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Time To Live Index In Mongodb

In this article, we will discuss the time to live index in MongoDB.

Purpose

The time to live index is a special type of index where the index deletes the document from the collection after a specified amount of time.

db.collection.createIndex(
  { "date_field_name": 1 }, 
  { expireAfterSeconds: [number_of_seconds] }
);

Consider the following collection: -

To create the index, we will write the following query: -

db.Sessions.createIndex(
  { "createdAt": 1 }, 
  { expireAfterSeconds: 1 }
);

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