⚛️ Atomic Writes

Write multiple documents to Firestore atomically

Batch Write

login/username/+page.svelte 
<script lang="ts">
  

  // ...

  async function confirmUsername() {
    console.log("confirming username", username);
    const batch = writeBatch(db);
    batch.set(doc(db, "usernames", username), { uid: $user?.uid });
    batch.set(doc(db, "users", $user!.uid), { 
      username, 
      photoURL: $user?.photoURL ?? null,
      published: true,
      bio: 'I am the Walrus',
      links: [
        {
          title: 'Test Link',
          url: 'https://kung.foo',
          icon: 'custom'
        }
      ]
    });

    await batch.commit();

    username = '';
    isAvailable = false;

  }

</script>

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