Important

New database features are no longer connected to engine versions; features are now enabled independently during scheduled update windows, and “major” and “minor” releases no longer exist in Helios. Please visit the release notes to view the latest features available in your database clusters.

Replicate MongoDB® Collections using MongoDB® Wrapper Commands

Ensure that the Prerequisites are met.
Create a link: Create a link using the URI of the (remote) MongoDB® instance.
MongoDB
```
db.runCommand({createLink:"<link_name>",uri:"mongodb://<username>:<password>@<hostname>:27017"})
```
For MongoDB® Atlas instances, use the mongodb+srv:// scheme. Refer to createLink for more information.
Replicate the MongoDB® collection: Use the createCollection command and specify the link created in the previous step in the from option as follows:
MongoDB
```
db.createCollection("<collection_name>", { from:{link:"<link_name>"} })
```
This command creates a collection with the specified name in SingleStore and replicates the data from the source MongoDB® collection. Refer to createCollection for more information.

Replicate MongoDB® Collections Example

The following example shows how to replicate your MongoDB® collections:

Create a link to the MongoDB® instance:

MongoDB

db.runCommand(
  { createLink: "pLink",
    uri: "mongodb://admin:pa55w04d@svchost:27017/"
  })

Create a collection and replicate your MongoDB® data:

MongoDB

db.createCollection(
  "colTest",
  { from:
    { link:"pLink",
      database:"dbTest",
      collection:"example" }
  })

Replicate MongoDB® Collections using MongoDB® Wrapper Commands

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Replicate MongoDB® Collections Example

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