Overview

GraphQL Custom Scalars are an important feature of GraphQL, allowing users to define scalars that are not part of the built-in scalars.

GraphQL Specification

The latest draft of the Custom Scalars specification is provided by the GraphQL Foundation.

Scalar Param Specification

We introduce a new directive named @scalarParam exclusively for custom scalars. This directive can be used to configure a custom scalar. We provide a draft for this scalarParam specification.

Custom Scalar Specifications

• Long
• DateTime
• Date
• JSON

Implementations

This specification is implemented in IBM API Connect, starting with v10.0.4.0.