init

services/walletConnect.js

@@ -0,0 +1,51 @@
+import BN from 'bignumber.js'
+import WalletConnectProvider from '@walletconnect/web3-provider'
+
+import { NETWORKS } from '@/constants'
+import networkConfig from '@/networkConfig'
+
+const { WC_BRIDGE } = process.env
+
+const WALLET_CONNECT_INTERVAL = 1000
+const SUPPORTED_WALLETS = ['metamask', 'trust', 'imtoken', 'genericWeb3']
+
+const RECONNECT_TIME = 3600000 // 1 hour
+
+const getFirstRpcUrls = (acc, netId) => {
+  const { rpcUrls } = networkConfig[`netId${netId}`]
+  const [{ url }] = Object.values(rpcUrls)
+
+  return { ...acc, [netId]: url }
+}
+
+const RPC = NETWORKS.reduce(getFirstRpcUrls, {})
+
+const walletConnectConnector = (chainId) => {
+  try {
+    const prevConnection = localStorage.getItem('walletconnectTimeStamp')
+
+    if (new BN(Date.now()).minus(prevConnection).isGreaterThanOrEqualTo(RECONNECT_TIME)) {
+      localStorage.removeItem('walletconnect')
+    }
+
+    const provider = new WalletConnectProvider({
+      chainId,
+      rpc: RPC,
+      pollingInterval: WALLET_CONNECT_INTERVAL,
+      qrcodeModalOptions: {
+        mobileLinks: SUPPORTED_WALLETS
+      },
+      bridge: WC_BRIDGE
+    })
+
+    provider.injectedRequest = provider.enable
+
+    localStorage.setItem('walletconnectTimeStamp', Date.now())
+    return provider
+  } catch (err) {
+    console.log(err)
+    throw new Error('WalletConnect error: ', err)
+  }
+}
+
+export default walletConnectConnector