> ## Documentation Index
> Fetch the complete documentation index at: https://langchain.idochub.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Azure Blob Storage Container

> [Azure Blob Storage](https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blobs-introduction) is Microsoft's object storage solution for the cloud. Blob Storage is optimized for storing massive amounts of unstructured data. Unstructured data is data that doesn't adhere to a particular data model or definition, such as text or binary data.

`Azure Blob Storage` is designed for:

* Serving images or documents directly to a browser.
* Storing files for distributed access.
* Streaming video and audio.
* Writing to log files.
* Storing data for backup and restore, disaster recovery, and archiving.
* Storing data for analysis by an on-premises or Azure-hosted service.

This notebook covers how to load document objects from a container on `Azure Blob Storage`.

```python theme={null}
%pip install -qU  azure-storage-blob
```

```python theme={null}
from langchain_community.document_loaders import AzureBlobStorageContainerLoader
```

```python theme={null}
loader = AzureBlobStorageContainerLoader(conn_str="<conn_str>", container="<container>")
```

```python theme={null}
loader.load()
```

```output theme={null}
[Document(page_content='Lorem ipsum dolor sit amet.', lookup_str='', metadata={'source': '/var/folders/y6/8_bzdg295ld6s1_97_12m4lr0000gn/T/tmpaa9xl6ch/fake.docx'}, lookup_index=0)]
```

## Specifying a prefix

You can also specify a prefix for more fine-grained control over what files to load.

```python theme={null}
loader = AzureBlobStorageContainerLoader(
    conn_str="<conn_str>", container="<container>", prefix="<prefix>"
)
```

```python theme={null}
loader.load()
```

```output theme={null}
[Document(page_content='Lorem ipsum dolor sit amet.', lookup_str='', metadata={'source': '/var/folders/y6/8_bzdg295ld6s1_97_12m4lr0000gn/T/tmpujbkzf_l/fake.docx'}, lookup_index=0)]
```

```python theme={null}
```