Step | Description |
1 | For every message that is restart-enabled, Module for EDIINT adds to the message headers an ETag header and to the bizdoc an ETag attribute, both of which contain a unique transfer ID, the ETag ID. |
2 | The module sends the receiver an HTTP HEAD request for the number of bytes that have already been transmitted. |
3 | The receiver (either another Module for EDIINT or a similar EDIINT product) responds to the HEAD request with a Content-length header specifying the number of bytes that have already been received for the particular ETag ID. |
4 | Module for EDIINT uses the value in the Content-length header to determine at what point to resume transmission. |