MongoDB — Multi-Document ACID Transactions

🍃 MongoDB 7.0+ 🟢 Chapter 41 of 50 📂 Phase 09: Backup, Replication & Scaling 📅 2026 Edition

Implement multi-document transactions using database sessions for atomic write safety.

1Executing a Transaction with Sessions

ACID Transaction Example

const session = await mongoose.startSession();
session.startTransaction();

try {
  await Account.updateOne({ _id: fromAcc }, { $inc: { balance: -100 } }, { session });
  await Account.updateOne({ _id: toAcc }, { $inc: { balance: 100 } }, { session });
  
  await session.commitTransaction();
  console.log("Transaction committed!");
} catch (err) {
  await session.abortTransaction();
  console.error("Transaction aborted due to error:", err);
} finally {
  session.endSession();
}

Written by Our Compiler Technical Editorial Team
Reviewed for accuracy & tested on MongoDB 7.0+ Standards · Last updated August 2026