[c-lightning] adding new commands to lightning-cli

[Christian Decker]

Hi Sarat,

`AUTODATA` will take care of registering the json command with the
JSON-RPC framework and you should be able to see your command with
`lightning-cli help` after recompiling and restarting. The `struct
json_command` that you registered with `AUTODATA` contains the method
name and the function to be called when a request matching that method
name comes in. The compiler should be able to help you with the
signature of the function that we expect.

Notice that if the information you require is exposed in some other way,
you can also write a plugin, instead. Plugins can be written in whatever
language you want, and can register options and JSON-RPC methods as well
(more to come in future). So if you don't need information that is not
otherwise exposed that might be a good option (you'd need to run the
unreleased `master` version though).

Cheers,
Christian

Sarat G <sarath.ginjupalli89 at gmail.com> writes:
> Hi,
>
> As part of my project requirement, i got to need the command that returns
> the status of the channel by taking input as peer id. For that I written up
> the necessary logic and lined it using AUTODATA. My doubt is on the
> lightningd side at which part do I need to add the logic to process the
> command information sent by the lightning-cli.
>
> Can someone please provide me some insights into adding a single command to
> the lightning-cli repo.
>
> Thanks in advance.
>
> Regards,
> Sarat G
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