Add order provider response validation

1 files changed, 4 insertions, 0 deletions

diff --git a/packages/asset-buyer/src/asset_buyer.ts b/packages/asset-buyer/src/asset_buyer.ts
index 9774a8d39..03f9b5a2b 100644
--- a/packages/asset-buyer/src/asset_buyer.ts
+++ b/packages/asset-buyer/src/asset_buyer.ts
@@ -269,6 +269,10 @@ export class AssetBuyer {
         const [targetOrderProviderResponse, feeOrderProviderResponse] = await Promise.all(
             _.map(requests, async request => this.orderProvider.getOrdersAsync(request)),
         );
+        // since the order provider is an injected dependency, validate that it respects the API
+        // ie. it should only return maker/taker assetDatas that are specified
+        orderProviderResponseProcessor.throwIfInvalidResponse(targetOrderProviderResponse, targetOrderProviderRequest);
+        orderProviderResponseProcessor.throwIfInvalidResponse(feeOrderProviderResponse, feeOrderProviderRequest);
         // process the responses into one object
         const ordersAndFillableAmounts = await orderProviderResponseProcessor.processAsync(
             targetOrderProviderResponse,