> 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/developer/cess-sdk/sdk-golang/chain_related/file_bank/transferreport.md).

# TransferReport

This is the interface for the storage miner to report that the fragment transfer is complete, telling the chain that it has been stored.

```golang
// TransferReport is used by miners to report that a file has been transferred
//   - index: index of the file fragment
//   - fid: file identification
//
// Return:
//   - string: block hash
//   - error: error message
//
// Note:
//   - for storage miner use only
func (c *ChainClient) TransferReport(index uint8, fid string) (string, error)
```

Example code:

```golang
package main

import (
    "context"
    "fmt"
    "time"

    sdkgo "github.com/CESSProject/cess-go-sdk"
)

// Substrate well-known mnemonic:
//
//   - https://github.com/substrate-developer-hub/substrate-developer-hub.github.io/issues/613
//   - cXgaee2N8E77JJv9gdsGAckv1Qsf3hqWYf7NL4q6ZuQzuAUtB
var MY_MNEMONIC = "bottom drive obey lake curtain smoke basket hold race lonely fit walk"

var RPC_ADDRS = []string{
    //testnet
    "wss://testnet-rpc.cess.network/ws/",
}

func main() {
    sdk, err := sdkgo.New(
        context.Background(),
        sdkgo.ConnectRpcAddrs(RPC_ADDRS),
        sdkgo.Mnemonic(MY_MNEMONIC),
        sdkgo.TransactionTimeout(time.Second*10),
    )
    if err != nil {
        panic(err)
    }
    defer sdk.Close()

    fmt.Println(sdk.TransferReport(0, "b984d0de1428d0011...a26d41f3f7abaa5b6c450"))
}
```