Activates hash

js/nostr-utils.js

@@ -403,4 +403,32 @@ function hexToBytes(hex) {
     }
 
     return signed_msg;
+  }
+
+  async function generateNostrEventId(msg) {
+    const digest = [
+        0,
+        msg.pubkey,
+        msg.created_at,
+        msg.kind,
+        msg.tags,
+        msg.content,
+    ];
+    const digest_str = JSON.stringify(digest);
+    const hash = await sha256Hex(digest_str);
+
+    return hash;
+  }
+
+  function sha256Hex(string) {
+    const utf8 = new TextEncoder().encode(string);
+
+    return crypto.subtle.digest('SHA-256', utf8).then((hashBuffer) => {
+        const hashArray = Array.from(new Uint8Array(hashBuffer));
+        const hashHex = hashArray
+          .map((bytes) => bytes.toString(16).padStart(2, '0'))
+          .join('');
+
+        return hashHex;
+    });
   }