--- Log opened Thu Dec 16 00:00:02 2021
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02:47 < dr-orlovsky> Hi! I am connecting to c-lightning with a new lightning node written by me. I am getting init message where `gossip_queries_ex` is set and `gossip_queries` is not. This is against BOLT-9. However I am unsure is it a error in my decoding of feature flags, or real c-lightning unstandardness.
02:47 < dr-orlovsky> So questions: (1) where I can check/set/edit c-lightning features transmitted in the init message? Can't find them in the docs. (2) Is it true that c-lightning may set features without setting all required dependencies?
02:49 < dr-orlovsky> BTW I am using LNP Node - a new node written in Rust from the scratch with no other ln libs used; so have to go through all standards and check each bit. Currently I am trying to achieve 100% c-lightning compatibility and with that process will do a lot of other checks. Will be happy to report results here
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03:09 < darosior> dr-orlovsky: you might be interested in https://github.com/rustyrussell/lnprototest
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03:53 < vincenzopalazzo> dr-orlovsky: There is also a code generator from the spec https://github.com/dart-lightning/lnspec-codegen.py where you can implement your language. I had no time to write some integration testing yet, but I think can be useful for your node implementation too.
04:00 < dr-orlovsky> thank you guys, these are very useful suggestions! Regarding the issue, question (1) is resolved: it was encoding problem on my side, c-lightning puts correct features into init
04:00 < dr-orlovsky> still question (2) is pending
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07:41 < andrewtoth_> I made a plugin to track unconfirmed txs via `listfunds` https://github.com/andrewtoth/listmempoolfunds
07:42 < andrewtoth_> It has to use a new RPC `listmempoolfunds`, since I couldn't find a way to modify `listfunds` command itself via the plugin interface
07:45 < andrewtoth_> Specifically, I want to get the result of a normal call to `listfunds`, and append to it. I can't hijack it via `rpc_command` hook, because you can't make a new rpc command in the hook
07:46 < andrewtoth_> Maybe there can be a way to modify the output of an rpc command after it is completed? Like a `rpc_response` hook?
07:48 < andrewtoth_> The main issue is you can't make a new rpc call back to lightningd if your plugin also subscribes to the `rpc_command` hook. The plugin will hang on any rpc call, even in another method, if `rpc_command` is subscribed.
07:49 < andrewtoth_> So even a `replace` response from the hook to another method in that plugin will fail. You need 2 plugins, one to replace via `rpc_command` and the other to create the new method.
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09:26 < cdecker[m]> Interesting use case, sounds a lot like you're trying to implement a modifying middleware, which indeed doesn't work in this case. The new rpc method is pretty much the intended way to do something like this. It's cleaner as a new rpc method is free to implement new semantics and new respinse formats (both things that might break existing tools and UIs if we allow them).
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10:27 < andrewtoth_> cdecker: makes sense, thanks
10:32 < cdecker[m]> I should also mention that that is my opinion, but open to discussion 😉
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--- Log closed Fri Dec 17 00:00:03 2021