Queries

You can query you data by calling the .find() or .findOne() method of your collection. .findOne() returns the first found document while .find() returns a cursor.

Selectors

SignalDB uses the mingo library under the hood. It's very similar to MongoDB selectors. Check out their documentation to learn how a selector should look like: https://github.com/kofrasa/mingo

Options

The second parameter you can pass to the .find() method are the options. With the options you can control things like sorting, projection, skipping or limiting data.

Sorting

To sort the documention returned by a cursor, you can provide a sort object to the options. The object should contain the keys you want to sort and a direction (1 = ascending, -1 = descending)

collection.find({}, {
  sort: { createdAt: -1 },
})

Projection

You can also control which fields should be returned in the query. To do this, specify the fields object in the options of the .find() method.

collection.find({}, {
  fields: { title: 1 },
})

skip and limit

To skip or limit the result of a query, use the skip or limit options. Both options are optional.

collection.find({}, {
  skip: 10,
  limit: 10,
})