graphql-scalars/dist/esnext/resolvers/GUID.js

A collection of scalar types not included in base GraphQL.

import { GraphQLScalarType } from 'graphql/type/definition';
import { GraphQLError } from 'graphql/error';
import { Kind } from 'graphql/language';
const GUID_REGEX = /^[0-9a-f]{8}-?[0-9a-f]{4}-?[1-5][0-9a-f]{3}-?[89ab][0-9a-f]{3}-?[0-9a-f]{12}$/i;
const validate = (value) => {
    if (typeof value !== 'string') {
        throw new TypeError(`Value is not string: ${value}`);
    }
    if (!(GUID_REGEX.test(value))) {
        throw new TypeError(`Value is not a valid GUID: ${value}`);
    }
    return value;
};
export default new GraphQLScalarType({
    name: `GUID`,
    description: `A field whose value is a generic Globally Unique Identifier: https://en.wikipedia.org/wiki/Universally_unique_identifier.`,
    serialize(value) {
        return validate(value);
    },
    parseValue(value) {
        return validate(value);
    },
    parseLiteral(ast) {
        if (ast.kind !== Kind.STRING) {
            throw new GraphQLError(`Can only validate strings as GUIDs but got a: ${ast.kind}`);
        }
        return validate(ast.value);
    }
});
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