graphql-scalars
Version:
A collection of scalar types not included in base GraphQL.
36 lines (35 loc) • 1.36 kB
JavaScript
import { GraphQLScalarType, Kind } from 'graphql';
import { createGraphQLError } from '../error.js';
export const IPV4_REGEX = /^(?:(?:(?:0?0?[0-9]|0?[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}(?:0?0?[0-9]|0?[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\/(?:[0-9]|[1-2][0-9]|3[0-2]))?)$/;
const validate = (value, ast) => {
if (typeof value !== 'string') {
throw createGraphQLError(`Value is not string: ${value}`, ast ? { nodes: ast } : undefined);
}
if (!IPV4_REGEX.test(value)) {
throw createGraphQLError(`Value is not a valid IPv4 address: ${value}`, ast ? { nodes: ast } : undefined);
}
return value;
};
export const GraphQLIPv4 = /*#__PURE__*/ new GraphQLScalarType({
name: `IPv4`,
description: `A field whose value is a IPv4 address: https://en.wikipedia.org/wiki/IPv4.`,
serialize(value) {
return validate(value);
},
parseValue(value) {
return validate(value);
},
parseLiteral(ast) {
if (ast.kind !== Kind.STRING) {
throw createGraphQLError(`Can only validate strings as IPv4 addresses but got a: ${ast.kind}`, { nodes: ast });
}
return validate(ast.value, ast);
},
extensions: {
codegenScalarType: 'string',
jsonSchema: {
type: 'string',
format: 'ipv4',
},
},
});