Supported Data Types

Data types are used to define property's type when writting Document schema. Currently, Vasern supports:

• Basic data types includes string, int, double, datetime, and reference using # followed by schema's name.
• Each type also has its characteristic optional using "?", and list using "[]"

To help you better understand about using data types in the schema, we will use Todo use case as an example. Then explains about data types used.

Todo use case

For now, we will only focus about the schema definition props in this example.

const TodoSchema = {
    name: "Todos",
    props: {
        name: "string",
        note: "?string",
        notifyOn: "?datetime",
        completed: "boolean",
        parent: "#Todos",
        assignedTo: "[]#User"
    }
}

Basic data types

In the above example, basic data types are:

• string, used by name, note
• datetime, used by notifyOn
• boolean, used by completed
• # indicate reference, used by parent and assignedTo.

Type characteristic

• ? indicates optional, which allow value to be undefined, used by note, and notifyOn.
• [] indicates list, which contains a list of basic types, used by assignedTo

Note: Do not provide optional for list, as a list length starts from 0

What's next

Learn how to write schema and create Vasern instance