Add order parsers to order-util

2018-09-04 11:22:31 -07:00
parent e61dbbb6cf
commit a14450f367
2 changed files with 29 additions and 1 deletions
--- a/packages/order-utils/src/parsing_utils.ts
+++ 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',
+        ]);
+    }
+}