issues: 525336574

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
525336574 MDU6SXNzdWU1MjUzMzY1NzQ= 3548 Support metadata_key in opening consolidated Zarr store 7591667 open 0     1 2019-11-19T23:55:22Z 2019-11-22T16:33:51Z   NONE      

Problem Description

I want to use xarray.open_zarr to open a Zarr store with consolidated metadata, using a different metadata key, but right now it doesn't seem possible. Zarr allows you to specify the location of that key using the metadata_key argument in zarr.open_consolidated (see: https://zarr.readthedocs.io/en/latest/api/convenience.html#zarr.convenience.open_consolidated), however there is no way to pass that argument to xarray right now. After browsing the source code I actually found a comment about this issue: https://github.com/pydata/xarray/blob/652dd3ca77dd19bbd1ab21fe556340c1904ec382/xarray/backends/zarr.py#L257

If it's just a matter of adding that key to the kwargs of xarray.open_zarr then it shouldn't be a problem for me to submit a PR for this.

 
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