HAPI, the
Heliophysics Data Application Programmer’s Interface
is a protocol for serving streamed time series data.
This reader can read HAPI CSV and binary tables
if they include header information
(the include=header request parameter
must be present).
An example HAPI URL is
https://vires.services/hapi/data?dataset=GRACE_A_MAG&start=2009-01-01&stop=2009-01-02&include=header
While HAPI data is normally accessed directly from the service, it is possible to download a HAPI stream to a local file and use this handler to read it from disk.
This format cannot be automatically identified
by its content, so in general it is necessary
to specify that a table is in
HAPI
format when reading it.
However, if the input file has
the extension ".hapi" (case insensitive)
an attempt will be made to read it using this format.
The handler class for files of this format is
HapiTableBuilder.