> For the complete documentation index, see [llms.txt](/llms.txt)

# Switch Network

Switch the active network for the dApp Kit instance between mainnet, testnet, and other networks.



The `switchNetwork` action changes the currently selected network that the dApp Kit client is
configured to use.

<Callout type="info">
  Network switching only affects your app's client connection. The wallet itself is not affected by
  this change, and wallets are not notified when the network changes in the app.
</Callout>

## Usage

```typescript
import { createDAppKit } from '@mysten/dapp-kit-core';
import { SuiGrpcClient } from '@mysten/sui/grpc';

const GRPC_URLS = {
	mainnet: 'https://fullnode.mainnet.sui.io:443',
	testnet: 'https://fullnode.testnet.sui.io:443',
} as const;

const dAppKit = createDAppKit({
	networks: ['mainnet', 'testnet'],
	defaultNetwork: 'mainnet',
	createClient: (network) => new SuiGrpcClient({ network, baseUrl: GRPC_URLS[network] }),
});

// Switch to a different network
dAppKit.switchNetwork('testnet');
```

## Parameters

* **`network`:** `TNetworks[number]`: The network to switch to. Must be one of the networks
  configured when creating the dApp Kit instance.

## Return value

Returns `void`. The action completes synchronously and updates the network state immediately.