# UploadDeclaration

This is the interface used to generate file storage orders.

```golang
// UploadDeclaration generate a file storage order
//   - fid: file identification
//   - segment: segment info
//   - user: UserBrief
//   - filename: file name
//   - filesize: file size
//
// Return:
//   - string: block hash
//   - error: error message
func (c *ChainClient) UploadDeclaration(fid string, segment []SegmentList, user UserBrief, filesize uint64) (string, error)
```

For the type definition, please refer to [SegmentList](https://github.com/CESSProject/doc-v2/blob/main/developer/cess-sdk/sdk-golang/chain_related/chain_type.md#SegmentList), [UserBrief](https://github.com/CESSProject/doc-v2/blob/main/developer/cess-sdk/sdk-golang/chain_related/chain_type.md#UserBrief)

This interface has the same functionality as GenerateStorageOrder, please refer to [GenerateStorageOrder](https://doc.cess.network/developer/cess-sdk/sdk-golang/chain_related/file_bank/broken-reference)