HTTP 102 Processing is an interim status code defined in the WebDAV specification (RFC 2518) that tells the client the server has accepted the complete request but has not yet completed it. This prevents the client from timing out while the server performs a lengthy operation. Unlike 100 Continue which is about the request body, 102 Processing signals that the server is actively working on a fully received request that takes more than a few seconds to complete.
Response includes the status code, standard headers (including Content-Type), and a small diagnostic JSON body describing the request and returned status.
Simulator URL (copy in the app after load — not a normal link):
https://httpstatus.com/api/status/102
Example request:
curl -i "https://httpstatus.com/api/status/102"