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Insert Operations

Insert Multiple Documents

You can insert multiple documents using the collection.insertMany() method. The insertMany() takes an array of documents to insert into the specified collection.

You can specify additional options in the options object passed as the second parameter of the insertMany() method. Specify ordered:true to prevent inserting the remaining documents if the insertion failed for a previous document in the array.

Specifying incorrect parameters for your insertMany() operation can cause problems. Attempting to insert a field to a value that would violate unique index rules will throw a duplicate key error.

Example

Note

You can use this example to connect to an instance of MongoDB and interact with a database that contains sample data. To learn more about connecting to your MongoDB instance and loading a sample dataset, see the Usage Examples guide.

1import { MongoClient } from "mongodb";
2
3// Replace the uri string with your MongoDB deployment's connection string.
4const uri = "<connection string uri>";
5
6const client = new MongoClient(uri);
7
8async function run() {
9  try {
10
11    // Get the database and collection on which to run the operation
12    const database = client.db("insertDB");
13    const foods = database.collection("foods");
14
15    // Create an array of documents to insert
16    const docs = [
17      { name: "cake", healthy: false },
18      { name: "lettuce", healthy: true },
19      { name: "donut", healthy: false }
20    ];
21
22    // Prevent additional documents from being inserted if one fails
23    const options = { ordered: true };
24
25    // Execute insert operation
26    const result = await foods.insertMany(docs, options);
27   
28    // Print result
29    console.log(`${result.insertedCount} documents were inserted`);
30  } finally {
31    await client.close();
32  }
33}
34run().catch(console.dir);
1import { MongoClient } from "mongodb";
2
3// Replace the uri string with your MongoDB deployment's connection string.
4const uri = "<connection string uri>";
5
6const client = new MongoClient(uri);
7
8interface Food {
9  name: string;
10  healthy: boolean;
11}
12
13async function run() {
14  try {
15    const database = client.db("insertDB");
16    // Specifying a schema is optional, but it enables type hints on
17    // finds and inserts
18    const foods = database.collection<Food>("foods");
19
20    const result = await foods.insertMany(
21      [
22        { name: "cake", healthy: false },
23        { name: "lettuce", healthy: true },
24        { name: "donut", healthy: false },
25      ],
26      { ordered: true }
27    );
28    console.log(`${result.insertedCount} documents were inserted`);
29  } finally {
30    await client.close();
31  }
32}
33run().catch(console.dir);

If you run the preceding example, you should see the following output:

3 documents were inserted

Back

Insert a Document