refactored code

src/langchain/helius/delete_webhook.ts

@@ -0,0 +1,39 @@
+import { Tool } from "langchain/tools";
+import { SolanaAgentKit } from "../../agent";
+
+export class SolanaDeleteHeliusWebhookTool extends Tool {
+  name = "delete_helius_webhook";
+  description = `Deletes a Helius Webhook by its ID.
+  Inputs (input is a JSON string):
+    webhookID: string, e.g. "1ed4244d-a591-4854-ac31-cc28d40b8255"`;
+
+  constructor(private solanaKit: SolanaAgentKit) {
+    super();
+  }
+
+  protected async _call(input: string): Promise<string> {
+    try {
+      const parsedInput = JSON.parse(input);
+
+      const webhookID = parsedInput.webhookID;
+      if (!webhookID || typeof webhookID !== "string") {
+        throw new Error(
+          'Invalid input. Expected a "webhookID" property in the JSON.',
+        );
+      }
+      const result = await this.solanaKit.deleteWebhook(webhookID);
+
+      return JSON.stringify({
+        status: "success",
+        message: "Helius Webhook deleted successfully",
+        data: result,
+      });
+    } catch (error: any) {
+      return JSON.stringify({
+        status: "error",
+        message: error.message,
+        code: error.code || "UNKNOWN_ERROR",
+      });
+    }
+  }
+}