1 files changed, 27 insertions, 0 deletions
diff --git a/packages/order-watcher/src/fetchers/order_filled_cancelled_fetcher.ts b/packages/order-watcher/src/fetchers/order_filled_cancelled_fetcher.ts
new file mode 100644
index 000000000..bfad1a48c
--- /dev/null
+++ b/packages/order-watcher/src/fetchers/order_filled_cancelled_fetcher.ts
@@ -0,0 +1,27 @@
+// tslint:disable:no-unnecessary-type-assertion
+import { BlockParamLiteral, ExchangeWrapper } from '@0xproject/contract-wrappers';
+import { AbstractOrderFilledCancelledFetcher } from '@0xproject/order-utils';
+import { BigNumber } from '@0xproject/utils';
+
+export class OrderFilledCancelledFetcher implements AbstractOrderFilledCancelledFetcher {
+    private readonly _exchange: ExchangeWrapper;
+    private readonly _stateLayer: BlockParamLiteral;
+    constructor(exchange: ExchangeWrapper, stateLayer: BlockParamLiteral) {
+        this._exchange = exchange;
+        this._stateLayer = stateLayer;
+    }
+    public async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber> {
+        const filledTakerAmount = this._exchange.getFilledTakerAssetAmountAsync(orderHash, {
+            defaultBlock: this._stateLayer,
+        });
+        return filledTakerAmount;
+    }
+    public async isOrderCancelledAsync(orderHash: string): Promise<boolean> {
+        const isCancelled = await this._exchange.isCancelledAsync(orderHash);
+        return isCancelled;
+    }
+    public getZRXAssetData(): string {
+        const zrxAssetData = this._exchange.getZRXAssetData();
+        return zrxAssetData;
+    }
+}