Fastauth metamask

[mattlockyer]

To start:

• yarn && yarn build:fastauth-metamask && yarn serve:react
• login and select MetaMask
• follow prompts

Basic implementation of:

• search mapping contract for existence of NEAR account for Ethereum Address
• sign message with MetaMask to generate keyPair for new Account
• new KeyPair stored in memory
• signIn with wallet-selector
• signOut with wallet-selector
• verifyOwner
• signAndSendTransaction(s)

TODO

1. deploy mapping contract and verify if NEAR account exists for given Ethereum address
2. create account (with MetaTransaction API) if no mapping found and add the Ethereum account and NEAR account to the mapping contract
3. fix signIn flow so modal hides without error

[HarisSQA]

Hi @mattlockyer,

I'm having this issue to build it as it's shown in the repo. Also tried to fix these issues, but I'm assuming that this isn't finished. Some functions don't work, there is missing import and type, and some variables are not renamed from neth. Feel free to comment if I'm missing something.

[mattlockyer]

Sorry for the build errors, yarn serve:react was working previously and I guess the dev server was less strict.

[kujtimprenkuSQA]

The build passes locally but there are a few linting issues which prevent the gh-actions to pass, try running:

yarn nx run fastauth-metamask:lint

When I tried to sign in with MetaMask on the final step the account id is not showing properly on the alert popup, can you fix this:

UPDATE: The [object Object] was showing because I had a near account in MetaMask via NETH after removing and installing meta mask again this popup is not showing but it still says "kujtimprenku.testnet" has not been founded but I have NEAR on this account.

[kujtimprenkuSQA]

This ID conflicts with the main modal https://github.com/near/wallet-selector/blob/main/packages/modal-ui/src/lib/modal.tsx#L12 how is this meant to be used?

Looks like this is the reason why the flow throws an error when signIn finishes and the modal hides.

[kujtimprenkuSQA]

@mattlockyer I added this PR to help you fix the linting issues: NearDeFi#1, if this looks good you can go ahead and merge it and then address other outstanding comments in this PR.

To spot these linting issues you might need to configure your IDE and then most of them would "automatically" be fixed on save.

https://github.com/near/wallet-selector#editor-setup

[kujtimprenkuSQA]

Does the signAndSendTransactions exist in the Account class?
https://github.com/near/near-api-js/blob/master/packages/accounts/src/account.ts

[mattlockyer]

Thanks for the help. Ideally someone from Pagoda who understands more about how they plan to use the keys generated by MetaMask takes the lead on this PR. I'm still in the dark as to how accounts will be created and where keys will be stored once those accounts are created.

Appreciate the PR @kujtimprenkuSQA