# Bridge GoodDollars

Currently, there's no UI for bridging. This guide will teach how you can bridge using blockchain explorers and Metamask:

### Bridging Instructions

{% hint style="info" %}
In blocker explorer, make sure you press`connect to web3` button
{% endhint %}

<figure><img src="https://3326799749-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LfsEjhezedCgGFXCkms%2Fuploads%2FMwwGGZieUwDqiHKZzpmn%2Fimage.png?alt=media&#x26;token=0f204d1d-7d7d-4a5c-9e6f-8cc52defb917" alt=""><figcaption><p>Connect to Web3 Button</p></figcaption></figure>

{% hint style="info" %}
The current maximum amount you can bridge is 300M G$s.\
If you plan to bridge amounts in that order, you must first verify that your request is within limits. See the Verifying bridge limits section.
{% endhint %}

1. **Approve the bridge to spend G$ tokens**
   1. Go to the G$ Contract page on the chain you are bridging from
      * Fuse: <https://explorer.fuse.io/address/0x495d133B938596C9984d462F007B676bDc57eCEC/write-contract#address-tabs>
      * Celo: <https://celoscan.io/address/0x62b8b11039fcfe5ab0c56e502b1c372a3d2a9c7a#writeProxyContract>
      * Ethereum: <https://etherscan.io/address/0x67C5870b4A41D4Ebef24d2456547A03F1f3e094B#writeContract>
      * XDC:\
        <https://xdcscan.com/address/0xEC2136843a983885AebF2feB3931F73A8eBEe50c>
   2. Open the `approve` method box and enter in the `spender` box the bridge address `0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5` (same on all chains) and in the `value/amount` enter the number of G$ units you want to bridge.\
      **Notice: In Fuse/Ethereum the units are in 2 decimals meaning that if you want to bridge 1.15 tokens this is equal to 115 units. On Celo the units are in 18 decimals, so 1.15 is 1150000000000000000 units.**\
      Press the \`write\` button and approve the transaction in your wallet.
2. **Find out the estimated bridge fee by going to** [https://goodserver.gooddollar.org/bridge/estimatefees<br>](https://goodserver.gooddollar.org/bridge/estimatefees)Record the amount for the service and path you are bridging, for example if you are bridging from Ethereum to Celo using Axelar then use the value under `AXL_ETH_TO_CELO` if using LayerZero then use the value under `LZ_ETH_TO_CELO`\
   **At the moment Axelar service is usually cheaper.**\
   **Bridging from/to Fuse and XDC is only supported by LayerZero.**
3. **Issue bridge request**
   1. Go to the Bridge Contract page on the chain you are bridging from
      * Fuse: <https://explorer.fuse.io/address/0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5/write-proxy#address-tabs>
      * Celo: <https://celoscan.io/address/0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5#writeProxyContract>
      * Ethereum: <https://etherscan.io/address/0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5#writeProxyContract>
      * XDC: <https://xdcscan.com/address/0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5#writeProxyContract>
   2. Open/Scroll to the bridgeTo method box and enter in `target` the wallet address of the recipient, in `targetChainId` enter the chain id you are bridging to (1-Ethereum 122-Fuse 42220-Celo 50-XDC), in `amount` enter the same value as used in step #1 (the approve step), in `bridge` enter 0 for Axelar and 1 for LayzerZero. Lastly in `value/payableAmount` enter the estimated bridge fee from step #2.\
      **Make sure you have at least that amount of native tokens in your wallet**\
      press the \`write\` button

{% hint style="info" %}
When bridging from Ethereum, it can take 15 minutes for the transfer to be executed.
{% endhint %}

### Verifying bridge limits

The bridge enforces some transfer limits for security. To make sure your request will go smoothly it is recommended to first check on the **target** chain that your request is within limits.

1. Go to the Bridge Contract page on the chain you are **bridging to**
   * Fuse: <https://explorer.fuse.io/address/0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5/read-proxy#address-tabs>
   * Celo: <https://celoscan.io/address/0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5#readProxyContract>
   * Ethereum: <https://etherscan.io/address/0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5#readProxyContract>
   * XDC <https://xdcscan.com/address/0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5#readProxyContract>
2. Open/Scroll to the `canBridge` method and enter in `from` the wallet address where you are bridging from and in `amount` enter the amount of **units in 18 decimals** that you want to bridge then press the `Query` button.

### Troubleshooting

* You can see the status of your bridge request by copying the bridge request transaction hash from step #3 and pasting it in Axelar or Layerzero scanners according to the service you used.\
  Axelar Scanner: <https://axelarscan.io/>\
  Layzerzero Scanner: <https://layerzeroscan.com/>
* If the transaction did not reach the final step on Axelar or Layerzero consult with their documentation or support channels.\
  <https://docs.axelar.dev/dev/general-message-passing/recovery>
* In case the transaction has been executed by Axelar or Layzezero but still failed to transfer the G$s then contact us via our support form here:

{% embed url="<https://gooddollar.typeform.com/to/J47K2R26>" %}

### Fuse Bridge

Fuse runs a bridge that enables bridging between Ethereum and Fuse. It has an easy-to-use UI here: <https://app.voltage.finance/#/bridge>