HARMONY-1721: Switch from using GET to a POST in all OGC coverages calls to harmony

[chris-durbin]

Jira Issue ID

HARMONY-1721

Description

harmony-py was using a GET for all calls to harmony, but this was causing 413 issues when trying to use a long list of granuleIds because of URL length limits. This PR switches to use a POST with multipart/form-data (we were already doing this when a shapefile was included in the request).

Local Test Steps

Run make test and verify all tests pass.
Run the first request in the examples/tutorial.ipynb notebook. Note that there's a bug in harmony parsing width and height which will be addressed as a separate ticket. So you'll need to comment those out so the cell looks like this:

collection = Collection(id='C1234088182-EEDTEST')

request = Request(
    collection=collection,
    spatial=BBox(-165, 52, -140, 77),
    temporal={
        'start': dt.datetime(2010, 1, 1),
        'stop': dt.datetime(2020, 12, 30)
    },
    variables=['blue_var'],
    max_results=10,
    crs='EPSG:3995',
    format='image/tiff',
    # height=512,
    # width=512
)

request.is_valid()

Verify the request completes successfully. You can also check the harmony logs in the UAT environment to tell that it is using a POST and not a GET.

PR Acceptance Checklist

• Acceptance criteria met
• Tests added/updated (if needed) and passing
• Documentation updated (if needed)

[ygliuvt]

Tested successfully locally.

[indiejames]

Ran tests and tutorial notebook successfully

[indiejames]

stupidest join syntax ever