2 files changed, 10 insertions, 1 deletions
diff --git a/packages/order-watcher/src/index.ts b/packages/order-watcher/src/index.ts
index d2f91eab1..8280c73a4 100644
--- a/packages/order-watcher/src/index.ts
+++ b/packages/order-watcher/src/index.ts
@@ -7,6 +7,7 @@ export {
     OrderState,
     ExchangeContractErrs,
     OrderRelevantState,
+    Stats,
 } from '@0xproject/types';
 
 export { OnOrderStateChangeCallback, OrderWatcherConfig } from './types';
diff --git a/packages/order-watcher/src/order_watcher/order_watcher.ts b/packages/order-watcher/src/order_watcher/order_watcher.ts
index f9a63efe3..eb37bd617 100644
--- a/packages/order-watcher/src/order_watcher/order_watcher.ts
+++ b/packages/order-watcher/src/order_watcher/order_watcher.ts
@@ -30,7 +30,7 @@ import {
     orderHashUtils,
     OrderStateUtils,
 } from '@0xproject/order-utils';
-import { AssetProxyId, ExchangeContractErrs, OrderState, SignedOrder } from '@0xproject/types';
+import { AssetProxyId, ExchangeContractErrs, OrderState, SignedOrder, Stats } from '@0xproject/types';
 import { errorUtils, intervalUtils } from '@0xproject/utils';
 import { BlockParamLiteral, LogEntryEvent, LogWithDecodedArgs, Provider } from 'ethereum-types';
 import * as _ from 'lodash';
@@ -213,6 +213,14 @@ export class OrderWatcher {
         this._expirationWatcher.unsubscribe();
         intervalUtils.clearAsyncExcludingInterval(this._cleanupJobIntervalIdIfExists);
     }
+    /**
+     * Gets statistics of the OrderWatcher Instance.
+     */
+    public getStats(): Stats {
+        return {
+            orderCount: _.size(this._orderByOrderHash),
+        };
+    }
     private async _cleanupAsync(): Promise<void> {
         for (const orderHash of _.keys(this._orderByOrderHash)) {
             this._cleanupOrderRelatedState(orderHash);