The following diagram describes the exchange flows for registration and retrieval of documents hosted in OFF
Exchange flow to retrieve document from the OFF digital library
| # | Operation | endpoint |
|---|---|---|
| 1 | OSF sends a document retrieval request to WIPO DAS and receives a request acknowledgement id issued by WIPO DAS | POST /das/v1/requests/retrievals |
| 2 | WIPO DAS forwards the retrieval request to the OFF | POST /das/v1/requests/retrievals |
| 3 | OFF prepares the requested document for download and notify WIPO DAS of the document availability by referring to the request acknowledgement id returned by WIPO DAS | POST /das/v1/requests/notifications |
| 4 | WIPO DAS retrieves the file location URL based on the provided URL | POST /das/v1/requests/files/url-downloads |
| 5 | WIPO DAS download the document file content from OFF | |
| 6 | WIPO DAS prepares the requested document for download by OSF and notifies the OSF of the document availability by referring to the request acknowledgement id returned in step 1 | POST /das/v1/requests/notifications |
| 7 | OSF retrieves the file location URL for document download by referring to the request acknowledgement id returned in step 1 | POST /das/v1/requests/files/url-downloads |
| 8 | OSF uses the given file location URL obtained in step 7 to download the document file content | |
9 | Optionally OSF deletes the download files from the DAS transit zone | DELETE /das/v1/requests/files |
Note: