Make kwenta able to pay for gas on L2

gberg1 commented 3 years ago

Summary

Dev Tasks

[x] Gas price to be read from the provider
[x] Mainnet - notify user that they have no WETH on L2 and point them to the optimism dapp bridge (blocked by Optimism link)
[x] Add constant to mono repo for gas
[x] Ping Erika to figure out best way to show this (header or when they make a transaction)
[x] Use gas estimate for L2

Airdrop WETH to L2 users, ping @ajsantander choose who is eligible

Gas Price - on L1 keep same logic, recommended and custom fetched from 3rd party api. On L2 GWEI will be a gas price of 1

gas estimate for L2 is going to be hardcoded to 9M, gas estimate for L1 still use gas limit estimate func

QA Tasks

PR: https://github.com/Synthetixio/kwenta/pull/305
[x] Go to https://kwenta-git-l2-get-weth-synthetixio.vercel.app/exchange
[x] Connect wallet
[x] Switch to Optimism Mainnet
[x] Expected to see a Your wallet has no Synths. Buy sUSD to trade Synths: message in the footer.
[x] Switch to Optimism Kovan or Mainnet.
[x] Expect the message to disappear. Optimism Kovan doesn't need gas.

kelonye commented 3 years ago

Hard-coded the gas prices (see below) to zero for now. Asked if there will be an endpoint that will allow us to get these prices, in the optimism channel.

kelonye commented 3 years ago

Updating this to read from provider.getGasPrice

Synthetixio / kwenta