RPC Response: error while deserializing response for missing jsonrpc version field

[gnapoli23]

I was using the lib for interacting with a JSON-RPC server that does not provide the jsonrpc protocol version in its responses (actually it sets this field to null) and received an error in deserializing them.
Looking at sources, I saw that the Response struct defines the jsonrpc version field as required, while checking in the JSON-RPC 2.0 specification, this field is not mandatory but is actually optional.
Here the spec: JSON-RPC 2.0 Spec

[niklasad1]

Hey,

I agree with your interpretation as all other fields are marked as REQUIRED thus a request without that "jsonrpc":"2.0" is according to the spec.

with a JSON-RPC server that does not provide the jsonrpc protocol version in its responses (actually it sets this field to null

"jsonrpc":null is not according to the spec,

jsonrpc
A String specifying the version of the JSON-RPC protocol. MUST be exactly "2.0".

[gnapoli23]

"jsonrpc":null is not according to the spec,

jsonrpc
A String specifying the version of the JSON-RPC protocol. MUST be exactly "2.0".

Yeah, correct, I meant "missing" :)