feat: add platform fees endpoint

src/Unit/Exchange/getSwapInfo.ts

@@ -18,7 +18,8 @@ export type GetSwapInfoParams = {
   options?: {
     instantSettlement?: boolean
     poolOnly?: boolean
-  }
+  },
+  walletAddress?: string,
 }
 
 export default async function getSwapInfo({
@@ -30,6 +31,7 @@ export default async function getSwapInfo({
   blockchainService,
   aggregator,
   options,
+  walletAddress,
 }: GetSwapInfoParams) {
   if (amount === '') throw new Error('Amount can not be empty');
   if (assetIn === '') throw new Error('AssetIn can not be empty');
@@ -45,7 +47,7 @@ export default async function getSwapInfo({
   } = await simpleFetch(blockchainService.getInfo)();
   const nativeCryptocurrencyName = getNativeCryptocurrencyName(assetToAddress);
 
-  const feeAssets = await simpleFetch(blockchainService.getTokensFee)();
+  const feeAssets = await simpleFetch(blockchainService.getPlatformFees)({ walletAddress, assetIn, assetOut });
   const allPrices = await simpleFetch(blockchainService.getPricesWithQuoteAsset)();
   const gasPriceWei = await simpleFetch(blockchainService.getGasPriceWei)();
 

src/Unit/Exchange/swapLimit.ts

@@ -89,7 +89,7 @@ export default async function swapLimit({
   const nativeCryptocurrency = getNativeCryptocurrencyName(assetToAddress);
 
   const exchangeContract = Exchange__factory.connect(exchangeContractAddress, provider);
-  const feeAssets = await simpleFetch(blockchainService.getTokensFee)();
+  const feeAssets = await simpleFetch(blockchainService.getPlatformFees)({ walletAddress, assetIn, assetOut });
   const allPrices = await simpleFetch(blockchainService.getPricesWithQuoteAsset)();
   const gasPriceWei = await simpleFetch(blockchainService.getGasPriceWei)();
   const { factories } = await simpleFetch(blockchainService.getPoolsConfig)();

src/Unit/Exchange/swapMarket.ts

@@ -74,7 +74,7 @@ export default async function swapMarket({
   const nativeCryptocurrency = getNativeCryptocurrencyName(assetToAddress);
 
   const exchangeContract = Exchange__factory.connect(exchangeContractAddress, provider);
-  const feeAssets = await simpleFetch(blockchainService.getTokensFee)();
+  const feeAssets = await simpleFetch(blockchainService.getPlatformFees)({ walletAddress, assetIn, assetOut });
   const allPrices = await simpleFetch(blockchainService.getPricesWithQuoteAsset)();
   const gasPriceWei = await simpleFetch(blockchainService.getGasPriceWei)();
   const { factories } = await simpleFetch(blockchainService.getPoolsConfig)();

src/services/BlockchainService/index.ts

@@ -86,6 +86,7 @@ class BlockchainService {
     this.getHistory = this.getHistory.bind(this);
     this.getPricesWithQuoteAsset = this.getPricesWithQuoteAsset.bind(this);
     this.getTokensFee = this.getTokensFee.bind(this);
+    this.getPlatformFees = this.getPlatformFees.bind(this);
     this.getGasPriceWei = this.getGasPriceWei.bind(this);
     this.checkFreeRedeemAvailable = this.checkFreeRedeemAvailable.bind(this);
     this.redeemAtomicSwap = this.redeemAtomicSwap.bind(this);
@@ -221,12 +222,43 @@ class BlockchainService {
     { headers: this.basicAuthHeaders }
   );
 
+  /**
+   * @deprecated In favor of getPlatformFees
+   */
   getTokensFee = () => fetchWithValidation(
     `${this.apiUrl}/api/tokensFee`,
     z.record(z.string()).transform(makePartial),
     { headers: this.basicAuthHeaders }
   );
 
+  getPlatformFees = (
+    { assetIn, assetOut, walletAddress }: {
+      assetIn?: string | undefined,
+      assetOut?: string | undefined,
+      walletAddress?: string | undefined
+    }
+  ) => {
+    const url = new URL(`${this.apiUrl}/api/platform-fees`);
+    
+    if (assetIn) {
+      url.searchParams.append('assetIn', assetIn);
+    }
+
+    if (assetOut) {
+      url.searchParams.append('assetOut', assetOut);
+    }
+
+    if (walletAddress) {
+      url.searchParams.append('walletAddress', walletAddress);
+    }
+
+    return fetchWithValidation(
+      url.toString(),
+      z.record(z.string()).transform(makePartial),
+      { headers: this.basicAuthHeaders }
+    )
+  };
+
   getGasPriceWei = () => fetchWithValidation(
     `${this.apiUrl}/api/gasPrice`,
     z.string(),