remove unused functions, typescript (#725)

* TypeScript in the utils directory, README fixes

* Remove unused methods

* Added unnecessary space

* Some env variable cleanup

* Bug in change

* Another file to ts

.env.local.example

@@ -2,4 +2,3 @@ REACT_APP_CHAIN_ID="1"
 REACT_APP_NETWORK_URL=""
 REACT_APP_PORTIS_ID=""
 REACT_APP_FORTMATIC_KEY=""
-REACT_APP_IS_PRODUCTION_DEPLOY="false"
\ No newline at end of file

README.md

@@ -6,11 +6,11 @@
 
 This an an open source interface for Uniswap - a protocol for decentralized exchange of Ethereum tokens.
 
-- Website: [uniswap.io](https://uniswap.io/)
-- Docs: [docs.uniswap.io](https://docs.uniswap.io/)
-- Twitter: [@UniswapExchange](https://twitter.com/UniswapExchange)
-- Reddit: [/r/Uniswap](https://www.reddit.com/r/UniSwap/)
-- Email: [contact@uniswap.io](mailto:contact@uniswap.io)
+- Website: [uniswap.org](https://uniswap.org/)
+- Docs: [uniswap.org/docs/](https://uniswap.org/docs/)
+- Twitter: [@UniswapProtocol](https://twitter.com/UniswapProtocol)
+- Reddit: [/r/Uniswap](https://www.reddit.com/r/Uniswap/)
+- Email: [contact@uniswap.org](mailto:contact@uniswap.org)
 - Discord: [Uniswap](https://discord.gg/Y7TF6QA)
 - Whitepaper: [Link](https://hackmd.io/C-DvwDSfSxuh-Gd4WKE_ig)
   

netlify.toml

@@ -14,7 +14,11 @@
   status = 200
 
 [build.environment]
-  REACT_APP_IS_PRODUCTION_DEPLOY = "false"
+  REACT_APP_GOOGLE_ANALYTICS_ID = "UA-128182339-1"
+  REACT_APP_NETWORK_URL = "https://mainnet.infura.io/v3/b8800ce81b8c451698081d269b86692b"
 
 [context.production.environment]
-  REACT_APP_IS_PRODUCTION_DEPLOY = "true"
+  REACT_APP_CHAIN_ID = "1"
+  REACT_APP_NETWORK_URL = "https://mainnet.infura.io/v3/2acb2baa4c06402792e0c701a3697d10"
+  REACT_APP_FORTMATIC_KEY = "pk_live_F937DF033A1666BF"
+  REACT_APP_PORTIS_ID = "c0e2bf01-4b08-4fd5-ac7b-8e26b58cd236"

package.json

@@ -13,7 +13,7 @@
     "@types/node": "^13.7.4",
     "@types/react": "^16.9.21",
     "@types/react-dom": "^16.9.5",
-    "@uniswap/sdk": "^2.0.1",
+    "@uniswap/sdk": "^2.0.3",
     "@uniswap/v2-core": "1.0.0",
     "@uniswap/v2-periphery": "1.0.0-beta.0",
     "@web3-react/core": "^6.0.2",
@@ -32,6 +32,7 @@
     "i18next-xhr-backend": "^2.0.1",
     "jazzicon": "^1.5.0",
     "polished": "^3.3.2",
+    "prettier": "^1.17.0",
     "qrcode.react": "^0.9.3",
     "react": "^16.8.6",
     "react-device-detect": "^1.6.2",
@@ -78,8 +79,5 @@
       "last 1 safari version"
     ]
   },
-  "license": "GPL-3.0-or-later",
-  "devDependencies": {
-    "prettier": "^1.17.0"
-  }
+  "license": "GPL-3.0-or-later"
 }
\ No newline at end of file

src/components/ExchangePage/index.tsx

@@ -595,7 +595,7 @@ function ExchangePage({ sendingInput = false, history, params }) {
     // get token contract if needed
     let estimate: Function, method: Function, args, value
     if (tokens[Field.INPUT] === WETH[chainId]) {
-      signer
+      (signer as any)
         .sendTransaction({ to: recipient.toString(), value: hex(parsedAmounts[Field.INPUT].raw) })
         .then(response => {
           setTxHash(response.hash)

src/connectors/index.js

@@ -7,10 +7,7 @@ import { NetworkConnector } from './Network'
 import { FortmaticConnector } from './Fortmatic'
 
 const POLLING_INTERVAL = 10000
-const NETWORK_URL =
-  process.env.REACT_APP_IS_PRODUCTION_DEPLOY === 'true'
-    ? process.env.REACT_APP_NETWORK_URL_PROD
-    : process.env.REACT_APP_NETWORK_URL
+const NETWORK_URL = process.env.REACT_APP_NETWORK_URL
 
 export const network = new NetworkConnector({
   urls: { [Number(process.env.REACT_APP_CHAIN_ID)]: NETWORK_URL },

src/index.js → src/index.tsx

@@ -3,6 +3,7 @@ import ReactDOM from 'react-dom'
 import ReactGA from 'react-ga'
 import { Web3ReactProvider, createWeb3ReactRoot } from '@web3-react/core'
 import { ethers } from 'ethers'
+import { Web3Provider } from 'ethers/providers'
 
 import { NetworkContextName } from './constants'
 import { isMobile } from 'react-device-detect'
@@ -19,19 +20,19 @@ import './i18n'
 
 const Web3ProviderNetwork = createWeb3ReactRoot(NetworkContextName)
 
-function getLibrary(provider) {
+function getLibrary(provider): Web3Provider {
   const library = new ethers.providers.Web3Provider(provider)
   library.pollingInterval = 10000
   return library
 }
 
 if (process.env.NODE_ENV === 'production') {
-  ReactGA.initialize('UA-128182339-1')
+  ReactGA.initialize(process.env.REACT_APP_GOOGLE_ANALYTICS_ID)
   ReactGA.set({
-    customBrowserType: !isMobile ? 'desktop' : window.web3 || window.ethereum ? 'mobileWeb3' : 'mobileRegular'
+    customBrowserType: !isMobile ? 'desktop' : 'web3' in window || 'ethereum' in window ? 'mobileWeb3' : 'mobileRegular'
   })
 } else {
-  ReactGA.initialize('test', { testMode: true })
+  ReactGA.initialize('test', { testMode: true, debug: true })
 }
 
 ReactGA.pageview(window.location.pathname + window.location.search)
@@ -57,9 +58,9 @@ function ContextProviders({ children }) {
 function Updaters() {
   return (
     <>
-      <ApplicationContextUpdater />
-      <TransactionContextUpdater />
-      <BalancesContextUpdater />
+      <ApplicationContextUpdater/>
+      <TransactionContextUpdater/>
+      <BalancesContextUpdater/>
     </>
   )
 }
@@ -68,11 +69,11 @@ ReactDOM.render(
   <Web3ReactProvider getLibrary={getLibrary}>
     <Web3ProviderNetwork getLibrary={getLibrary}>
       <ContextProviders>
-        <Updaters />
+        <Updaters/>
         <ThemeProvider>
           <>
-            <GlobalStyle />
-            <App />
+            <GlobalStyle/>
+            <App/>
           </>
         </ThemeProvider>
       </ContextProviders>

src/utils/index.js → src/utils/index.ts

-import { ethers } from 'ethers'
+import { WETH } from '@uniswap/sdk'
 
-import IUniswapV2Pair from '@uniswap/v2-core/build/IUniswapV2Pair.json'
-import IUniswapV2Router01 from '@uniswap/v2-periphery/build/IUniswapV2Router01.json'
+import {abi as IUniswapV2PairABI} from '@uniswap/v2-core/build/IUniswapV2Pair.json'
+import { abi as IUniswapV2Router01ABI } from '@uniswap/v2-periphery/build/IUniswapV2Router01.json'
+import { Contract, ethers, Signer } from 'ethers'
+import { JsonRpcProvider, Provider } from 'ethers/providers'
+import { ROUTER_ADDRESS, SUPPORTED_THEMES } from '../constants'
 
-import ERC20_ABI from '../constants/abis/erc20'
-import ERC20_BYTES32_ABI from '../constants/abis/erc20_bytes32'
-import { SUPPORTED_THEMES, ROUTER_ADDRESS } from '../constants'
-import { bigNumberify, keccak256, defaultAbiCoder, toUtf8Bytes, solidityPack } from 'ethers/utils'
+import ERC20_ABI from '../constants/abis/erc20.json'
+import ERC20_BYTES32_ABI from '../constants/abis/erc20_bytes32.json'
 
 import UncheckedJsonRpcSigner from './signer'
-import { WETH } from '@uniswap/sdk'
 
-export const ERROR_CODES = ['TOKEN_NAME', 'TOKEN_SYMBOL', 'TOKEN_DECIMALS'].reduce(
-  (accumulator, currentValue, currentIndex) => {
-    accumulator[currentValue] = currentIndex
-    return accumulator
-  },
-  {}
-)
+export enum ERROR_CODES {
+  TOKEN_SYMBOL = 1,
+  TOKEN_DECIMALS = 2
+}
 
 export function safeAccess(object, path) {
   return object
@@ -55,26 +52,36 @@ export function getQueryParam(windowLocation, name) {
   return q && q[1]
 }
 
-export function getAllQueryParams() {
-  let params = {}
-
-  params.inputTokenAddress = isAddress(getQueryParam(window.location, 'inputTokenAddress'))
-    ? isAddress(getQueryParam(window.location, 'inputTokenAddress'))
-    : ''
-
-  params.outputTokenAddress = isAddress(getQueryParam(window.location, 'outputTokenAddress'))
-    ? isAddress(getQueryParam(window.location, 'outputTokenAddress'))
-    : ''
+function parseUrlAddress(param: string): string {
+  const addr = isAddress(getQueryParam(window.location, param))
+  if (addr === false) {
+    return ''
+  }
+  return addr
+}
 
-  params.inputTokenAmount = !isNaN(Number(getQueryParam(window.location, 'inputTokenAmount')))
-    ? getQueryParam(window.location, 'inputTokenAmount')
-    : ''
+function parseUrlTokenAmount(paramName: string): string {
+  const value = getQueryParam(window.location, paramName)
+  if (!isNaN(Number(value))) {
+    return ''
+  }
+  return value
+}
 
-  params.outputTokenAmount = !isNaN(Number(getQueryParam(window.location, 'outputTokenAmount')))
-    ? getQueryParam(window.location, 'outputTokenAmount')
-    : ''
+interface QueryParams {
+  readonly inputTokenAddress: string
+  readonly outputTokenAddress: string
+  readonly inputTokenAmount: string
+  readonly outputTokenAmount: string
+}
 
-  return params
+export function getAllQueryParams(): QueryParams {
+  return {
+    inputTokenAddress: parseUrlAddress('inputTokenAddress'),
+    outputTokenAddress: parseUrlAddress('outputTokenAddress'),
+    inputTokenAmount: parseUrlTokenAmount('inputTokenAmount'),
+    outputTokenAmount: parseUrlTokenAmount('outputTokenAmount'),
+  }
 }
 
 export function checkSupportedTheme(themeName) {
@@ -118,7 +125,7 @@ export function shortenTransactionHash(hash, digits = 4) {
   return `${hash.substring(0, digits + 2)}...${hash.substring(66 - digits)}`
 }
 
-export function isAddress(value) {
+export function isAddress(value): string | false {
   try {
     return ethers.utils.getAddress(value.toLowerCase())
   } catch {
@@ -135,12 +142,12 @@ export function calculateGasMargin(value, margin) {
 }
 
 // account is optional
-export function getProviderOrSigner(library, account) {
+export function getProviderOrSigner(library: JsonRpcProvider, account?: string): Signer | Provider {
   return account ? new UncheckedJsonRpcSigner(library.getSigner(account)) : library
 }
 
 // account is optional
-export function getContract(address, ABI, library, account) {
+export function getContract(address: string, ABI: any, library: JsonRpcProvider, account?: string): Contract {
   if (!isAddress(address) || address === ethers.constants.AddressZero) {
     throw Error(`Invalid 'address' parameter '${address}'.`)
   }
@@ -150,13 +157,12 @@ export function getContract(address, ABI, library, account) {
 
 // account is optional
 export function getRouterContract(chainId, library, account) {
-  const router = getContract(ROUTER_ADDRESS, IUniswapV2Router01.abi, library, account)
-  return router
+  return getContract(ROUTER_ADDRESS, IUniswapV2Router01ABI, library, account)
 }
 
 // account is optional
 export function getExchangeContract(pairAddress, library, account) {
-  return getContract(pairAddress, IUniswapV2Pair.abi, library, account)
+  return getContract(pairAddress, IUniswapV2PairABI, library, account)
 }
 
 // get token name
@@ -231,7 +237,7 @@ export async function getTokenBalance(tokenAddress, address, library) {
 export async function getTokenAllowance(address, tokenAddress, spenderAddress, library) {
   if (!isAddress(address) || !isAddress(tokenAddress) || !isAddress(spenderAddress)) {
     throw Error(
-      "Invalid 'address' or 'tokenAddress' or 'spenderAddress' parameter" +
+      'Invalid \'address\' or \'tokenAddress\' or \'spenderAddress\' parameter' +
       `'${address}' or '${tokenAddress}' or '${spenderAddress}'.`
     )
   }
@@ -239,50 +245,6 @@ export async function getTokenAllowance(address, tokenAddress, spenderAddress, l
   return getContract(tokenAddress, ERC20_ABI, library).allowance(address, spenderAddress)
 }
 
-const PERMIT_TYPEHASH = keccak256(
-  toUtf8Bytes('Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)')
-)
-
-export function expandTo18Decimals(n) {
-  return bigNumberify(n).mul(bigNumberify(10).pow(18))
-}
-
-function getDomainSeparator(name, tokenAddress) {
-  return keccak256(
-    defaultAbiCoder.encode(
-      ['bytes32', 'bytes32', 'bytes32', 'uint256', 'address'],
-      [
-        keccak256(toUtf8Bytes('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)')),
-        keccak256(toUtf8Bytes(name)),
-        keccak256(toUtf8Bytes('1')),
-        1,
-        tokenAddress
-      ]
-    )
-  )
-}
-
-export async function getApprovalDigest(token, approve, nonce, deadline) {
-  const name = await token.name()
-  const DOMAIN_SEPARATOR = getDomainSeparator(name, token.address)
-  return keccak256(
-    solidityPack(
-      ['bytes1', 'bytes1', 'bytes32', 'bytes32'],
-      [
-        '0x19',
-        '0x01',
-        DOMAIN_SEPARATOR,
-        keccak256(
-          defaultAbiCoder.encode(
-            ['bytes32', 'address', 'address', 'uint256', 'uint256', 'uint256'],
-            [PERMIT_TYPEHASH, approve.owner, approve.spender, approve.value, nonce, deadline]
-          )
-        )
-      ]
-    )
-  )
-}
-
 export function isWETH(token) {
   if (token && token.address === WETH[token.chainId].address) {
     return true

src/utils/math.js

-import { BigNumber } from '@uniswap/sdk'
-
-// returns a deep copied + sorted list of values, as well as a sortmap
-export function sortBigNumbers(values) {
-  const valueMap = values.map((value, i) => ({ value, i }))
-
-  valueMap.sort((a, b) => {
-    if (a.value.isGreaterThan(b.value)) {
-      return 1
-    } else if (a.value.isLessThan(b.value)) {
-      return -1
-    } else {
-      return 0
-    }
-  })
-
-  return [
-    valueMap.map(element => values[element.i]),
-    values.map((_, i) => valueMap.findIndex(element => element.i === i))
-  ]
-}
-
-export function getMedian(values) {
-  const [sortedValues, sortMap] = sortBigNumbers(values)
-  if (values.length % 2 === 0) {
-    const middle = values.length / 2
-    const indices = [middle - 1, middle]
-    return [
-      sortedValues[middle - 1].plus(sortedValues[middle]).dividedBy(2),
-      sortMap.map(element => (indices.includes(element) ? new BigNumber(0.5) : new BigNumber(0)))
-    ]
-  } else {
-    const middle = Math.floor(values.length / 2)
-    return [sortedValues[middle], sortMap.map(element => (element === middle ? new BigNumber(1) : new BigNumber(0)))]
-  }
-}
-
-export function getMean(values, _weights) {
-  const weights = _weights ? _weights : values.map(() => new BigNumber(1))
-
-  const weightedValues = values.map((value, i) => value.multipliedBy(weights[i]))
-  const numerator = weightedValues.reduce(
-    (accumulator, currentValue) => accumulator.plus(currentValue),
-    new BigNumber(0)
-  )
-  const denominator = weights.reduce((accumulator, currentValue) => accumulator.plus(currentValue), new BigNumber(0))
-
-  return [numerator.dividedBy(denominator), weights.map(weight => weight.dividedBy(denominator))]
-}

src/utils/signer.js → src/utils/signer.ts

-import * as ethers from 'ethers'
+import { Signer } from 'ethers'
+import { JsonRpcSigner, Provider } from 'ethers/providers'
+import { TransactionResponse } from 'ethers/providers/abstract-provider'
 
-export default class UncheckedJsonRpcSigner extends ethers.Signer {
-  constructor(signer) {
+/**
+ * Wraps a JsonRpcSigner and replaces `sendTransaction` with `sendUncheckedTransaction`
+ */
+export default class UncheckedJsonRpcSigner extends Signer {
+  private readonly signer: JsonRpcSigner
+  public readonly provider: Provider
+
+  constructor(signer: JsonRpcSigner) {
     super()
-    ethers.utils.defineReadOnly(this, 'signer', signer)
-    ethers.utils.defineReadOnly(this, 'provider', signer.provider)
+    this.signer = signer
+    this.provider = signer.provider
   }
 
-  getAddress() {
+  getAddress(): Promise<string> {
     return this.signer.getAddress()
   }
 
-  sendTransaction(transaction) {
+  sendTransaction(transaction): Promise<TransactionResponse> {
     return this.signer.sendUncheckedTransaction(transaction).then(hash => {
       return {
-        hash: hash,
+        hash,
         nonce: null,
         gasLimit: null,
         gasPrice: null,

yarn.lock

@@ -2455,10 +2455,10 @@
   resolved "https://registry.yarnpkg.com/@uniswap/lib/-/lib-1.1.1.tgz#0afd29601846c16e5d082866cbb24a9e0758e6bc"
   integrity sha512-2yK7sLpKIT91TiS5sewHtOa7YuM8IuBXVl4GZv2jZFys4D2sY7K5vZh6MqD25TPA95Od+0YzCVq6cTF2IKrOmg==
 
-"@uniswap/sdk@^2.0.1":
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/@uniswap/sdk/-/sdk-2.0.1.tgz#191fdf0a49bc31c44ae429a1757380b83e22dd5f"
-  integrity sha512-F5SAWhGPPi4tgFTL0Gl3mtLSFkR/Tz/w35Aib5jpC1ti4AHwPWt4ReXMm7ucrvtXZlWmiBHPplNxsIIm1Z5aqQ==
+"@uniswap/sdk@^2.0.3":
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/@uniswap/sdk/-/sdk-2.0.3.tgz#a9ec8059d40d8ccd49183938bec5f194018336af"
+  integrity sha512-Re2fFehHtA8KBAD+PxUEah94Rgtm4A516jP+AcGiJ5dVUp8MzkR59RMqoEW6NX4lR8calwl9YwKOhnmLiUY9jQ==
   dependencies:
     "@ethersproject/address" "^5.0.0-beta.134"
     "@ethersproject/contracts" "^5.0.0-beta.143"