use node.js to copy from one mongo db to another

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use node.js to copy from one mongo db to another

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Last edited Sep 15, 2011

Created on Sep 15, 2011

This example shows how to copy a MongoDB collection from one database to another using Node.js. The script opens both source and target databases via `mongodb.Server` and `mongodb.Db`, authenticates with credentials parsed from the URLs, then uses `sourceCollection.find().toArray()` and `targetCollection.insert()` to move all documents. It relies on the native MongoDB driver and Node’s `url.parse` for connection details, logging the number of inserted documents on success or exiting with an error otherwise.

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