that takes the data in form of a `Box<dyn SerializableReturn + Send>`
instead of a Value.
Implement it in json and extjs formatter, by starting a thread and
stream the serialized data via a `BufWriter<SenderWriter>` and use
the Receiver side as a stream for the response body.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
our ui expects a map here with 'field: "error"'. This way it can mark
the relevant field as invalid and correctly shows the complete error
message
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
