Scalars

With Wabe, you can create your own scalars (a TypeScript type will also be generated if you have codegen enabled). After restarting your server (to trigger the codegen), you can easily use them as a field type, as shown in the example below.

To define them, you can specify the same fields as for a GraphQL scalar (parseValue, parseLiteral, serialize, see here for more information).

import { Wabe } from "wabe";

const run = async () => {
  const wabe = new Wabe({
    // ... others config fields
    schema: {
      classes: [
        {
          name: "Company",
          fields: {
            name: {
              type: "String",
            },
            contactPhone: {
              type: "Phone",
            },
          },
        },
      ],
      scalars: [
        {
          name: "Phone",
          description: "Phone scalar",
          parseValue(value: any) {
            if (typeof value !== "string") {
              throw new Error("Invalid phone");
            }

            if (
              !value.match(
                /^(?:(?:\+33|0033)[\s.-]?)?[1-9](?:[\s.-]?\d{2}){4}$/,
              )
            ) {
              throw new Error("Invalid phone");
            }

            return value;
          },
        },
      ],
    },
  });

  await wabe.start();
};

await run();