how to get caseIdentifiers method and how to use it ?
"Seq-2a: Check caseID availability" is used to check if a given caseId is available to use when creating or updating a Case. You can achieve this by calling the endpoint "caseIdentifier" using the HEAD method.
After successfully calling this endpoint, if you get the response code 200, you would not be able to use the given case ID as it is already in use within the current user's cases. If you get a 404 response, you can use the case ID to save a case and screen it.
In C#, you have to pass the case ID you are searching for in the URL itself.
where 1234 is the case ID whose availability you would like to check .
You can refer to the "World-Check One API C# .NET Request Code Examples" uploaded in the "Download" section of the Developer Community to get an understanding of how to send requests to WC1 API using C#. Here is the link:
Kindly let me know if you have further questions on this and I would be glad to help you.