# Network Configuration

## Switch Network on Testnet

On Testnet, you will set the network to Goerli.

```javascript
import Fortmatic from 'fortmatic';
import Web3 from 'web3';

// Setting test network to Goerli
const fm = new Fortmatic('YOUR_TEST_API_KEY', 'goerli');
window.web3 = new Web3(fm.getProvider());
```

## Switch Network to Custom Node

You can choose to use your own node, like a development test node or a sidechain. We currently support: 

* [Matic](https://matic.network/) : node url under `matic.com` domain
  * Testnet URL: [https://testnet2.matic.network](https://testnet2.matic.network/)
  * Mainnet URL: <https://alpha.ethereum.matic.network>
* [Skale](https://skale.network/): node url under `skalenode.com` domain
  * Get started with requesting a Skale node:\
    <https://skale.network/docs/developers/getting-started/beginner>
* Localhost: node url with `localhost` or `127.0.0.1`

Please contact us at [our support channel](https://t.me/fortmatic) if you want to use other nodes.

```javascript
import Fortmatic from 'fortmatic';
import Web3 from 'web3';

const customNodeOptions = {
    rpcUrl: 'http://127.0.0.1:7545', // your own node url
    chainId: 1011 // chainId of your own node
}

// Setting network to localhost blockchain
const fm = new Fortmatic('YOUR_TEST_API_KEY', customNodeOptions);
window.web3 = new Web3(fm.getProvider());
```

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