dist/index.js

@@ -76,7 +76,7 @@ export class SwarmClient extends Client {
     }
     async join(topic) {
         if (typeof topic === "string") {
-            topic = blake2b(topic, { dkLen: 32 });
+            topic = blake2b(topic);
         }
         this._topics.add(topic);
         this.callModule("join", { id: this.id, topic });

src/index.ts

@@ -106,7 +106,7 @@ export class SwarmClient extends Client {
 
   public async join(topic: Buffer | Uint8Array | string): Promise<void> {
     if (typeof topic === "string") {
-      topic = blake2b(topic, { dkLen: 32 });
+      topic = blake2b(topic);
     }
 
     this._topics.add(topic);