From 3705893a629bccb314e5ca1601e4a3dfb672192f Mon Sep 17 00:00:00 2001
From: rybak <fedok251@gmail.com>
Date: Tue, 28 Feb 2023 08:30:16 +0300
Subject: [PATCH] fix: Non exist getAllMethodNames from metadataScanner

---
 .../services/command-handler-finder.service.ts  | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/packages/core/src/services/command-handler-finder.service.ts b/packages/core/src/services/command-handler-finder.service.ts
index 45b9bd60..679c9645 100644
--- a/packages/core/src/services/command-handler-finder.service.ts
+++ b/packages/core/src/services/command-handler-finder.service.ts
@@ -12,9 +12,7 @@ export class CommandHandlerFinderService {
   ) {}
 
   async searchHandler(instance: InstanceType<any>): Promise<string> {
-    const methodNames = new Set(
-      this.metadataScanner.getAllMethodNames(Object.getPrototypeOf(instance)),
-    );
+    const methodNames = new Set(this.getMethodsFromInstance(instance));
 
     if (methodNames.size === 0)
       throw new Error(
@@ -42,4 +40,17 @@ export class CommandHandlerFinderService {
 
     return handlerData.methodName;
   }
+
+  private getMethodsFromInstance(instance: InstanceType<any>) {
+    if (typeof this.metadataScanner.getAllMethodNames === 'function') {
+      return this.metadataScanner.getAllMethodNames(
+        Object.getPrototypeOf(instance),
+      );
+    }
+
+    // TODO: Remove later deprecated method
+    return this.metadataScanner.getAllFilteredMethodNames(
+      Object.getPrototypeOf(instance),
+    );
+  }
 }