EarthEngine save TIFF - Python API Changes?

Question

This code used to work using the Python API:

    url = ee.data.makeDownloadUrl(ee.data.getDownloadId({
          'image': image.serialize(),
          'scale': '%d' % scale,
          'filePerBand': 'false',
          'name': 'data',
    }))

It now complains that

   Image as JSON string not supported.

I'm assuming something changed in the API but I can't figure out what I need to change the "example" in the documenation is empty.

Anyone any suggestions?

Answer 1

Rather than using the low-level ee.data.makeDownloadUrl method, it is simpler to use the ee.Image.getDownloadURL method.

# Copyright 2021 Google LLC.
# SPDX-License-Identifier: Apache-2.0

sample_img = ee.Image('LANDSAT/LT05/C01/T1_TOA/LT05_031034_20110619')
url = sample_img.getDownloadURL({
  'scale':300,
  'filePerBand':False
})

Downloading directly may work for small images, but larger scale downloads should use batch export tasks, using the ee.batch module of the Python client library.

Answer 2

You just have to remove the .serialize() method:

 url = ee.data.makeDownloadUrl(ee.data.getDownloadId({
          'image': image,
          'scale': '%d' % scale,
          'filePerBand': 'false',
          'name': 'data',
    }))