@maticnetwork/fx-portal
Advanced tools
FxPortal for Polygon(prev Matic)Chain. No mapping. Seamless communication with Ethereum Network.
Audit - Fx-Portal Contracts Audit by Halborn
It is a powerful yet simple implementation Polygon state sync mechanism. Polygon PoS bridge is based on it. The code in the examples folder are examples of the usage of this methodology. You can use these examples to build your own implementations or own custom bridge.
In short, it's Meta bridge. This bridge allows any state-syncs without mapping.
What about PoS portal?
PoS Portal is another bridge, but it works only for few ERC standards and requires mappings. It is more developer-friendly, allows customization without much headache.
While Fx-portal focuses on permissionless-ness and flexibility, a developer might have to write more code but more customizable than PoS Portal. It requires no mapping.
Can I build my bridge?
Yes. You can check docs here: https://docs.matic.network/docs/develop/l1-l2-communication/ethereum-to-matic https://docs.matic.network/docs/develop/l1-l2-communication/matic-to-ethereum
FxChild (FxChild.sol) and FxRoot (FxRoot.sol) are main contracts on which mapping-less bridge works. It calls and passes data to user-defined methods on another chain without mapping.
Mumbai
| Contract | Deployed address |
|---|---|
| FxRoot (Goerli) | 0x3d1d3E34f7fB6D26245E6640E1c50710eFFf15bA |
| FxChild (Mumbai) | 0xCf73231F28B7331BBe3124B907840A94851f9f11 |
Mainnet
| Contract | Deployed address |
|---|---|
| FxRoot (Ethereum Mainnet) | 0xfe5e5D361b2ad62c541bAb87C45a0B9B018389a2 |
| FxChild (Matic Mainnnet) | 0x8397259c983751DAf40400790063935a11afa28a |
You can deploy your own FxChild and FxRoot, but no need. Except you want to have some fun and have extra ETH to throw away.
FAQs
FxPortal for Polygon chain. No mapping. Seamless.
We found that @maticnetwork/fx-portal demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 7 open source maintainers collaborating on the project.
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