In MongoDB, operations on a single document are atomic. For operations across multiple documents or collections, MongoDB supports distributed ACID transactions within a client session.
MongoDB Multi-Document Transactions
Execute atomic multi-document operations across collections with sessions.
Key Takeaways: MongoDB Multi-Document Transactions
Mastering MongoDB Multi-Document Transactions helps you write clean and reliable MongoDB code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.
MongoDB Multi-Document Transactions Code Example
MongoDBconst session = db.getMongo().startSession();
session.startTransaction();
try {
session.getDatabase("store").orders.insertOne({ id: 1, total: 100 });
session.getDatabase("store").inventory.updateOne({ id: "item1" }, { $inc: { stock: -1 } });
session.commitTransaction();
} catch (e) {
session.abortTransaction();
}Output
Atomically completes order creation and stock deduction
Run this example on your own computer. The "Get Started" lesson shows how to set it up.
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