add avalanche bridge provider

frontend/src/App.tsx

@@ -13,7 +13,7 @@ import { Bridge as IBridge } from './types/Bridge';
 import Header from './components/Header';
 import { getSNTAvalanche, getSNTEthereum, getBridge } from './utils/contracts';
 import { goerliProvider, fujiProvider } from './utils/providers'
-import { ethereumAddress } from './constants/bridges';
+import { ethereumAddress, fujiAddress } from './constants/bridges';
 
 const { useState, useEffect } = React;
 
@@ -25,6 +25,7 @@ function App() {
   const [sntEthereum, setSntEthereum] = useState<ERC20>();
   const [sntAvalanche, setSntAvalanche] = useState<ERC20>();
   const [ethereumBridge, setEthereumBridge] = useState<IBridge>();
+  const [avalancheBridge, setAvalancheBridge] = useState<IBridge>();
 
   useEffect(() => {
     if (!provider) getAndSetProvider(setProvider);
@@ -45,8 +46,11 @@ function App() {
   useEffect(() => {
     //TODO use ethereum provider
     if (!provider) return
-    const bridge: IBridge = getBridge(ethereumAddress, provider);
-    setEthereumBridge(bridge);
+    //TODO implement ava bridge
+    const avalancheBridge: IBridge = getBridge(fujiAddress, fujiProvider);
+    const ethereumBridge: IBridge = getBridge(ethereumAddress, provider);
+    setEthereumBridge(ethereumBridge);
+    setAvalancheBridge(avalancheBridge);
   }, [provider])
 
   useEffect(() => {

frontend/src/components/Bridge.tsx

@@ -27,7 +27,7 @@ interface Props {
   provider: Web3Provider | undefined,
   sntEthereum: ERC20 | undefined,
   sntAvalanche: ERC20 | undefined,
-  ethereumBridge: IBridge
+  ethereumBridge: IBridge,
 }
 const FUJI_BRIDGE = '0xE57Eb49689bCAE4dE61D326F7E79Bd14aB527f0f';
 const GOERLI_BRIDGE = '0xD0E461b1Dc56503fC72565FA964C28E274146D44';

frontend/src/constants/bridges.ts

@@ -1,2 +1,4 @@
 export const ethereumAddress = '0xD0E461b1Dc56503fC72565FA964C28E274146D44';
 export const ethereumSNTHandlerAddress = '0xf41938b2464B908D5C10287bbfBE69dd368DaC3a';
+export const fujiAddress = '0x5055f5Ef1dF13f1018BA5e203545127Ec44523aD';
+export const fujiSNTHandlerAddress = '0xCaBBA5cE36305FD615C77e9CF202Fd09Bc79ad03';