Sparse fieldsets (select)

The select parameter lets you request only the fields you need, reducing response size and improving readability.

/v4/datasources?filter=country:GR&select=id,officialName,type

Field names match the actual JSON property names in the response. Dotted sub-paths of a listed field are also accepted.

Selectable response fields

Identity and names

Field	Type	Description
id	string	OpenAIRE identifier
originalIds	array	Identifiers at original sources
pids	array	Persistent identifiers
officialName	string	Official name of the data source
englishName	string	English name of the data source

Classification

Field	Type	Description
type	object	Data source type
subjects	array	Subjects associated with the data source
contentTypes	array	Types of content (as defined by OpenDOAR)
eoscdatasourcetype	string	EOSC data source type
jurisdiction	string	Jurisdiction
thematic	boolean	Whether the data source is thematic
languages	array	Languages
odlanguages	array	OpenDOAR languages

Compatibility

Field	Type	Description
openaireCompatibility	string	OpenAIRE compatibility level (label)
openaireCompatibilityId	string	OpenAIRE compatibility level (id)

Web presence

Field	Type	Description
websiteUrl	string	Data source website
logoUrl	string	Logo URL
missionStatementUrl	string	Mission statement URL
citationGuidelineUrl	string	Citation guideline URL

Dates

Field	Type	Description
dateOfValidation	string	Date of validation
releaseStartDate	string	Release start date
releaseEndDate	string	Release end date

Access and policies

Field	Type	Description
accessRights	string	Access rights
uploadRights	string	Upload rights
databaseAccessRestriction	string	Database access restriction
dataUploadRestriction	string	Data upload restriction
versioning	boolean	Versioning support
pidSystems	string	Supported PID systems
certificates	string	Certificates
policies	array	Policies

Other

Field	Type	Description
description	string	Description of the data source
journal	object	Journal information (if applicable)
links	array	Related links

Examples

Only IDs and official names:

/v4/datasources?filter=country:GR&select=id,officialName

Type and compatibility overview:

/v4/datasources?filter=type:Repository&select=id,officialName,openaireCompatibility,websiteUrl