Emery Bridge UI guide
The Emery bridge allows you to securely transfer tokens between CENNZnet and Ethereum. You can use the bridge through the CENNZnet API, or the Bridge UI, which is a DApp that lets you access the Emery bridge. This guide demonstrates how to use the Bridge UI.
To learn more about how the Emery bridge works, see the following articles:
Before you start: required software
Before using the Emery bridge UI you will need to provide it with access to your CENNZnet and Ethereum accounts. To do this you will need to use a browser with the following 2 wallets installed:
- The CENNZnet Extension – the CENNZnet wallet
- MetaMask – the Ethereum wallet
Add your accounts to the wallets
Once you’ve installed the wallets, make sure your relevant CENNZnet and Ethereum accounts are added to both wallets. This allows the Bridge UI to access your accounts.
How do bridge gas fees work?
Transferring tokens between Ethereum and CENNZnet involves transactions on both chains. Therefore every bridge transaction requires ETH as well as CPAY gas fees.
To improve the experience for our users, we are waiving the CPAY gas fees for deposits made to CENNZnet. You will therefore only need to pay for the Ethereum gas fees when transferring to CENNZnet.
The Emery Token Bridge
Entering the bridge
Before you enter the Emery Bridge, you will be asked to connect your 2 wallets to the Bridge UI. This gives the Bridge UI access to your CENNZnet and Ethereum accounts.
To do this you will need to:
Step 1. Connect Metamask
Clicking on the “CONNECT METAMASK WALLET” button will give you popups from MetaMask, asking for your permission to connect to the Bridge UI.
Click “Connect” to complete the process.
Step 2. Connect CENNZnet Extension
Clicking on the “CONNECT CENNZNET WALLET” button will give you popups from CENNZnet Extension.
Step 3. Enter the bridge
Once both wallets are connected, you can enter the bridge.
Emery Bridge Settings
At the top of the page you will find settings. The NETWORK and the CENNZnet WALLET buttons show which networks and CENNZnet account the bridge is connected to. Clicking on these buttons will display a menu that allows you to select the specific networks and account you wish to use.
Network selection
The network selection menu allows you to select a network to connect to.
Note: selecting one of the test networks allows for beta testing and trying out the bridge with test tokens.
When you switch networks, MetaMask will display a popup requesting that you to switch to the new network. You will need to click Switch Network on this pop up to complete the switch.
The CENNZnet WALLET menu
Clicking on the CENNZnet WALLET button at the top right corner of the page will bring up the CENNZnet WALLET menu. Here you can see the tokens available in your CENNZnet account.
How to transfer tokens from Ethereum to CENNZnet
Click on the Deposit tab to transfer tokens from Ethereum to CENNZnet.
You will need to:
- Select the token type from the Token menu
- Specify the amount
- Specify the CENNZnet recipient address
When you press the DEPOSIT button, MetaMask will show a window asking you to confirm the transaction.
Once the transaction is confirmed, you can view the transaction in MetaMask and Etherscan. This can take a couple of minutes to come through.
How to transfer tokens from CENNZnet to Ethereum
Click on the Withdraw tab to transfer tokens from CENNZnet to Ethereum.
You will need to:
- Select the token type from the Token menu
- Specify the amount
The tokens will be withdrawn from the CENNZnet account connected to the bridge.
When you press the WITHDRAW button, you will need to perform 2 steps:
- Pay for the CENNZnet gas fee using the CENNZnet Extension
- Pay for the Ethereum gas fee using MetaMask
Once the transaction is confirmed you can view the transaction in UNcover. Your balance will be updated in the CENNZnet WALLET menu. This can take a couple of minutes to update.
Paying for the CENNZnet gas fee
Paying for the Ethereum gas fee
Congratulations, now you have successfully transferred your tokens!
