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Default Field Decorator

Express-Cargo provides decorators to define default values for request fields. The decorator automatically assigns a value when the incoming request does not provide one (undefined or null).

Built-in Default Decorator​

@defaultValue(value: T)​

The @defaultValue decorator assigns a default value to a class property when the request does not provide it.

  • value: The default value to assign if the field is not present in the request.
class Request {
    @body()
    @defaultValue(1)
    price!: number;
}