I would like to illustrate a problem with the pagination of the results of the OAI-PMH Data Provider of DSpace.
Let's assume that I display the first page of results of a specific type, in the context the Identifiers.
The URL of the request ends as shown here:
".../oaidl.jsp?verb=&ListIdentifiers&metadataPrefix=pico"
Until here, no problem. However, when selecting the Show More button, using exactly the Resumption Token indicated at the end of the first request response:
".../oaidl.jsp?verb=ListIdentifiers&resumptionToken=9999-12-31|1753-01-01|null|pico|982|2019-03-02T14%3A29%3A11Z"
I get an error page with the following message:
"XML interpretation error: no root element found..."
Can you tell me my mistake and, if possible, how can I solve it?
Thank you very much in advance!
Which version of DSpace are you running? The reference implementation at demo.dspace.org has a different url pattern than your example.
http://demo.dspace.org/oai/request?verb=Identify