Implement RegisterRPCHandler function

LiskArchive / lisk-engine

:bullettrain_front: Lisk blockchain engine

https://lisk.com

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Implement RegisterRPCHandler function #51

Closed matjazv closed 1 year ago

matjazv commented 1 year ago

What was the problem?

This PR resolves #41.

How was it solved?

Implementation of RegisterRPCHandler() function.
Update generated files by codec (some files in engine were not updated to the latest version).

How was it tested?

New unit tests were implemented.
Existing and new unit tests passed.

matjazv commented 1 year ago

Currently SendRequestMessage returns Response struct which has field err error. If it would be sufficient that err could be string type instead of error type then Response struct could be removed and only ResponseMsg struct could be used in entire p2p/v2 package.

Downside is that modules could not do if err != nil but they would must do if err != "".