Media Types

Media types (also known as MIME types) indicate the format of a given file or resource artefact, such as application/pdf for a PDF, or image/png for a PNG image.

Media types for common formats are standardised via the IANA media types registery.

Media types are shown:

  • in metadata record distribution options, describing the formats a resource can be downloaded as

  • in data access systems, when resource artefacts (files) are downloaded

Typically these media types will match. Metadata records may use a local media type where additional context can be provided.

Local Media Types

A set of local media types are registered for use within BAS to provide additional context, or where no suitable IANA media type is available. Wherever possible, local types are based on a broader or cloest matching IANA registered type.

For example the application/pdf+geo local media type is based on the IANA application/pdf type.

Type
Name

Local Media Types (services)

A set of additional local media types are defined to represent services within distribution options.

Type
Name

Esri ArcGIS Feature Service

OGC API Features Service

Esri ArcGIS Vector Tile Service

Esri ArcGIS Hosted Feature Layer

Esri ArcGIS Hosted OGC Feature Layer

Esri ArcGIS Hosted Vector Tile Layer

Last updated