feat: allow walletconnect on testnets (#1389)

* try walletconnect multinetwork

* clean up environment variables for multinetwork

* remove irrelevant config

* move some stuff around
Co-authored-by: Noah Zinsmeister <noahwz@gmail.com>

.env

-REACT_APP_CHAIN_ID="1"
-REACT_APP_NETWORK_URL="https://mainnet.infura.io/v3/4bf032f2d38a4ed6bb975b80d6340847"
+REACT_APP_INFURA_KEY="4bf032f2d38a4ed6bb975b80d6340847"
 REACT_APP_WALLETCONNECT_BRIDGE_URL="https://uniswap.bridge.walletconnect.org"
 # Because we use storybook which has its own babel-loader dependency @ 8.2.2, where react-scripts uses 8.1.0
 SKIP_PREFLIGHT_CHECK=true
\ No newline at end of file

.env.production

-REACT_APP_CHAIN_ID="1"
-REACT_APP_NETWORK_URL="https://mainnet.infura.io/v3/099fc58e0de9451d80b18d7c74caa7c1"
+REACT_APP_INFURA_KEY="099fc58e0de9451d80b18d7c74caa7c1"
 REACT_APP_PORTIS_ID="c0e2bf01-4b08-4fd5-ac7b-8e26b58cd236"
 REACT_APP_FORTMATIC_KEY="pk_live_F937DF033A1666BF"
 REACT_APP_GOOGLE_ANALYTICS_ID="UA-128182339-4"

README.md

@@ -27,7 +27,7 @@ or visit [app.uniswap.org](https://app.uniswap.org).
 ### Install Dependencies
 
 ```bash
-yarn
+yarn install
 ```
 
 ### Run
@@ -36,19 +36,6 @@ yarn
 yarn start
 ```
 
-### Configuring the environment (optional)
-
-To have the interface default to a different network when a wallet is not connected:
-
-1. Make a copy of `.env` named `.env.local`
-2. Change `REACT_APP_NETWORK_ID` to `"{YOUR_NETWORK_ID}"`
-3. Change `REACT_APP_NETWORK_URL` to e.g. `"https://{YOUR_NETWORK_ID}.infura.io/v3/{YOUR_INFURA_KEY}"`
-
-Note that the interface only works on testnets where both
-[Uniswap V2](https://uniswap.org/docs/v2/smart-contracts/factory/) and
-[multicall](https://github.com/makerdao/multicall) are deployed.
-The interface will not work on other networks.
-
 ## Contributions
 
 **Please open all pull requests against the `main` branch.**

package.json

@@ -56,7 +56,7 @@
     "@web3-react/fortmatic-connector": "^6.0.9",
     "@web3-react/injected-connector": "^6.0.7",
     "@web3-react/portis-connector": "^6.0.9",
-    "@web3-react/walletconnect-connector": "^6.1.1",
+    "@web3-react/walletconnect-connector": "^6.2.0",
     "@web3-react/walletlink-connector": "^6.2.0",
     "ajv": "^6.12.3",
     "cids": "^1.0.0",

src/connectors/index.ts

 import { Web3Provider } from '@ethersproject/providers'
+import { ChainId } from '@uniswap/sdk-core'
 import { InjectedConnector } from '@web3-react/injected-connector'
 import { WalletConnectConnector } from '@web3-react/walletconnect-connector'
 import { WalletLinkConnector } from '@web3-react/walletlink-connector'
 import { PortisConnector } from '@web3-react/portis-connector'
+import getLibrary from '../utils/getLibrary'
 
 import { FortmaticConnector } from './Fortmatic'
 import { NetworkConnector } from './NetworkConnector'
 import UNISWAP_LOGO_URL from '../assets/svg/logo.svg'
 
-const NETWORK_URL = process.env.REACT_APP_NETWORK_URL
+const INFURA_KEY = process.env.REACT_APP_INFURA_KEY
 const FORMATIC_KEY = process.env.REACT_APP_FORTMATIC_KEY
 const PORTIS_ID = process.env.REACT_APP_PORTIS_ID
 const WALLETCONNECT_BRIDGE_URL = process.env.REACT_APP_WALLETCONNECT_BRIDGE_URL
 
-export const NETWORK_CHAIN_ID: number = parseInt(process.env.REACT_APP_CHAIN_ID ?? '1')
+if (typeof INFURA_KEY === 'undefined') {
+  throw new Error(`REACT_APP_INFURA_KEY must be a defined environment variable`)
+}
 
-if (typeof NETWORK_URL === 'undefined') {
-  throw new Error(`REACT_APP_NETWORK_URL must be a defined environment variable`)
+const NETWORK_URLS: {
+  [chainId in ChainId]: string
+} = {
+  [ChainId.MAINNET]: `https://mainnet.infura.io/v3/${INFURA_KEY}`,
+  [ChainId.RINKEBY]: `https://rinkeby.infura.io/v3/${INFURA_KEY}`,
+  [ChainId.ROPSTEN]: `https://ropsten.infura.io/v3/${INFURA_KEY}`,
+  [ChainId.GÖRLI]: `https://goerli.infura.io/v3/${INFURA_KEY}`,
+  [ChainId.KOVAN]: `https://kovan.infura.io/v3/${INFURA_KEY}`,
 }
 
+const SUPPORTED_CHAIN_IDS = [ChainId.MAINNET, ChainId.RINKEBY, ChainId.ROPSTEN, ChainId.KOVAN, ChainId.GÖRLI]
+
 export const network = new NetworkConnector({
-  urls: { [NETWORK_CHAIN_ID]: NETWORK_URL },
+  urls: NETWORK_URLS,
+  defaultChainId: ChainId.MAINNET,
 })
 
 let networkLibrary: Web3Provider | undefined
 export function getNetworkLibrary(): Web3Provider {
-  return (networkLibrary = networkLibrary ?? new Web3Provider(network.provider as any))
+  return (networkLibrary = networkLibrary ?? getLibrary(network.provider))
 }
 
 export const injected = new InjectedConnector({
-  supportedChainIds: [1, 3, 4, 5, 42],
+  supportedChainIds: SUPPORTED_CHAIN_IDS,
 })
 
-// mainnet only
 export const walletconnect = new WalletConnectConnector({
-  rpc: { 1: NETWORK_URL },
+  supportedChainIds: SUPPORTED_CHAIN_IDS,
+  infuraId: INFURA_KEY, // obviously a hack
   bridge: WALLETCONNECT_BRIDGE_URL,
   qrcode: true,
   pollingInterval: 15000,
@@ -54,7 +67,7 @@ export const portis = new PortisConnector({
 
 // mainnet only
 export const walletlink = new WalletLinkConnector({
-  url: NETWORK_URL,
+  url: NETWORK_URLS[ChainId.MAINNET],
   appName: 'Uniswap',
   appLogoUrl: UNISWAP_LOGO_URL,
 })

src/hooks/useFetchListCallback.ts

@@ -3,7 +3,7 @@ import { ChainId } from '@uniswap/sdk-core'
 import { TokenList } from '@uniswap/token-lists'
 import { useCallback } from 'react'
 import { useDispatch } from 'react-redux'
-import { getNetworkLibrary, NETWORK_CHAIN_ID } from '../connectors'
+import { getNetworkLibrary } from '../connectors'
 import { AppDispatch } from '../state'
 import { fetchTokenList } from '../state/lists/actions'
 import getTokenList from '../utils/getTokenList'
@@ -15,14 +15,13 @@ export function useFetchListCallback(): (listUrl: string, sendDispatch?: boolean
   const dispatch = useDispatch<AppDispatch>()
 
   const ensResolver = useCallback(
-    (ensName: string) => {
+    async (ensName: string) => {
       if (!library || chainId !== ChainId.MAINNET) {
-        if (NETWORK_CHAIN_ID === ChainId.MAINNET) {
         const networkLibrary = getNetworkLibrary()
-          if (networkLibrary) {
+        const network = await networkLibrary.getNetwork()
+        if (networkLibrary && network.chainId === ChainId.MAINNET) {
           return resolveENSContentHash(ensName, networkLibrary)
         }
-        }
         throw new Error('Could not construct mainnet ENS resolver')
       }
       return resolveENSContentHash(ensName, library)

yarn.lock

@@ -4582,7 +4582,7 @@
     js-sha3 "0.8.0"
     query-string "6.13.5"
 
-"@walletconnect/web3-provider@^1.3.6":
+"@walletconnect/web3-provider@^1.4.1":
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/@walletconnect/web3-provider/-/web3-provider-1.4.1.tgz#34f6319ab2473ab9ff0fcf1e8bc280c697fa01ff"
   integrity sha512-gUoBGM5hdtcXSoLXDTG1/WTamnUNpEWfaYMIVkfVnvVFd4whIjb0iOW5ywvDOf/49wq0C2+QThZL2Wc+r+jKLA==
@@ -4646,12 +4646,12 @@
   resolved "https://registry.yarnpkg.com/@web3-react/types/-/types-6.0.7.tgz#34a6204224467eedc6123abaf55fbb6baeb2809f"
   integrity sha512-ofGmfDhxmNT1/P/MgVa8IKSkCStFiyvXe+U5tyZurKdrtTDFU+wJ/LxClPDtFerWpczNFPUSrKcuhfPX1sI6+A==
 
-"@web3-react/walletconnect-connector@^6.1.1":
-  version "6.1.9"
-  resolved "https://registry.yarnpkg.com/@web3-react/walletconnect-connector/-/walletconnect-connector-6.1.9.tgz#3459ccf2a2ac7ae8f155645d29a517712afeb731"
-  integrity sha512-gPtcFFRAnRgqhmBjhH+dtuG3cx23X+JOX+mRO1D7dN+8yxLZhLhjOZlJFECH5hkC20KMM/sk+rq2yy6Vqp76PQ==
+"@web3-react/walletconnect-connector@^6.2.0":
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/@web3-react/walletconnect-connector/-/walletconnect-connector-6.2.0.tgz#5451f332a25b94cf7e615a20cc7d22a27532629d"
+  integrity sha512-F6xYwI3MKiSdKa0248y2wBW0kTDddc2/IGn4CjMSYe0DJFggtxFsAAGHQTRmvwDcLlgQwtemJJ0cTA82MOVfEg==
   dependencies:
-    "@walletconnect/web3-provider" "^1.3.6"
+    "@walletconnect/web3-provider" "^1.4.1"
     "@web3-react/abstract-connector" "^6.0.7"
     "@web3-react/types" "^6.0.7"
     tiny-invariant "^1.0.6"