Ethereum ↔ Fuse ERC20 Tokens

Fuse ERC20 bridge is used to relay the ERC20 tokens between Fuse and Ethereum networks.

Architecture Overview

This bridge is two layer bridge. In the base level the Arbitrary Message Bridge (AMB) is responsible for relaying messages between the networks. On top of the AMB, the pluggable mediators implement a contract logic of token relaying of various assets. More info https://docs.tokenbridge.net/amb-bridge/about-amb-bridge

Contracts

Home side of the bridge on the Fuse network: 0xc2220646E1E76D5fF3a441eDd9E8EFF0e4A8EF03

Foreign side of the bridge on the Ethereum network: 0xf301d525da003e874DF574BCdd309a6BF0535bb6

Home side of the AMB bridge on the Fuse network: 0x2CA5411c4bf447Cc27CD6E6d1d046f922A27C399

Foreign side of the AMB bridge on the Ethereum network: 0x63C47c296B63bE888e9af376bd927C835014039f

Source Code

GitHub - fuseio/tokenbridge-contracts: Smart contracts for TokenBridgeGitHub

How to use

Any ERC20 token can be bridged for Ethereum to the Fuse Network. If the token is relayed for the first time. A bridged token, paired with the original token, will be created on the Fuse network.

To send token from the Ethereum network:

1. Approve the ERC20 tokens to be spent by the Foreign ERC20 bridge.

2. Call relayTokens function on the bridge contract

the relayTokens method will lock the ERC20 tokens on the foreign bridge. After a couple of confirmations, an equal amount of the Fuse ERC20 token will be sent from the home bridge contract.

To send tokens from Fuse network

1. Approve the ERC20 tokens to be spent by the Home ERC20 bridge.

2. Call relayTokens function on the bridge contract

the relayTokens method will lock the bridged tokens on the home bridge. Then, an equal amount of the paired ERC20 token will be sent from the foreign bridge contract.