swapserverrpc: arbitrary static swap amount #951
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hieblmi
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starius
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Jun 19, 2025
swapserverrpc/staticaddr.proto
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| server will take out this amount from the total value of provided | ||
| deposit_outpoints and will send the change back to the static address. If | ||
| not specified the server will use the total amount of the deposit_outpoints | ||
| as swap amount. |
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What happens, if the amount is too close to the total amount (so the change would be dust)? I think it makes sense if it fails and suggests to remove the flag to use the whole amount.
Could you add the actual expected behavior in this case to the comment, please?
Also, if the amount is equal to the total amount, it makes sense just to succeed, right? And if higher - fail.
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I expanded the comment to explain.
Note, there is no flag to use the whole amount of provided deposits for backwards compatibility. If deposits are specified without an amount the whole amount is used.
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|
Rebased master |
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This commit adds an optional change output to the sweep struct.
Presigning sweeps takes change outputs into account. Each primary deposit id of a sweep group points to an optional change output. sweepbatcher.presign scans all passed sweeps for change outputs and passes them to constructUnsignedTx. Optional change of a swap is encoded in its sweeps as a pointer to the same change output. This change is taken into account when constructing the unsigned batch transaction when it comes to tx weight and outputs.
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This PR adds an
amountfield to theServerStaticAddressLoopInRequest.