Publish

- @0x/contracts-integrations@2.7.21
 - @0x/asset-swapper@5.6.1

contracts/integrations/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-integrations",
-    "version": "2.7.20",
+    "version": "2.7.21",
     "private": true,
     "engines": {
         "node": ">=6.12"
@@ -93,7 +93,7 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/asset-swapper": "^5.6.0",
+        "@0x/asset-swapper": "^5.6.1",
         "@0x/base-contract": "^6.2.14",
         "@0x/contracts-asset-proxy": "^3.7.2",
         "@0x/contracts-erc1155": "^2.1.20",

packages/asset-swapper/CHANGELOG.json

@@ -1,4 +1,13 @@
 [
+    {
+        "version": "5.6.1",
+        "changes": [
+            {
+                "note": "Fix fillAmount `ExchangeProxySwapQuoteConsumer` encoding when quote is a BuyQuote"
+            }
+        ],
+        "timestamp": 1609387311
+    },
     {
         "version": "5.6.0",
         "changes": [

packages/asset-swapper/CHANGELOG.md

@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v5.6.1 - _December 31, 2020_
+
+    * Fix fillAmount `ExchangeProxySwapQuoteConsumer` encoding when quote is a BuyQuote
+
 ## v5.6.0 - _December 27, 2020_
 
     * Added Mooniswap V2 factory address (#100)

packages/asset-swapper/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/asset-swapper",
-    "version": "5.6.0",
+    "version": "5.6.1",
     "engines": {
         "node": ">=6.12"
     },

packages/asset-swapper/src/quote_consumers/exchange_proxy_swap_quote_consumer.ts

@@ -205,7 +205,7 @@ export class ExchangeProxySwapQuoteConsumer implements SwapQuoteConsumerBase {
                     buyToken,
                     refundReceiver: refundReceiver || NULL_ADDRESS,
                     side: isBuyQuote(quote) ? FillQuoteTransformerSide.Buy : FillQuoteTransformerSide.Sell,
-                    fillAmount: shouldSellEntireBalance ? MAX_UINT256 : fillAmount,
+                    fillAmount: !isBuyQuote(quote) && shouldSellEntireBalance ? MAX_UINT256 : fillAmount,
                     maxOrderFillAmounts: [],
                     rfqtTakerAddress: NULL_ADDRESS,
                     orders: quote.orders,