Implement Soft Delete for Documents

MongoDB

Technical Specification

Mark a document as deleted using isDeleted flag instead of physically removing it, and update queries to ignore deleted docs.

Input/Output Samples

Input:soft delete user

Output:isDeleted:true but user still in DB

Optimal Logic Path

db.users.updateOne(
  { _id: ObjectId("...") },
  { $set: { isDeleted: true, deletedAt: new Date() } }
);

// normal queries:
db.users.find({ isDeleted: { $ne: true } });

Architectural Deep-Dive

Soft delete allows recovery and auditing; queries must be aware to ignore deleted documents.