mongodbHow to insert many docs in MongoDB?

MongoDB provides a bulk insert operation to insert multiple documents into a collection. The syntax for bulk insert is as follows:

db.collection.insertMany(
   [
      { <document 1> },
      { <document 2> },
      ...
      { <document n> }
   ]
)

The output of the above command will be:

{
   "acknowledged" : true,
   "insertedIds" : [
      ObjectId("5f3d7f9f8f9f8f9f8f9f8f9f"),
      ObjectId("5f3d7f9f8f9f8f9f8f9f8f9f"),
      ObjectId("5f3d7f9f8f9f8f9f8f9f8f9f")
   ]
}

Code explanation

• db.collection.insertMany: This is the method used to perform a bulk insert operation.
• [ { <document 1> }, { <document 2> }, ... { <document n> } ]: This is an array of documents to be inserted.
• acknowledged: This is a boolean value indicating whether the operation was successful or not.
• insertedIds: This is an array of ObjectIds of the documents that were inserted.

Helpful links

• MongoDB Documentation - Bulk Write Operations

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