OAI harvesting

OAI is a harvesting protocol for library systems. Default only public available content will be listed. The presentations 2Go video server offers 2 types of metadata formats: IMS-LOM and Dublin Core. You need to add query arguments to the default link to communicate with the OAI service:

Dublin core: https://demo.presentations2go.eu/P2G/OAIConnector.aspx?verb=ListRecords&metadataPrefix=oai_dc

IMS-LOM: https://demo.presentations2go.eu/P2G/OAIConnector.aspx?verb=ListRecords&metadataPrefix=oai_lom

Query parameters

To query the OAI engine you always need to start your query with: “?verb=”. Often you need to combine queries. The second parameter definition always starts with “&”. The following parameters can be used to query the Presentations 2Go video server:

 

  • Identify; use this parameter to get the videoserver details.
    Example: ?verb=Identify
  • ListMetadataFormats; use this parameter to get the list with available metadata formats
    Example: ?verb= ListMetadataFormats
  • ListIdentifiers; use this parameter to get a records summary showing only identifier, timestamp and status. This parameter always needs to be combined with MetadataPrefix.
    Example: ?verb= ListIdentifiers&MetadataPrefix=OAI_LOM
  • GetRecord; use this parameter to get the full metadata details of one record. This parameter always needs to be combined with MetadataPrefix and Identifier
    Example: ?verb=GetRecord&MetadataPrefix=OAI_LOM&Identifier= 4195-44cf-929b-68ff9900989f
  • ListRecords; use this parameter to get the full metadata details of multiple records. This parameter always needs to be combined with MetadataPrefix.
    Example: ?verb=ListRecords&metadataPrefix=OAI_LOM
  • From+Until; A special time filter can be added to the parameters ListRecords and ListIdentifiers.
    Example: ?verb=ListRecords&from=2012-01-01&until=2012-09-30&metadataPrefix=OAI_LOM
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