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57 lines
2.2 KiB
Markdown
57 lines
2.2 KiB
Markdown
---
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title: Storage Examples
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---
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This page describes storage examples using the [StorageManager](../../references/sdk/storage.md)
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class. The storage examples include:
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* [Downloading a file](#downloading-a-file) - Get an object from storage.
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* [Uploading a file](#uploading-a-file) - Upload an object.
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* [Setting cache limits](#setting-cache-limits) - Set the maximum number of objects.
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:::note
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`StorageManager` supports http(s), S3, Google Cloud Storage, Azure, and file system folders.
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:::
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## StorageManager
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### Downloading a File
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To download a ZIP file from storage to the `global` cache context, call the [StorageManager.get_local_copy](../../references/sdk/storage.md#storagemanagerget_local_copy)
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method, and specify the destination location as the `remote_url` argument:
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# create a StorageManager instance
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manager = StorageManager()
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manager.get_local_copy(remote_url="s3://MyBucket/MyFolder/file.zip")
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:::note
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Zip and tar.gz files will be automatically extracted to cache. This can be controlled with the`extract_archive` flag.
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:::
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To download a file to a specific context in cache, specify the name of the context as the `cache_context` argument:
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manager.get_local_copy(remote_url="s3://MyBucket/MyFolder/file.ext", cache_context="test")
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To download a non-compressed file, set the `extract_archive` argument to `False`.
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manager.get_local_copy(remote_url="s3://MyBucket/MyFolder/file.ext", extract_archive=False)
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### Uploading a File
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To upload a file to storage, call the [StorageManager.upload_file](../../references/sdk/storage.md#storagemanagerupload_file)
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method. Specify the full path of the local file as the `local_file` argument, and the remote URL as the `remote_url`
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argument.
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manager.upload_file(local_file="/mnt/data/also_file.ext", remote_url="s3://MyBucket/MyFolder")
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### Setting Cache Limits
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To set a limit on the number of files cached, call the [StorageManager.set_cache_file_limit](../../references/sdk/storage.md#storagemanagerset_cache_file_limit)
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method and specify the `cache_file_limit` argument as the maximum number of files. This does not limit the cache size,
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only the number of files.
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new_cache_limit = manager.set_cache_file_limit(cache_file_limit=100) |