- Two PRs from Michael to be merged before the release
- A feature flag (on the exit precompiles) should be added to before the merge of `eth-connector`

### Math API additions
- Evgeny Kapun to communicate to Joshua the need of a test

### EthCC conference
- Aurora team to visit the EthCC conference. Come join us there!

## Next week
- Ahmed Ali:
- More docs for HardHat + Sample DApp
- Documenting the solidity part in the Rainbow-bridge
- Troubleshooting MetaMask confirmation notifications with the RPC-Relayer
- Alex Shevchenko:
- Invest round
- Partner management
- Legal setup
- Hiring (DevOps, Marketing, BD)
- Arto Bendiken:
- Document all the things.
- Roll out edge infrastructure.
- Roll out block explorer.
- CLI for the ETH & ERC-20 connectors.
- Evgeny Kapun:
- More work on host funtions (Math API)
- Code reviews
- Evgeny Ukhanov:
- Support of eth-connector
- erc20-connector implementation
- ??? to be discussed
- Frank Braun:
- `evm-bully`: determine break point automatically.
- get dev feedback for `evm-bully replay-tx`.
- Joshua J. Bouw:
- Wrap up Math API
- Selfdestruct issue
- Kirill Abramov:
- Continue working on Hardhat tests for precompiles;
- Continue working on integration-tests for promise deferring;
- Review everything coming to `aurora-engine`.
- Marcelo Fornet:
- Finishing exit precompiles
- Finish eth-connector and erc20-connector
- Merge PRs from `rainbow-bridge` repo
- Matt Henderson:
- Testnet ETH transfer UI
- Possibly Mainnet ETH transfer UI
- eNEAR release followups
- Basecamp organization
- Update the roadmap on the web-site
- Michael Birch:
- TBD
- Documentation
- Pierre-Alain Ouvrard:
- Add checks for Ethereum -> NEAR transfer finalization -- dependant on the indexing / view function in the factory contract
- Aurora ETH/Erc20 transfers
- Yulian Lavysh:
- Support of the fundraise activities
- Legal setup