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How do you create several documents at once?

MongoDBJunior~1 min read

To create several documents at once in MongoDB, use the insertMany() method.

Example (Mongo Shell / JavaScript syntax):

js

db.users.insertMany([
  { name: "Alex", age: 25 },
  { name: "Maria", age: 30 },
  { name: "John", age: 20 }
])

What `insertMany` does:

takes an array of documents
inserts all the records in a single operation
returns information about the inserted _ids

When to use it:

when several documents need to be added at once (e.g. a test dataset)

So insertMany() is what's used for bulk document creation in MongoDB.

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