Comment by Aurornis

> To be fair I cannot trust your shape in your jsonrpc, I am not sure if id is truly an integer or if you sent me an integer by mistake, same as params or even the payload of the params' param

In practice, it doesn't matter.

If the JSON payload is in the wrong format the server rejects it with an error.

If the server sends an integer "by mistake" then the purists would argue that the client should come to a halt and throw up an error to the user. Meanwhile the JSON users would see an integer coming back for the id field and use it, delivering something that works with the server as it exists today. Like it or not, this is why JSON wins.

Schema defined protocols are very useful in some circumstances, but in my experience the added overhead of keeping them in sync everywhere and across developers is a lot of overhead for most simple tasks.

Putting the data into a simple JSON payload and sending it off gets the job done in most cases.