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enable eth and usdc.eth on mainnet#2013

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chappjc merged 9 commits into
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chappjc:eth-mainnet
Feb 24, 2023
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enable eth and usdc.eth on mainnet#2013
chappjc merged 9 commits into
decred:masterfrom
chappjc:eth-mainnet

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@chappjc chappjc commented Dec 30, 2022 •
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@chappjc chappjc added this to the 0.6 milestone Jan 4, 2023
@chappjc chappjc added the ETH label Jan 4, 2023
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chappjc commented Jan 10, 2023

@itswisdomagain and I will be a bit busy with #1986, #2036, and #2025 for the next several days, so if anyone wants to push this branch to their remote and work on it, that's fine with me.

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buck54321
buck54321 reviewed Jan 11, 2023
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Comment thread dex/networks/eth/tokens.go Outdated
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chappjc commented Jan 11, 2023 •
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Just pushed 5140620 to resolve #1733 (comment) (thank you @norwnd)

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chappjc commented Jan 11, 2023 •
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Just pushed 6aed724 to address observations from final review of #1733 (review)
Namely, extremely tight gas limits on the swap contract txns. Targeting actual use equal to 97% of gas limit was not nearly adequate. Some wallets will target 66.6% (150% buffer over estimateGas). This commit changes ours to about 130% (we should see actual of about 77% the limit in etherscan).

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chappjc commented Jan 11, 2023 •
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Also need to review and probably further pad the v0Gases used for ETH swaps. Last comment and commit pertains to ERC20.

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chappjc commented Jan 11, 2023

Last commit 0abeb4e is in regard to #1733 (comment) and the new reality of the asset.Wallet interface established in f950443 (reasoning also stated at the time of review in #1866 (comment))

@chappjc chappjc force-pushed the eth-mainnet branch 3 times, most recently from c87d4ba to 6ae961e Compare January 26, 2023 21:13
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chappjc commented Jan 26, 2023
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Comment thread dex/testing/eth/create-node.sh Outdated
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chappjc commented Jan 31, 2023 •
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Dropped the commit for block poll interval fiddling with routable hosts (likely public provider). Leaving the compiler settable interval commit.

@chappjc chappjc force-pushed the eth-mainnet branch 2 times, most recently from cad2f42 to dd09bc5 Compare February 3, 2023 22:22
@chappjc chappjc mentioned this pull request Feb 3, 2023
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@chappjc chappjc force-pushed the eth-mainnet branch 5 times, most recently from 9c95fbf to c29fe5f Compare February 6, 2023 13:59
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chappjc commented Feb 16, 2023

There are live gas estimate issues begin resolved in #2129 and #2118, but this PR has no more changes pending.

All the gases are verified with actual on-chain transactions, not just estimates.

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chappjc commented Feb 16, 2023

Rebased and re-tested an ETH swap with DCR. Again the current ETHSwap contract is https://etherscan.io/address/0x8c17e4968b6903e1601be82ca989c5b5e2c7b400

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chappjc commented Feb 18, 2023

Also re-tested with USDC mainnet. Contract is still https://etherscan.io/address/0x1bbd020ddd6dc01f974aa74d2d727b2a6782f32d#code%5C

@chappjc chappjc force-pushed the eth-mainnet branch 2 times, most recently from e3d4c73 to 3d51c27 Compare February 20, 2023 16:02
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martonp commented Feb 20, 2023

I started a fresh dex, looked at the simnet exchange in view-only mode, had not yet tried to post any bonds, and I start seeing this log: Bond asset 0 not supported by DEX 127.0.0.1:17273

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chappjc commented Feb 20, 2023

There's some hangover from view-only. That looks like another thing. Will look into that on the bond-reserves branch.
The other view-only related fix is in ae92a07

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chappjc commented Feb 20, 2023

I don't quite get that error though if you didn't try to post any bonds (presumably didn't touch bond options either), I wonder why the view-only dex conn had targetTier > 0...

@chappjc chappjc force-pushed the eth-mainnet branch 2 times, most recently from d8ce193 to 82e78fa Compare February 21, 2023 23:07
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chappjc commented Feb 22, 2023

I understand mainnet testing is a burden, so if there are troubles on that front we can chat on matrix and I can provide guidance.
Unless there are specific concerns about the contracts or the updates in this PR, I'd like to have this merged by EOW.

@chappjc chappjc mentioned this pull request Feb 22, 2023
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@chappjc chappjc force-pushed the eth-mainnet branch 2 times, most recently from 5331d29 to e278924 Compare February 23, 2023 19:10
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enable eth and usdc.eth on mainnet
5afb44d
@chappjc
client/asset/eth: fix approval using hard-coded huge default
f485398
@chappjc
buffer mainnet gases limits to about 130% actual
ca17a92
@chappjc
server/asset/eth: use header age instead of eth_syncing
65cc949
@chappjc
server/asset/eth: compile-time block poll interval
482d2c6 
One second is blazing fast for an RPC provider unless it's a local node.
@chappjc
client/core: silence logging of unknown asset in spot price ntfns
b20c2fb
@chappjc
client/asset/eth: fix wrong gases in (test) tTokenContractor
19c3134
@chappjc
client/asset/eth: reduce redeem conf count to 3
5e3c045 
Post-Merge, reorgs are very difficult:

> even single-block reorgs are extremely difficult, because an
> attacker controlling only a few validators has no way to beat the
> honest majority of thousands of attesters.

from https://www.paradigm.xyz/2021/07/ethereum-reorgs-after-the-merge#post-merge-ethereum-with-proof-of-stake
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client/asset/eth: add (*assetWallet).amtString method
7d6fe47
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chappjc commented Feb 24, 2023

Ran another USDC swap today. Bad timing with gas (9am central is peak it seems), but otherwise it was fine.

@martonp Thanks for testing. You reported on matrix that it worked smoothly, correct?

@JoeGruffins has verified the contract source code via etherscan matches the contract in this PR. If one more person can also verify that, we can merge this.

https://etherscan.io/address/0x8c17e4968b6903e1601be82ca989c5b5e2c7b400#code#L1
https://etherscan.io/address/0x1bbd020ddd6dc01f974aa74d2d727b2a6782f32d#code#L1

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martonp approved these changes Feb 24, 2023
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I tested and it looks good to me!

@chappjc chappjc merged commit 1b05383 into decred:master Feb 24, 2023
@chappjc chappjc deleted the eth-mainnet branch February 24, 2023 20:16
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eth and erc20: enable mainnet

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