import { registerDataHandler } from "https://deno.land/x/ldkit/mod.ts";
Registers a data type handler for translating between RDF literals and JavaScript values.
In order to register a custom data type handler, the custom data type TypeScript mapping needs to be added to the CustomDataTypes interface using module augmentation.
Two handlers are required:
- A function to translate from RDF literal value (string) to JavaScript value.
- A function to translate from JavaScript value to RDF literal value (string).
Examples
Example 1
Example 1
import { registerDataHandler } from "ldkit";
const customNumberDataType = "http://example.org/number";
declare module "ldkit" {
interface CustomDataTypes {
[customNumberDataType]: number;
}
}
registerDataHandler(
customNumberDataType,
(literalValue: string) => parseInt(literalValue),
(nativeValue: number) => nativeValue.toString(),
);
Type Parameters
T extends keyof SupportedDataTypes
Parameters
translateFromRDF: (literalValue: string) => SupportedDataTypes[T]
- Function to translate from RDF literal to JavaScript value.
translateToRDF: (nativeValue: SupportedDataTypes[T]) => string
- Function to translate from JavaScript value to RDF literal.