Add receive_via_jit_channel_for_hash() method
#608
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👋 Hi! I see this is a draft PR. |
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Thanks for opening this draft. I think given that we explored ~all other options, I'm slowly getting around to believe this is the simplest solution..
This needs some test coverage though. Could you add some coverage asserting that the manual-claiming flow works just as expected in conjunction with JIT channels?
Also, would be great if the commit message could describe the motivation of the change and what the change actually is.
src/payment/bolt11.rs
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| /// channel to us. We'll use its cheapest offer otherwise. | ||
| /// | ||
| /// We will register the given payment hash and emit a [`PaymentClaimable`] event once | ||
| /// the inbound payment arrives. |
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Mind adding here that we still check that the LSP-withheld fees are what we expect before issuing the event, i.e., users don't have to double-check that before manually claiming.
Sure, I will add tests. Note that I added the |
Yes, and yes please :) |
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Add corresponding `receive_via_jit_channel_for_hash()` and `receive_variable_amount_via_jit_channel_for_hash()` methods that accept a custom payment hash from the user. These methods allow implementing swap-in functionality with a JIT channel (i.e., swapping an on-chain payment to Lightning by opening a new channel).
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| @@ -360,8 +360,15 @@ impl Bolt11Payment { | |||
| } | |||
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| if let Some(details) = self.payment_store.get(&payment_id) { | |||
| let skimmed_fee_msat = match details.kind { | |||
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nit: Mind adding a comment here to describe when this would be relevant?
| .. | ||
| } => skimmed_fee_msat, | ||
| _ => 0, | ||
| }; | ||
| if let Some(expected_amount_msat) = details.amount_msat { |
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nit: Let's rename the variable here, as "the expected amount" will be the net amount, i.e., with skimmed_fee_msat already subtracted.
This method will allow to implement swap-in functionality with a JIT channel (i.e., swapping an on-chain payment to Lightning by opening a new channel).
Closes #597.