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feat: charge fee when opening a jit channel #864

Merged
merged 7 commits into from
Jul 3, 2023
Merged

feat: charge fee when opening a jit channel #864

merged 7 commits into from
Jul 3, 2023

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holzeis
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@holzeis holzeis commented Jun 29, 2023 •
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fixes #577

  • The payment of the fee is not yet depicted as a special payment. This will be covered in a follow up PR after aligning with Pay order-matching fee on the app #863
  • The funding transaction is only cached in memory

TODOs that will be covered in follow up tickets.

Simulator Screenshot - iPhone 14 Pro - 2023-06-30 at 11 34 28

@holzeis holzeis self-assigned this Jun 29, 2023
@holzeis holzeis force-pushed the feat/charge-fee-when-opening-a-jit-channel branch from e9597d5 to 8fd312f Compare June 30, 2023 09:31
@holzeis holzeis changed the title wip: charge fee when opening a jit channel feat: charge fee when opening a jit channel Jun 30, 2023
@holzeis holzeis requested a review from luckysori June 30, 2023 09:32
@holzeis holzeis force-pushed the feat/charge-fee-when-opening-a-jit-channel branch from 8fd312f to 15d299b Compare June 30, 2023 09:34
@holzeis holzeis marked this pull request as ready for review June 30, 2023 09:34
@holzeis holzeis force-pushed the feat/charge-fee-when-opening-a-jit-channel branch 2 times, most recently from c50b05d to 0855cdc Compare June 30, 2023 10:37
@holzeis holzeis mentioned this pull request Jun 30, 2023
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holzeis commented Jun 30, 2023 •
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It looks like we don't always broadcast the funding transaction when opening a channel. That results into a failed attempt to fetch the funding transaction from esplora.

  • Locally the test fail due to that issue as no channel fee payment can be processed. see also Channel without funding transaction on chain #873
  • The tests in the CI fails for a different reason though. No Route Found which is odd as a payment can be received, maybe the payment attempt needs to be delayed to ensure that the outbound liquidity is updated.

@holzeis holzeis force-pushed the feat/charge-fee-when-opening-a-jit-channel branch from 0855cdc to 58ef2d2 Compare June 30, 2023 11:20
luckysori
luckysori approved these changes Jul 3, 2023
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Nice!

I've left a bunch of primarily stylistic comments.

mobile/native/src/ln_dlc/lightning_subscriber.rs Outdated Show resolved Hide resolved
coordinator/src/routes.rs Show resolved Hide resolved
mobile/native/src/ln_dlc/mod.rs Outdated Show resolved Hide resolved
mobile/native/src/ln_dlc/mod.rs Outdated Show resolved Hide resolved
mobile/native/src/channel_fee.rs Outdated Show resolved Hide resolved
mobile/native/src/ln_dlc/lightning_subscriber.rs Outdated Show resolved Hide resolved
mobile/native/src/channel_fee.rs Outdated Show resolved Hide resolved
mobile/native/src/channel_fee.rs Show resolved Hide resolved
mobile/native/src/channel_fee.rs Outdated Show resolved Hide resolved
mobile/native/src/channel_fee.rs Outdated Show resolved Hide resolved
@holzeis
feat: Publish lightning events to mobile app
3a144a9 
This allows us to move app or coordinator specific code out of the crate and handle it in the layer where it should be.

This also allows us to step wise refactor the event handler.
@holzeis
feat: Add lightning subscriber on app layer
e5c7eee
@holzeis
chore: Remove outdated TODO
63d7e77
@holzeis
chore: Remove unnecessary json wrapper on invoice
07033d4 
This resulted in the invoice having additional quotes, that would have required additional handling.
@holzeis
feat: Add channel fee payment subscriber
c31f6b3
@holzeis holzeis force-pushed the feat/charge-fee-when-opening-a-jit-channel branch 3 times, most recently from 2ede2c6 to 9637cf7 Compare July 3, 2023 17:50
@holzeis
chore: Mine block before and after onboarding app
e72b43b 
It appears broadcasting the funding transaction fails every once in a while as the output transaction has already been spent.

This leads to the following bug #873. Once fixed it should not be required to mine blocks to make that test pass all the time.
@holzeis
chore: Relax test assertion to cater for CI
c7944d5 
Contrary to a local run the CI is skipping the direct route to payee for unkown reasons. That's why we are relaxing the balance assertion to cater for the fees being substracted or not.

This should be changed once #883 is fixed.
@holzeis holzeis force-pushed the feat/charge-fee-when-opening-a-jit-channel branch from 9637cf7 to c7944d5 Compare July 3, 2023 18:03
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holzeis commented Jul 3, 2023

bors r+

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@bors bors bot merged commit 6a29ff5 into main Jul 3, 2023
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@bors bors bot deleted the feat/charge-fee-when-opening-a-jit-channel branch July 3, 2023 18:27
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JIT - Channel Fee
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@holzeis @luckysori