Remove fiat exchange rates feature

.env.example

@@ -16,12 +16,6 @@ VITE_POLYGON_ZK_EVM_NETWORK_ID=1
 # BRIDGE API
 VITE_BRIDGE_API_URL=http://localhost:8080
 
-# FIAT EXCHANGE RATES API
-VITE_ENABLE_FIAT_EXCHANGE_RATES=true
-VITE_FIAT_EXCHANGE_RATES_API_URL=https://api.exchangeratesapi.io/v1/latest
-VITE_FIAT_EXCHANGE_RATES_API_KEY=
-VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
-
 # OUTDATED NETWORK MODAL
 VITE_ENABLE_OUTDATED_NETWORK_MODAL=true
 VITE_OUTDATED_NETWORK_MODAL_TITLE=Welcome to the new Polygon zkEVM testnet!

README.md

@@ -33,17 +33,6 @@ environment variable by your own:
 cp .env.example .env
 ```
 
-If you want to see token prices converted to your local fiat currency in the UI you'll need to
-register [here](https://exchangeratesapi.io) to obtain an API Key. Once you get it, you need to set
-the `VITE_ENABLE_FIAT_EXCHANGE_RATES` env var to `true` and fill this required env vars as well:
-
-- `VITE_FIAT_EXCHANGE_RATES_API_URL`
-- `VITE_FIAT_EXCHANGE_RATES_API_KEY`
-- `VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS`
-
-If you just want to omit fiat conversion you can just disable this feature by setting the
-`VITE_ENABLE_FIAT_EXCHANGE_RATES` env var to `false`.
-
 Finally, to run the UI in development mode, you just need to run:
 
 ```sh
@@ -79,7 +68,6 @@ docker run \
 -e POLYGON_ZK_EVM_BRIDGE_CONTRACT_ADDRESS=0x9d98deabc42dd696deb9e40b4f1cab7ddbf55988 \
 -e POLYGON_ZK_EVM_NETWORK_ID=1 \
 -e BRIDGE_API_URL=http://localhost:8080 \
--e ENABLE_FIAT_EXCHANGE_RATES=false \
 -e ENABLE_OUTDATED_NETWORK_MODAL=false \
 -e ENABLE_DEPOSIT_WARNING=true \
 -e ENABLE_REPORT_FORM=false \

scripts/deploy.sh

@@ -20,24 +20,6 @@ echo "VITE_POLYGON_ZK_EVM_NETWORK_ID=$POLYGON_ZK_EVM_NETWORK_ID" >> $ENV_FILENAM
 # BRIDGE API env vars
 echo "VITE_BRIDGE_API_URL=$BRIDGE_API_URL" >> $ENV_FILENAME
 
-# FIAT EXCHANGE RATES API env vars
-echo "VITE_ENABLE_FIAT_EXCHANGE_RATES=$ENABLE_FIAT_EXCHANGE_RATES" >> $ENV_FILENAME
-
-if [ ! -z "$FIAT_EXCHANGE_RATES_API_URL" ];
-then
-  echo "VITE_FIAT_EXCHANGE_RATES_API_URL=$FIAT_EXCHANGE_RATES_API_URL" >> $ENV_FILENAME
-fi
-
-if [ ! -z "$FIAT_EXCHANGE_RATES_API_KEY" ];
-then
-  echo "VITE_FIAT_EXCHANGE_RATES_API_KEY=$FIAT_EXCHANGE_RATES_API_KEY" >> $ENV_FILENAME
-fi
-
-if [ ! -z "$FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS" ];
-then
-  echo "VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS=$FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS" >> $ENV_FILENAME
-fi
-
 # OUTDATED NETWORK MODAL
 echo "VITE_ENABLE_OUTDATED_NETWORK_MODAL=$ENABLE_OUTDATED_NETWORK_MODAL" >> $ENV_FILENAME
 

src/adapters/env.ts

@@ -1,23 +1,19 @@
 import { z } from "zod";
 
-import { getChains, getUsdcToken } from "src/constants";
+import { getChains } from "src/constants";
 import * as domain from "src/domain";
 import { StrictSchema } from "src/utils/type-safety";
 
 interface Env {
   VITE_BRIDGE_API_URL: string;
   VITE_ENABLE_DEPOSIT_WARNING: string;
-  VITE_ENABLE_FIAT_EXCHANGE_RATES: string;
   VITE_ENABLE_OUTDATED_NETWORK_MODAL?: string;
   VITE_ENABLE_REPORT_FORM: string;
   VITE_ETHEREUM_BRIDGE_CONTRACT_ADDRESS: string;
   VITE_ETHEREUM_EXPLORER_URL: string;
   VITE_ETHEREUM_FORCE_UPDATE_GLOBAL_EXIT_ROOT: string;
   VITE_ETHEREUM_PROOF_OF_EFFICIENCY_CONTRACT_ADDRESS: string;
   VITE_ETHEREUM_RPC_URL: string;
-  VITE_FIAT_EXCHANGE_RATES_API_KEY?: string;
-  VITE_FIAT_EXCHANGE_RATES_API_URL?: string;
-  VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS?: string;
   VITE_OUTDATED_NETWORK_MODAL_MESSAGE_PARAGRAPH_1?: string;
   VITE_OUTDATED_NETWORK_MODAL_MESSAGE_PARAGRAPH_2?: string;
   VITE_OUTDATED_NETWORK_MODAL_TITLE?: string;
@@ -32,16 +28,6 @@ interface Env {
   VITE_REPORT_FORM_URL_ENTRY?: string;
 }
 
-type GetFiatExchangeRatesEnvParams = Pick<
-  Env,
-  | "VITE_ENABLE_FIAT_EXCHANGE_RATES"
-  | "VITE_FIAT_EXCHANGE_RATES_API_KEY"
-  | "VITE_FIAT_EXCHANGE_RATES_API_URL"
-  | "VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS"
-> & {
-  ethereumChain: domain.Chain;
-};
-
 type GetReportFormEnvParams = Pick<
   Env,
   | "VITE_ENABLE_REPORT_FORM"
@@ -72,44 +58,6 @@ const stringBooleanParser = StrictSchema<string, boolean>()(
   })
 );
 
-const getFiatExchangeRatesEnv = ({
-  ethereumChain,
-  VITE_ENABLE_FIAT_EXCHANGE_RATES,
-  VITE_FIAT_EXCHANGE_RATES_API_KEY,
-  VITE_FIAT_EXCHANGE_RATES_API_URL,
-  VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS,
-}: GetFiatExchangeRatesEnvParams): domain.Env["fiatExchangeRates"] => {
-  const areFiatExchangeRatesEnabled = stringBooleanParser.parse(VITE_ENABLE_FIAT_EXCHANGE_RATES);
-
-  if (!areFiatExchangeRatesEnabled) {
-    return {
-      areEnabled: false,
-    };
-  }
-
-  if (!VITE_FIAT_EXCHANGE_RATES_API_URL) {
-    throw new Error("Missing VITE_FIAT_EXCHANGE_RATES_API_URL env vars");
-  }
-
-  if (!VITE_FIAT_EXCHANGE_RATES_API_KEY) {
-    throw new Error("Missing VITE_FIAT_EXCHANGE_RATES_API_KEY env var");
-  }
-
-  if (!VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS) {
-    throw new Error("Missing VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS env vars");
-  }
-
-  return {
-    apiKey: VITE_FIAT_EXCHANGE_RATES_API_KEY,
-    apiUrl: VITE_FIAT_EXCHANGE_RATES_API_URL,
-    areEnabled: true,
-    usdcToken: getUsdcToken({
-      address: VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS,
-      chainId: ethereumChain.chainId,
-    }),
-  };
-};
-
 const getReportFormEnv = ({
   VITE_ENABLE_REPORT_FORM,
   VITE_REPORT_FORM_ERROR_ENTRY,
@@ -155,17 +103,13 @@ const getReportFormEnv = ({
 const envToDomain = ({
   VITE_BRIDGE_API_URL,
   VITE_ENABLE_DEPOSIT_WARNING,
-  VITE_ENABLE_FIAT_EXCHANGE_RATES,
   VITE_ENABLE_OUTDATED_NETWORK_MODAL,
   VITE_ENABLE_REPORT_FORM,
   VITE_ETHEREUM_BRIDGE_CONTRACT_ADDRESS,
   VITE_ETHEREUM_EXPLORER_URL,
   VITE_ETHEREUM_FORCE_UPDATE_GLOBAL_EXIT_ROOT,
   VITE_ETHEREUM_PROOF_OF_EFFICIENCY_CONTRACT_ADDRESS,
   VITE_ETHEREUM_RPC_URL,
-  VITE_FIAT_EXCHANGE_RATES_API_KEY,
-  VITE_FIAT_EXCHANGE_RATES_API_URL,
-  VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS,
   VITE_OUTDATED_NETWORK_MODAL_MESSAGE_PARAGRAPH_1,
   VITE_OUTDATED_NETWORK_MODAL_MESSAGE_PARAGRAPH_2,
   VITE_OUTDATED_NETWORK_MODAL_TITLE,
@@ -223,13 +167,6 @@ const envToDomain = ({
     return {
       bridgeApiUrl,
       chains,
-      fiatExchangeRates: getFiatExchangeRatesEnv({
-        ethereumChain,
-        VITE_ENABLE_FIAT_EXCHANGE_RATES,
-        VITE_FIAT_EXCHANGE_RATES_API_KEY,
-        VITE_FIAT_EXCHANGE_RATES_API_URL,
-        VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS,
-      }),
       forceUpdateGlobalExitRootForL1,
       isDepositWarningEnabled,
       outdatedNetworkModal,
@@ -249,17 +186,13 @@ const envParser = StrictSchema<Env, domain.Env>()(
     .object({
       VITE_BRIDGE_API_URL: z.string().url(),
       VITE_ENABLE_DEPOSIT_WARNING: z.string(),
-      VITE_ENABLE_FIAT_EXCHANGE_RATES: z.string(),
       VITE_ENABLE_OUTDATED_NETWORK_MODAL: z.string().optional(),
       VITE_ENABLE_REPORT_FORM: z.string(),
       VITE_ETHEREUM_BRIDGE_CONTRACT_ADDRESS: z.string().length(42),
       VITE_ETHEREUM_EXPLORER_URL: z.string().url(),
       VITE_ETHEREUM_FORCE_UPDATE_GLOBAL_EXIT_ROOT: z.string(),
       VITE_ETHEREUM_PROOF_OF_EFFICIENCY_CONTRACT_ADDRESS: z.string().length(42),
       VITE_ETHEREUM_RPC_URL: z.string().url(),
-      VITE_FIAT_EXCHANGE_RATES_API_KEY: z.string().optional(),
-      VITE_FIAT_EXCHANGE_RATES_API_URL: z.string().url().optional(),
-      VITE_FIAT_EXCHANGE_RATES_ETHEREUM_USDC_ADDRESS: z.string().length(42).optional(),
       VITE_OUTDATED_NETWORK_MODAL_MESSAGE_PARAGRAPH_1: z.string().optional(),
       VITE_OUTDATED_NETWORK_MODAL_MESSAGE_PARAGRAPH_2: z.string().optional(),
       VITE_OUTDATED_NETWORK_MODAL_TITLE: z.string().optional(),

src/adapters/storage.ts

@@ -2,22 +2,9 @@ import { z } from "zod";
 
 import { tokenParser } from "src/adapters/tokens";
 import * as constants from "src/constants";
-import { Chain, Currency, Env, PolicyCheck, Token } from "src/domain";
+import { Chain, Env, PolicyCheck, Token } from "src/domain";
 import { PendingTx, pendingTxParser, serializePendingTx } from "src/utils/serializers";
 
-// Currency
-export function getCurrency(): Currency {
-  return getStorageByKey({
-    defaultValue: constants.PREFERRED_CURRENCY,
-    key: constants.PREFERRED_CURRENCY_KEY,
-    parser: z.nativeEnum(Currency),
-  });
-}
-
-export function setCurrency(currency: Currency): Currency {
-  return setStorageByKey({ key: constants.PREFERRED_CURRENCY_KEY, value: currency });
-}
-
 // Custom Tokens
 export function cleanupCustomTokens(envTokens: Token[]): Token[] {
   return setCustomTokens(

src/constants.ts

@@ -3,7 +3,7 @@ import { ethers } from "ethers";
 
 import { ReactComponent as EthChainIcon } from "src/assets/icons/chains/ethereum.svg";
 import { ReactComponent as PolygonZkEVMChainIcon } from "src/assets/icons/chains/polygon-zkevm.svg";
-import { Chain, Currency, EthereumChain, ProviderError, Token, ZkEVMChain } from "src/domain";
+import { Chain, EthereumChain, ProviderError, Token, ZkEVMChain } from "src/domain";
 import { ProofOfEfficiency__factory } from "src/types/contracts/proof-of-efficiency";
 import { getEthereumNetworkName } from "src/utils/labels";
 
@@ -36,10 +36,6 @@ export const POLICY_CHECK_KEY = "policyCheck";
 
 export const DISMISSED_DEPOSIT_WARNING_KEY = "dismissedDepositWarning";
 
-export const PREFERRED_CURRENCY = Currency.USD;
-
-export const FIAT_DISPLAY_PRECISION = 2;
-
 export const TOKEN_DISPLAY_PRECISION = 6;
 
 export const SNACKBAR_AUTO_HIDE_DURATION = 5 * 1000; //5s in ms
@@ -150,19 +146,3 @@ export const getEtherToken = (chain: Chain): Token => {
     symbol: "ETH",
   };
 };
-
-export const getUsdcToken = ({
-  address,
-  chainId,
-}: {
-  address: string;
-  chainId: number;
-}): Token => ({
-  address,
-  chainId,
-  decimals: 6,
-  logoURI:
-    "https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/ethereum/assets/0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48/logo.png",
-  name: "USD Coin",
-  symbol: "USDC",
-});