send exception message instead of "Server error"

When RPC methods raises an exception there is always the same reply returned:

INFO jsonrpcclient.client.response: {"jsonrpc": "2.0", "error": {"code": -32000, "message": "Server error"}, "id": 2}

It would be great if ‘message’ could contain str(exception) that was thrown by called method.

[seidlmic]

I would like to implement application defined errors with specific code, message and data (https://www.jsonrpc.org/specification#response_object). So something like {"jsonrpc": "2.0", "error": {"code": -32800, "message": "Invalid input geometry", "data": {"index": 33, "coordinates": [1135.124, -25689]}}, "id": "1"} I would like to raise application defined exception in rpc method that I would handle in the way shown above. I am working with geo data that are not always perfect.

[okke-formsma]

I have the same issue as @seidlmic.

One approach would be to raise a ExceptionResponse from inside the method. This way, all ‘specially handled’ exceptions will get the proper response, and ‘normal’ exceptions get the generic jsonrpc exception handling.

To make this happen, we only have to adjust the handle_exceptions call to catch ExceptionResponses and rethrow them.

Also could you reopen this issue? It took me a while to find this.