Method Not Allowed when patching registration

Recently some registrations of commands expired so I am trying to patch their "expires" attribute. However, I receive a 405 method not allowed message error.

Retrieving info about the registration:

curl -X GET \
http://localhost:1026/v2/registrations/5d3ff3e2ab1e270d7775a7bf \
-H 'Accept: application/json'

{
    "id": "5d3ff3e2ab1e270d7775a7bf",
    "expires": "2019-08-29T07:38:10.00Z",
    "dataProvided": {
        "entities": [
            {
                "id": "urn:ngsi-ld:ActuatorScreenshot:001",
                "type": "Actuator"
            }
        ],
        "attrs": [
            "Screen"
        ]
    },
    "provider": {
        "http": {
            "url": "http://localhost:4041"
        },
        "supportedForwardingMode": "all",
        "legacyForwarding": true
    },
    "status": "active"
}

I attempted following the example from http://telefonicaid.github.io/fiware-orion/api/v2/stable/:

curl -X PATCH \
  http://localhost:1026/v2/registrations/5d3ff3e2ab1e270d7775a7bf \
  -d '{
    "expires":"2040-10-04T00:00:00"
}'

But as I said I got the error message: 405 Method Not Allowed

Feel free to ask for more info.

Solution

The operation to modify registrations has not been yet implemented in Orion 2.2.0 (last version in the moment of writing this). As mentioned in Orion documentation:

Orion implements registration management as described in the NGSIv2 specification, except for the following aspects:

List item PATCH /v2/registration/<id> is not implemented. Thus, registrations cannot be updated directly. I.e., updates must be done deleting and re-creating the registration. Please see this issue about this.

However, the workaround is pretty simple: delete the old registration and create a new one with the modified parameters.