Include 'removed' field in logs (#367)

CHANGELOG.md

@@ -6,11 +6,13 @@
 
 ### Minor Changes
 
+- Fixed a bug in the `Log` object where the `removed` field was not included in the response.
+
 ## 2.10.0
 
 ### Major Changes
 
-- Add support for Base 
+- Add support for Base
 
 ### Minor Changes
 

src/api/alchemy-provider.ts

@@ -93,6 +93,8 @@ export class AlchemyProvider
       return fetchJson(batcherConnection, JSON.stringify(requests));
     };
     this.batcher = new RequestBatcher(sendBatchFn);
+
+    this.modifyFormatter();
   }
 
   /**
@@ -316,6 +318,25 @@ export class AlchemyProvider
 
     return result;
   }
+
+  /**
+   * Overrides the base `Formatter` class inherited from ethers to support
+   * returning custom fields in Ethers response types.
+   *
+   * For context, ethers has a `Formatter` class that is used to format the
+   * response from a JSON-RPC request. Any fields that are not defined in the
+   * `Formatter` class are removed from the returned response. By modifying the
+   * `Formatter` class in this method, we can add support for fields that are
+   * not defined in ethers.
+   */
+  private modifyFormatter(): void {
+    this.formatter.formats['receiptLog']['removed'] = val => {
+      if (typeof val === 'boolean') {
+        return val;
+      }
+      return undefined;
+    };
+  }
 }
 
 /**