feat(instant): fallback to an empty wallet provider when none is injected

1 files changed, 17 insertions, 0 deletions

diff --git a/packages/instant/src/util/asset_buyer_factory.ts b/packages/instant/src/util/asset_buyer_factory.ts
new file mode 100644
index 000000000..5ba46223c
--- /dev/null
+++ b/packages/instant/src/util/asset_buyer_factory.ts
@@ -0,0 +1,17 @@
+import { AssetBuyer, AssetBuyerOpts } from '@0x/asset-buyer';
+import { Provider } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { Network, OrderSource } from '../types';
+
+export const assetBuyerFactory = {
+    getAssetBuyer: (provider: Provider, orderSource: OrderSource, network: Network): AssetBuyer => {
+        const assetBuyerOptions: Partial<AssetBuyerOpts> = {
+            networkId: network,
+        };
+        const assetBuyer = _.isString(orderSource)
+            ? AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(provider, orderSource, assetBuyerOptions)
+            : AssetBuyer.getAssetBuyerForProvidedOrders(provider, orderSource, assetBuyerOptions);
+        return assetBuyer;
+    },
+};