Merge branch 'development' of https://github.com/0xProject/0x-monorepo into sra-api/rename/sra-spec

1 files changed, 25 insertions, 0 deletions

diff --git a/packages/forwarder-helper/src/forwarder_helper_factory.ts b/packages/forwarder-helper/src/forwarder_helper_factory.ts
new file mode 100644
index 000000000..95f11f555
--- /dev/null
+++ b/packages/forwarder-helper/src/forwarder_helper_factory.ts
@@ -0,0 +1,25 @@
+import { assert } from '@0xproject/assert';
+import { schemas } from '@0xproject/json-schemas';
+import { SignedOrder } from '@0xproject/types';
+
+import { ForwarderHelperImpl, ForwarderHelperImplConfig } from './forwarder_helper_impl';
+import { ForwarderHelper } from './types';
+
+export const forwarderHelperFactory = {
+    /**
+     * Given an array of orders and an array of feeOrders
+     * @param   orders      An array of objects conforming to SignedOrder. Each order should specify the same makerAssetData and takerAssetData
+     * @param   feeOrders   An array of objects conforming to SignedOrder. Each order should specify ZRX as makerAssetData WETH as takerAssetData
+     * @return  A ForwarderHelper, see type for definition
+     */
+    getForwarderHelperForOrders(orders: SignedOrder[], feeOrders: SignedOrder[] = []): ForwarderHelper {
+        assert.doesConformToSchema('orders', orders, schemas.signedOrdersSchema);
+        assert.doesConformToSchema('feeOrders', orders, schemas.signedOrdersSchema);
+        const config: ForwarderHelperImplConfig = {
+            orders,
+            feeOrders,
+        };
+        const helper = new ForwarderHelperImpl(config);
+        return helper;
+    },
+};