Use more specific helper method decodeAssetDataOrThrow

2 files changed, 4 insertions, 5 deletions

diff --git a/packages/asset-buyer/src/asset_buyer.ts b/packages/asset-buyer/src/asset_buyer.ts
index 4344f070c..ad4b3bb60 100644
--- a/packages/asset-buyer/src/asset_buyer.ts
+++ b/packages/asset-buyer/src/asset_buyer.ts
@@ -193,7 +193,7 @@ export class AssetBuyer {
     ): Promise<LiquidityForAssetData> {
         const shouldForceOrderRefresh =
             options.shouldForceOrderRefresh !== undefined ? options.shouldForceOrderRefresh : false;
-        assert.isString('assetData', assetData);
+        assetDataUtils.decodeAssetDataOrThrow(assetData);
         assert.isBoolean('options.shouldForceOrderRefresh', shouldForceOrderRefresh);
 
         const assetPairs = await this.orderProvider.getAvailableMakerAssetDatasAsync(assetData);
diff --git a/packages/instant/src/index.umd.ts b/packages/instant/src/index.umd.ts
index 5ef2e1695..0acf3f2ad 100644
--- a/packages/instant/src/index.umd.ts
+++ b/packages/instant/src/index.umd.ts
@@ -156,10 +156,9 @@ export const hasLiquidityForAssetDataAsync = async (
 
     const assetBuyerOptions = { networkId };
 
-    const assetBuyer =
-        typeof orderSource === 'string'
-            ? AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(bestProvider, orderSource, assetBuyerOptions)
-            : AssetBuyer.getAssetBuyerForProvidedOrders(bestProvider, orderSource, assetBuyerOptions);
+    const assetBuyer = _.isString(orderSource)
+        ? AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(bestProvider, orderSource, assetBuyerOptions)
+        : AssetBuyer.getAssetBuyerForProvidedOrders(bestProvider, orderSource, assetBuyerOptions);
 
     const liquidity = await assetBuyer.getLiquidityForAssetDataAsync(assetData);
     return liquidity.ethValueAvailableInWei.gt(new BigNumber(0));