From a75c57b1e826a9f26fe25ec10873c0be81f7be5a Mon Sep 17 00:00:00 2001
From: Derrick Hammer <derrick@derrickhammer.com>
Date: Fri, 1 Sep 2023 08:02:05 -0400
Subject: [PATCH] feat: port listen method

---
 src/service/registry.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/service/registry.ts b/src/service/registry.ts
index c4d31e5..b5c9257 100644
--- a/src/service/registry.ts
+++ b/src/service/registry.ts
@@ -209,6 +209,15 @@ export class RegistryService {
     return null;
   }
 
+  public listen(pk: Uint8Array): EventEmitter {
+    const key = new Multihash(pk).toString();
+    if (!this.streams[key]) {
+      this.streams[key] = new EventEmitter();
+      this.sendRegistryRequest(pk);
+    }
+    return this.streams[key];
+  }
+
   public deserializeRegistryEntry(event: Uint8Array): SignedRegistryEntry {
     const dataLength = event[42];
     return {