Das2 HAPI Subsystem
This Das2 server supports the Heliophysics Application Programming
Programming Interface (HAPI) 1.1 specification for query and delivery of
single resolution, uniform time series data. The following common
Das2 data sources will not fit within into the HAPI specification and are
automatically excluded from the catalog:
- Selectable resolution data sources such as spacecraft ephemerides and
magnetic field models
- Variable frequency resolution data sources such as the Cassini RPWS
Low-Rate Complete survey set
- Any data source that redirects operations to another server
- Any data source that requires authentication
Because of these restrictions, dependence on the Heliophysics API as
the primary access mechanism for the data on this server is not
recommend.
Endpoints
The HAPI subsystem consists of the following four paths that will respond
to HTTP GET requests.
- capabilities describe the capabilities of the
server; this lists the output formats the server can emit (CSV)
- catalog list the datasets that are available; each
dataset is associated with a unique id
- info obtain a description for dataset of a given id;
the description defines the parameters in every dataset record
- data stream data content for a dataset of a given id;
the streaming request must have time bounds (specified by request
parameters time.min and time.max) and may indicate a subset of parameters
(default is all parameters)
Many datasets available from this server may not fit into the output
format required by the API. For these, use of the native Das2 stream format
is recommended. For more information on the Helophysics API, it's capabilities
and restrictions, see this page at
the SPASE web site.