How manually insert data in mongodb?

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Deprecated mongosh Method
How manually insert data into MongoDB compass?
How do I push data into a MongoDB database?
How manually insert data in MongoDB Atlas?
Which method is used to insert data in MongoDB?

In this guide, you will insert data into MongoDB.

Time required: 15 minutes

A connection string to your MongoDB deployment.
Sample datasets loaded into your cluster.
An installed MongoDB Driver.

Switch to the database and collection you want to work with. In this case you will be using the sample_guides database and comets collection.

Create and insert three new documents for the comets collection. Each document consists of the following information about the comet:

The name
The official name
The orbital period in years
The radius in miles
The mass in kilograms

Tip

If you omit the _id field, the driver automatically generates a unique ObjectId value for the _id field.

Many write operations in MongoDB return a result object that contains information about the operation.

Here is the complete code followed by sample output.

Note

Your ObjectId values will differ from those shown.

If you have completed this guide, you have inserted data into MongoDB.

In the next guide, you will learn how to update a field in a document.

See the following resources for more in-depth information about the concepts presented here:

Insert Documents
Insert Methods

Docs Home → MongoDB Manual

Important

Deprecated mongosh Method

db.collection.insert()

Inserts a document or documents into a collection.

The insert() method has the following syntax:

db.collection.insert(
   ,
   {
     writeConcern: ,
     ordered: 
   }
)

Parameter

Type

Description

document

document or array

A document or array of documents to insert into the collection.

writeConcern

document

Optional. A document expressing the write concern. Omit to use the default write concern. See Write Concern.

Do not explicitly set the write concern for the operation if run in a transaction. To use write concern with transactions, see Transactions and Write Concern.

ordered

boolean

Optional. If true, perform an ordered insert of the documents in the array, and if an error occurs with one of documents, MongoDB will return without processing the remaining documents in the array.

If false, perform an unordered insert, and if an error occurs with one of documents, continue processing the remaining documents in the array.

Defaults to true.

The insert() returns an object that contains the status of the operation.

Returns:	A WriteResult object for single inserts. A BulkWriteResult object for bulk inserts.

The insert() method uses the insert command, which uses the default write concern. To specify a different write concern, include the write concern in the options parameter.

If the collection does not exist, then the insert() method will create the collection.

If the document does not specify an _id field, then MongoDB will add the _id field and assign a unique ObjectId() for the document before inserting. Most drivers create an ObjectId and insert the _id field, but the mongod will create and populate the _id if the driver or application does not.

If the document contains an _id field, the _id value must be unique within the collection to avoid duplicate key error.

db.collection.insert() can be used inside multi-document transactions.

Important

In most cases, multi-document transaction incurs a greater performance cost over single document writes, and the availability of multi-document transactions should not be a replacement for effective schema design. For many scenarios, the denormalized data model (embedded documents and arrays) will continue to be optimal for your data and use cases. That is, for many scenarios, modeling your data appropriately will minimize the need for multi-document transactions.

For additional transactions usage considerations (such as runtime limit and oplog size limit), see also Production Considerations.

Starting in MongoDB 4.4, you can create collections and indexes inside a multi-document transaction if the transaction is not a cross-shard write transaction.

Specifically, in MongoDB 4.4 and greater, if you specify an insert on a non-existing collection in a transaction, the collection is implicitly created.

In MongoDB 4.4 and earlier, the operation must be run on an existing collection.

Tip

The following example performs a bulk insert of three documents by passing an array of documents to the insert() method. By default, MongoDB performs an ordered insert. With ordered inserts, if an error occurs during an insert of one of the documents, MongoDB returns on error without processing the remaining documents in the array.

The documents in the array do not need to have the same fields. For instance, the first document in the array has an _id field and a type field. Because the second and third documents do not contain an _id field, mongod will create the _id field for the second and third documents during the insert:

db.products.insert(
   [
     { _id: 11, item: "pencil", qty: 50, type: "no.2" },
     { item: "pen", qty: 20 },
     { item: "eraser", qty: 25 }
   ]
)

The operation inserted the following three documents:

{ "_id" : 11, "item" : "pencil", "qty" : 50, "type" : "no.2" }
{ "_id" : ObjectId("51e0373c6f35bd826f47e9a0"), "item" : "pen", "qty" : 20 }
{ "_id" : ObjectId("51e0373c6f35bd826f47e9a1"), "item" : "eraser", "qty" : 25 }

The following example performs an unordered insert of three documents. With unordered inserts, if an error occurs during an insert of one of the documents, MongoDB continues to insert the remaining documents in the array.

db.products.insert(
   [
     { _id: 20, item: "lamp", qty: 50, type: "desk" },
     { _id: 21, item: "lamp", qty: 20, type: "floor" },
     { _id: 22, item: "bulk", qty: 100 }
   ],
   { ordered: false }
)

The following operation to a replica set specifies a write concern of w: 2 with a wtimeout of 5000 milliseconds. This operation either returns after the write propagates to both the primary and one secondary, or times out after 5 seconds.

db.products.insert(
    { item: "envelopes", qty : 100, type: "Clasp" },
    { writeConcern: { w: 2, wtimeout: 5000 } }
)

When passed a single document, insert() returns a WriteResult object.

The insert() returns a WriteResult() object that contains the status of the operation. Upon success, the WriteResult() object contains information on the number of documents inserted:

WriteResult({ "nInserted" : 1 })

If the insert() method encounters write concern errors, the results include the WriteResult.writeConcernError field:

WriteResult({
  "nInserted" : 1,
  "writeConcernError"({
     "code" : 64,
     "errmsg" : "waiting for replication timed out",
     "errInfo" : {
       "wtimeout" : true,
       "writeConcern" : {    // Added in MongoDB 4.4
         "w" : "majority",
         "wtimeout" : 100,
         "provenance" : "getLastErrorDefaults"
       }
     }
})

Tip

How manually insert data into MongoDB compass?

To insert documents into your collection:.

Click the Add Data dropdown and select Insert Document. click to enlarge..

Select the appropriate view based on how you would like to insert documents. Click the { } brackets for JSON view. This is the default view. Click the list icon for Field-by-Field mode. click to enlarge..

How do I push data into a MongoDB database?

The insertOne() and insertMany() are the two methods of the MongoDB module in node. js that are used to push the documents in the collections of the MongoDB database.