feat: exposing parameter (#74)

sdk/src/quotes.ts

@@ -119,9 +119,10 @@ const buildRainbowQuoteUrl = ({
  * @param {EthereumAddress} params.fromAddress
  * @param {number} params.slippage
  * @param {boolean} params.refuel
+ * @param {number?} params.feePercentageBasisPoints
  * @returns {string}
  */
-const buildRainbowCrosschainQuoteUrl = ({
+export const buildRainbowCrosschainQuoteUrl = ({
   chainId,
   toChainId,
   sellTokenAddress,
@@ -130,6 +131,7 @@ const buildRainbowCrosschainQuoteUrl = ({
   fromAddress,
   slippage,
   refuel,
+  feePercentageBasisPoints,
 }: {
   chainId: number;
   toChainId?: number;
@@ -139,6 +141,7 @@ const buildRainbowCrosschainQuoteUrl = ({
   fromAddress: EthereumAddress;
   slippage: number;
   refuel?: boolean;
+  feePercentageBasisPoints?: number;
 }) => {
   const searchParams = new URLSearchParams({
     buyToken: buyTokenAddress,
@@ -150,6 +153,9 @@ const buildRainbowCrosschainQuoteUrl = ({
     slippage: String(slippage),
     swapType: SwapType.crossChain,
     toChainId: String(toChainId),
+    ...(feePercentageBasisPoints !== undefined
+      ? { feePercentageBasisPoints: String(feePercentageBasisPoints) }
+      : {}),
   });
   return `${API_BASE_URL}/v1/quote?bridgeVersion=3&` + searchParams.toString();
 };
@@ -297,6 +303,7 @@ export const getCrosschainQuote = async (
     sellAmount,
     slippage,
     refuel = false,
+    feePercentageBasisPoints,
   } = params;
 
   if (!sellAmount || !toChainId) {
@@ -306,6 +313,7 @@ export const getCrosschainQuote = async (
   const url = buildRainbowCrosschainQuoteUrl({
     buyTokenAddress,
     chainId,
+    feePercentageBasisPoints,
     fromAddress,
     refuel,
     sellAmount,

sdk/tests/utils/build_url.test.ts

@@ -0,0 +1,38 @@
+import { buildRainbowCrosschainQuoteUrl } from '../../src';
+
+describe('when creating crosschain swap URL', () => {
+  it('should consider feePercentageBasisPoints if passed', () => {
+    expect(
+      buildRainbowCrosschainQuoteUrl({
+        buyTokenAddress: '0x456',
+        chainId: 1,
+        feePercentageBasisPoints: 0,
+        fromAddress: '0x789',
+        refuel: false,
+        sellAmount: '100',
+        sellTokenAddress: '0x123',
+        slippage: 2,
+        toChainId: 137,
+      })
+    ).toEqual(
+      'https://swap.p.rainbow.me/v1/quote?bridgeVersion=3&buyToken=0x456&chainId=1&fromAddress=0x789&refuel=false&sellAmount=100&sellToken=0x123&slippage=2&swapType=cross-chain&toChainId=137&feePercentageBasisPoints=0'
+    );
+  });
+  it('should ignore feePercentageBasisPoints if not passed', () => {
+    expect(
+      buildRainbowCrosschainQuoteUrl({
+        buyTokenAddress: '0x456',
+        chainId: 1,
+        // feePercentageBasisPoints not passed
+        fromAddress: '0x789',
+        refuel: false,
+        sellAmount: '100',
+        sellTokenAddress: '0x123',
+        slippage: 2,
+        toChainId: 137,
+      })
+    ).toEqual(
+      'https://swap.p.rainbow.me/v1/quote?bridgeVersion=3&buyToken=0x456&chainId=1&fromAddress=0x789&refuel=false&sellAmount=100&sellToken=0x123&slippage=2&swapType=cross-chain&toChainId=137'
+    );
+  });
+});