JsonRpcError

A JSON-RPC 2.0 error object.

codeinteger<int64>required

Numeric error code.

Example: -32602

dataobject | nullnullable

Optional structured detail, e.g. the offending parameter.

messagestringrequired

Short human-readable description.

Example: Invalid params

JsonRpcError

{
  "code": -32602,
  "data": "Unknown Type: object,null",
  "message": "Invalid params"
}