Merge pull request #87 from curvefi/chore/price-impact-optional-zap-v2

chore: make priceImpact optional for zapV2

Author: fedorovdg

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@curvefi/llamalend-api",
-  "version": "2.0.13",
+  "version": "2.0.14",
   "description": "JavaScript library for Curve Lending",
   "main": "lib/index.js",
   "author": "Macket",

src/interfaces.ts

@@ -235,11 +235,11 @@ export interface IResponseApi {
 
 export interface IQuote {
     outAmount: string,
-    priceImpact: number
+    priceImpact: number | null
 }
 
 export interface ILeverageMetrics {
-    priceImpact: number,
+    priceImpact: number | null,
     bands: [number, number],
     prices: string[],
     health: string,

src/lendMarkets/modules/common/leverageZapV2Base.ts

@@ -880,7 +880,7 @@ export class LeverageZapV2BaseModule {
 
         const _stateCollateral = parseUnits(stateCollateral, this.market.collateral_token.decimals);
         const _userCollateral = parseUnits(userCollateral, this.market.collateral_token.decimals);
-        const priceImpact = _stateCollateral + _userCollateral > BigInt(0) ? quote.priceImpact : 0;
+        const priceImpact = _stateCollateral + _userCollateral > BigInt(0) ? quote.priceImpact : null;
 
         return {
             priceImpact,