From a14450f367d1a1f651f85ac6b0ad710fc2785e83 Mon Sep 17 00:00:00 2001
From: fragosti <francesco.agosti93@gmail.com>
Date: Tue, 4 Sep 2018 11:22:31 -0700
Subject: Add order parsers to order-util

---
 packages/order-utils/src/index.ts         |  3 ++-
 packages/order-utils/src/parsing_utils.ts | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 packages/order-utils/src/parsing_utils.ts

(limited to 'packages/order-utils')

diff --git a/packages/order-utils/src/index.ts b/packages/order-utils/src/index.ts
index 354299304..e727b3ef7 100644
--- a/packages/order-utils/src/index.ts
+++ b/packages/order-utils/src/index.ts
@@ -6,6 +6,7 @@ export { eip712Utils } from './eip712_utils';
 export { marketUtils } from './market_utils';
 export { rateUtils } from './rate_utils';
 export { sortingUtils } from './sorting_utils';
+export { orderParsingUtils } from './parsing_utils';
 
 export { OrderStateUtils } from './order_state_utils';
 export { AbstractBalanceAndProxyAllowanceFetcher } from './abstract/abstract_balance_and_proxy_allowance_fetcher';
@@ -45,4 +46,4 @@ export {
     FindOrdersThatCoverMakerAssetFillAmountOpts,
     FeeOrdersAndRemainingFeeAmount,
     OrdersAndRemainingFillAmount,
-} from './types';
+} from './types';
\ No newline at end of file
diff --git a/packages/order-utils/src/parsing_utils.ts b/packages/order-utils/src/parsing_utils.ts
new file mode 100644
index 000000000..73841c1a2
--- /dev/null
+++ b/packages/order-utils/src/parsing_utils.ts
@@ -0,0 +1,27 @@
+import { BigNumber } from '@0xproject/utils';
+import * as _ from 'lodash';
+
+export const orderParsingUtils = {
+    convertStringsFieldsToBigNumbers(obj: any, fields: string[]): any {
+        const result = _.assign({}, obj);
+        _.each(fields, field => {
+            _.update(result, field, (value: string) => {
+                if (_.isUndefined(value)) {
+                    throw new Error(`Could not find field '${field}' while converting string fields to BigNumber.`);
+                }
+                return new BigNumber(value);
+            });
+        });
+        return result;
+    },
+    convertOrderStringFieldsToBigNumber(order: any): any {
+        return orderParsingUtils.convertStringsFieldsToBigNumbers(order, [
+            'makerAssetAmount',
+            'takerAssetAmount',
+            'makerFee',
+            'takerFee',
+            'expirationTimeSeconds',
+            'salt',
+        ]);
+    }
+}
\ No newline at end of file
-- 
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