Storage¶

Retrieve assets from completed tasking and catalog orders.

You can search for assets from specific orders or for assets with specific parameters.

Search for assets from orders¶

Get a list of all tasking and catalog orders:

storage = up42.initialize_storage()

orders = storage.get_orders(
    limit=100,
    sortby="createdAt"
)

assets = orders[0].get_assets()

Get information about a specific asset by using its order ID:

storage = up42.initialize_storage()

up42.initialize_order(
    order_id="ea36dee9-fed6-457e-8400-2c20ebd30f44"
)

Search for specific assets¶

You can search by different properties — for example, tags, geometry, geospatial collections.

assets = storage.get_assets(
    created_after="2022-01-01",
    limit=100,
    sortby="size",
    descending=False
)

print(assets[0].info) # Dictionary with the asset metadata

print(assets[0].stac_info) # Dictionary with additional STAC metadata — for example, geometry or image acquisition parameters

Get information about a specific asset by using its ID:

storage = up42.initialize_storage()

up42.initialize_asset(
    asset_id="ea36dee9-fed6-457e-8400-2c20ebd30f44"
)

Download assets¶

The default download path for an asset is your current working directory. You can also provide a custom output directory.

Download a single asset as follows:

assets[0].download()

Download multiple assets by looping over a list of assets as follows:

for asset in assets:
    asset.download()

Access STAC objects¶

STAC collection

An UP42 asset you received in storage as a result of a completed tasking or catalog order. It groups related items and aggregates their summary metadata. A STAC collection contains STAC items.
STAC item

An individual scene in a STAC collection that has a unique spatiotemporal extent. Different spatiotemporal extents produce different STAC items.
STAC asset

A geospatial feature of a STAC item, its quicklook, or metadata file. For example, multispectral and panchromatic products of an image acquired by an optical sensor are different STAC assets.

For more information, see Introduction to STAC.

Get STAC items from an UP42 asset by using your workspace ID:

storage = up42.initialize_storage()

assets = storage.get_assets(workspace_id="your-workspace-id")
item_list = assets[0].stac_items

Get STAC assets from an UP42 asset:

for key, asset in assets[0].stac_items[0].get_assets().items():
    print(f"{key}: {asset.href}")

PySTAC¶

PySTAC is a library for working with STAC. You can use it as an alternative method of accessing STAC objects inside UP42 assets.

Authenticate pystac-client to browse in UP42 storage as follows:
```
up42_pystac_client = storage.pystac_client
```

Run regular PySTAC client operations using up42_pystac_client:

up42_stac_collections = up42_pystac_client.get_collections()