Add capability to download custom set of assets from DataGranule using earthaccess.download()

[forrestfwilliams]

If this already exists it would be awesome to know, but I don't think earthaccess currently supports downloading just one asset (i.e., image band), or a custom set of assets, from a DataGranule using earthaccess.download. It would be great to be able to specify a set of bands when making a earthaccess.download call.

[mfisher87]

Would you mind providing some example code that doesn't do what you want, plus what you imagine the same code might look like after implementing your idea? Thanks! 🙇

[betolink]

Hi @forrestfwilliams! this is a recurrent requested feature, HLS has a similar issue, what if a user only needs 3 bands from the granule... we talked about using a glob or a list of globs to match the assets:

results = earthaccess.search_data(**params)
custom_bands = earthaccess.download(results, pattern=["*B01*", "*S1*"], "./data")

Would this work with your use case?

[Rapsodia86]

So, is it like having filtering implemented within the download function? #409

[betolink]

I think so! @Rapsodia86