feat: add support to run a hook in the initialize #633
Description
Today the implementation of the initialize method is exclusive done by the java-sdk, without the possibility of the developer to customize it or run any code before the mcp server answer to the mcp client.
An example is to add some metrics about usage (telemetry):
As a developer that is creating an internal mcp server for my company,
I want to be able to run a custom code inside the initialize
So I can get metrics about the usage and improve it.
It can be a hook that will be called every time that the initialize is called. I saw 2 options:
- Allow the hook to change the
InitializeResult - Just run a hook that returns
Void
Right now I don't need the first option, but it is more flexible.