Question

I need to create several deployment scripts like data migration and fixtures for a MongoDB database and I couldn’t find enough information about how to drop indexes using Mongoose API. This is pretty straight-forward when using the official MongoDB API:

To delete all indexes on the specified collection:

db.collection.dropIndexes();

However, I would like to use Mongoose for this and I tried to use executeDbCommand adapted from this post, but with no success:

mongoose.connection.db.executeDbCommand({ dropIndexes: collectionName, index: '*' },
  function(err, result) { /* ... */ });

Should I use the official MongoDB API for Node.js or I just missed something in this approach?

Answer 1

To do this via the Mongoose model for the collection, you can call dropAllIndexes of the native collection:

MyModel.collection.dropAllIndexes(function (err, results) {
    // Handle errors
});

Update

dropAllIndexes is deprecated in the 2.x version of the native driver, so dropIndexes should be used instead:

MyModel.collection.dropIndexes(function (err, results) {
    // Handle errors
});