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Batch Write

الكتابة الدفعية

GLS-000095

Intermediatedatabase1 min read
firestore batchwriteBatchbulk writebatch commitatomic batch
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Definition

Writing multiple documents to Firestore in a single atomic operation — either all succeed or all fail.

كتابة مستندات متعددة في Firestore في عملية ذرية واحدة — إما تنجح كلها أو تفشل كلها.

Why It Matters

Instead of waiting for 80 serial Firestore writes, a batch commits all 80 at once, completing in seconds instead of minutes.

بدلًا من انتظار 80 كتابة Firestore متسلسلة، تُرسِّخ الدفعة جميع الـ80 دفعةً واحدة، تكتمل في ثوانٍ بدلًا من دقائق.

Full Definition

A Firestore batch write groups up to 500 document operations (set, update, delete) and commits them atomically. Unlike transactions, batches don't read data — they just write. This is faster than 500 individual writes and guarantees all-or-nothing behavior. The Sprint 4 glossary seed uses batch writes to insert 80+ terms efficiently.
الكتابة الدفعية في Firestore تجمع ما يصل إلى 500 عملية مستند (set وupdate وdelete) وتُرسِّخها بشكل ذري. على عكس المعاملات، الدفعات لا تقرأ البيانات — فقط تكتب. هذا أسرع من 500 كتابة فردية ويضمن سلوك الكل أو لا شيء. بذر غلوساري Sprint 4 يستخدم الكتابة الدفعية لإدراج أكثر من 80 مصطلحًا بكفاءة.

Example Usage

“const batch = db.batch(); terms.forEach(t => batch.set(db.collection('glossary').doc(), t)); await batch.commit();”

“const batch = db.batch(); terms.forEach(t => batch.set(db.collection('glossary').doc(), t)); await batch.commit();”

Knowledge Graph

AI Builder Tips

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Avoid these mistakes when using Batch Write:

1

Exceeding 500 operations per batch (split into multiple batches)

2

Mixing reads and writes in a batch (use a transaction for reads)

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Help me build a project using Batch Write.

Explain:
1. What is Batch Write and why it matters
2. The core architecture and required tools
3. Step-by-step implementation plan
4. Common mistakes to avoid: Exceeding 500 operations per batch (split into multiple batches), Mixing reads and writes in a batch (use a transaction for reads)
5. Best practices and production tips

Official Resources

Official Documentation
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