Who is using IbcQuery::ListChannels and for what?

[webmaster128]

In order to improve API design, we look for users and use cases of IbcQuery::ListChannels

If you know someone doing that in a public or private codebase, please let us know! Any hints are appreciated.

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Please note this bug for port_id: None in wasmd that we want to fix: CosmWasm/wasmd#1597

[donovansolms]

Yes, Astroport uses it to ensure interchain governance proposals are submitted with a valid channel. You can see it in this check in the governance contract. In other areas we also use it to check that a valid channel was provided.

[webmaster128]

Thanks for sharing. Very interesting. In this case, can't you do a IbcQuery::Channel query instead? This looks for the channel ID, port ID pair directly and should save you gas.