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EdgeApp · Jan 4, 2022 · 1c928e9 · 1c928e9
1 parent f89d965
commit 1c928e9
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Showing 2 changed files with 18 additions and 0 deletions.
diff --git a/src/swap-helpers.js b/src/swap-helpers.js
@@ -161,3 +161,19 @@ export function safeCurrencyCodes(
 
   return out
 }
+
+/**
+ * Turn a max quote into a "from" quote.
+ */
+export function handleMax(request: EdgeSwapRequest): EdgeSwapRequest {
+  if (request.quoteFor !== 'max') return request
+
+  const maxAmount = request.fromWallet.getMaxSpendable({
+    /* ... */
+  })
+  return {
+    ...request,
+    nativeAmount: maxAmount,
+    quoteFor: 'from'
+  }
+}
diff --git a/src/swap/sideshift.js b/src/swap/sideshift.js
@@ -27,6 +27,7 @@ import {
   type InvalidCurrencyCodes,
   checkInvalidCodes,
   ensureInFuture,
+  handleMax,
   makeSwapPluginQuote,
   safeCurrencyCodes
 } from '../swap-helpers.js'
@@ -149,6 +150,7 @@ const createFetchSwapQuote = (api: SideshiftApi, affiliateId: string) =>
     request: EdgeSwapRequest
   ): Promise<EdgeSwapQuote> {
     checkInvalidCodes(INVALID_CURRENCY_CODES, request, swapInfo)
+    request = handleMax(request)
 
     const [depositAddress, settleAddress] = await Promise.all([
       getAddress(request.fromWallet, request.fromCurrencyCode),