Replicate MongoDB® Collections using MongoDB® Wrapper Commands

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Note

SingleStore recommends using MongoDB® wrapper commands to replicate your MongoDB® collections into a SingleStore Kai-enabled workspace.

To replicate your MongoDB® collections using MongoDB® wrapper commands, perform the following tasks and run the respective commands on a SingleStore Kai-enabled workspace:

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" }
  })

Last modified: August 2, 2024

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