Liaquat National Hospital

Open Archives Initiative Protocol for Metadata Harvesting

Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) is a low-barrier mechanism for repository interoperability. Data Providers are repositories that expose structured metadata via OAI-PMH. Service Providers then make OAI-PMH service requests to harvest that metadata. OAI-PMH is developed by the Open Archives Initiative.
LNH-Journals fully supports the OAI Metadata Harvesting Protocol 2.0. Metadata for all published articles is available via the OAI-PMH interface to interested Service Providers.

Examples of OAI-PMH Requests

1. To retrieve information about a repository

   https://journals.lnh.edu.pk/OAI_PMH/Index?verb=identify

2. To retrieve the set structure of the LNH-Journals repository.

   https://journals.lnh.edu.pk/OAI_PMH/Index?verb=listsets

3. To retrieve the metadata formats available from the LNH-Journals repository.

   https://journals.lnh.edu.pk/OAI_PMH/Index?verb=listmetadataformats

4. To retrieve records from the LNH-Journals repository.

   https://journals.lnh.edu.pk/OAI_PMH/Index?
   verb=listrecords&metadataprefix=oai_dc

5. To retrieve an individual metadata record from the LNH-Journals repository

   https://journals.lnh.edu.pk/OAI_PMH/Index?
   verb=getrecord&identifier=oai:LNH-Journals:10.37184/lnjpc.2707-3521.1.10&metadataprefix=oai_dc

6. To retrieve an abbreviated form of List Records, retrieving only headers rather than records for a specific volume in a journal

   https://journals.lnh.edu.pk/OAI_PMH/Index?
   verb=listidentifiers&metadataprefix=oai_dc&set=LNH-Journals.LNJPC:2020

7. To retrieve an abbreviated form of List Records, retrieving only headers rather than records in a specified date range

   https://journals.lnh.edu.pk/OAI_PMH/Index?
   verb=listidentifiers&metadataprefix=oai_dc&from=2020-01-01&until=2020-12-30