> For the complete documentation index, see [llms.txt](https://doc.cess.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.cess.network/products/deoss/api_description/download.md).

# Download File

This interface is used to download a file with a specified fid. If you encrypted the file when you uploaded it, you also need to tell the gateway your cipher to decrypt your file.

**HTTP Interface:**

GET   /file/download/

**Request Header:**

| key              | description |
| ---------------- | ----------- |
| Cipher(optional) | cipher      |

**Request example:**

```shell
curl -X GET -o <save_file> URL/file/download/<fid>
```