For any error cases, the API responds with HTTP Problem JSON object with the application/problem+json media type. For example, when you try to GET a blocklist that does not exist, the API responds with a JSON object such as the following:
{
"type":"https://localhost/api/network-policy/errors#core.entity-not-found",
"title":"The requested entity could not be found",
"detail":"BlockList 5 does not exist",
"instance":"https://akzz-xxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxx.luna.akamaiapis.net/api/network-policy/v1/blocklists/5#3e0857adc3b1ab6",
"entityType":"BlockList",
"entityId":5
}