graphql-scalars/dist/esnext/resolvers/NonNegativeInt.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';
import { processValue, VALIDATIONS } from './utilities';
export default function (name = 'NonNegativeInt') {
    return new GraphQLScalarType({
        name,
        description: 'Integers that will have a value of 0 or more.',
        serialize(value) {
            return processValue(value, VALIDATIONS.NonNegativeInt);
        },
        parseValue(value) {
            return processValue(value, VALIDATIONS.NonNegativeInt);
        },
        parseLiteral(ast) {
            if (ast.kind !== Kind.INT) {
                throw new GraphQLError(`Can only validate integers as non-negative integers but got a: ${ast.kind}`);
            }
            return processValue(ast.value, VALIDATIONS.NonNegativeInt);
        },
    });
}
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