Each set signifies a single pair of two associated elements:

  • The name identifying the field.
  • The value that holds the data.
Ditto Document

{
  _id: "123",
  field1: "abc",
  field2: 1,
  field3: {
    sub_field1: "xyz",
    sub_field2: 2
  }
}

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Names

Similar to most document-oriented databases, you can only use strings to encode field names in documents.

For complete naming rules, see IDs, Paths, Strings, and Keywords.

If you attempt to insert a type other than a string for a field property, as demonstrated in the following snippet, you will receive an error message.

{
    1: "numeric_fields_are_invalid_here",
    "this_part": "numeric_fields_are_valid_here"
}

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Values

Field values can be encoded using various data types, including scalar type, providing flexibility in representing a wide range of information.

Following are the data types you can use to represent information in a Ditto document:

  • REGISTER
  • MAP
  • ATTACHMENT

Each data type contains two distinct components: a merge behavior and a scalar value to store. (See Data-Handling Essentials)

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Hierarchies

In the following structure, field properties are logically grouped to provide details about a specific car.

This structure includes an embedded object encapsulating both the GPS latitude and longitude coordinates, as well as the physical address where the car is located:

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