From d6defe284496ac82c9401e71026070ebe64a682f Mon Sep 17 00:00:00 2001
From: Jonathan Staab <shtaab@gmail.com>
Date: Thu, 20 Jul 2023 10:03:37 -0700
Subject: [PATCH] Send close only if not already closed

---
 package.json    |  2 +-
 src/Executor.ts | 11 ++++++++---
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index 1d01883..7c8d86f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "paravel",
-  "version": "0.1.16",
+  "version": "0.1.17",
   "description": "Yet another toolkit for nostr",
   "repository": {
     "type": "git",
diff --git a/src/Executor.ts b/src/Executor.ts
index 78e5e85..a6f2565 100644
--- a/src/Executor.ts
+++ b/src/Executor.ts
@@ -8,6 +8,7 @@ export class Executor {
     this.target = target
   }
   subscribe(filters, {onEvent, onEose}) {
+    const closed = false
     const id = createSubId('REQ')
     const eventListener = (url, subid, e) => subid === id && onEvent?.(url, e)
     const eoseListener = (url, subid) => subid === id && onEose?.(url)
@@ -18,9 +19,13 @@ export class Executor {
 
     return {
       unsubscribe: () => {
-        this.target.send("CLOSE", id)
-        this.target.off('EVENT', eventListener)
-        this.target.off('EOSE', eoseListener)
+        if (!closed) {
+          this.target.send("CLOSE", id)
+          this.target.off('EVENT', eventListener)
+          this.target.off('EOSE', eoseListener)
+        }
+
+        closed = true
       },
     }
   }