> 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/storage_handler/renewalterritory.md).

# RenewalTerritory

This is the interface for renewing purchased territory.

```golang
// RenewalTerritory renewal of territory validity period
//   - territory_name: territory name
//   - days_count: renewal days
//
// Return:
//   - string: block hash
//   - error: error message
func (c *ChainClient) RenewalTerritory(territory_name string, days_count uint32) (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()

    // renewal for 100 days
    fmt.Println(sdk.RenewalTerritory("territory_name", 100))
}
```


---

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