graphql-scalars
Version:
A collection of scalar types not included in base GraphQL.
51 lines (50 loc) • 2.03 kB
JavaScript
import { GraphQLScalarType, Kind } from 'graphql';
import { createGraphQLError } from '../error.js';
import { LOCAL_TIME_FORMAT, validateLocalTime } from './LocalTime.js';
const LOCAL_END_TIMES = ['24:00', '24:00:00', '24:00:00.000'];
function validateLocalEndTime(value) {
// first check if it's any of the special "end time" values
if (LOCAL_END_TIMES.indexOf(value) >= 0) {
return value;
}
// otherwise, fall back on the standard LocalTime validation
return validateLocalTime(value);
}
export const GraphQLLocalEndTime = /*#__PURE__*/ new GraphQLScalarType({
name: 'LocalEndTime',
description: 'A local time string (i.e., with no associated timezone) in 24-hr `HH:mm[:ss[.SSS]]` format, e.g. `14:25` or `14:25:06` or `14:25:06.123`. This scalar is very similar to the `LocalTime`, with the only difference being that `LocalEndTime` also allows `24:00` as a valid value to indicate midnight of the following day. This is useful when using the scalar to represent the exclusive upper bound of a time block.',
serialize(value) {
// value sent to client as string
return validateLocalEndTime(value);
},
parseValue(value) {
// value from client as json
return validateLocalEndTime(value);
},
parseLiteral(ast) {
// value from client in ast
if (ast.kind !== Kind.STRING) {
throw createGraphQLError(`Can only validate strings as local times but got a: ${ast.kind}`, {
nodes: ast,
});
}
return validateLocalEndTime(ast.value);
},
extensions: {
codegenScalarType: 'string',
jsonSchema: {
title: 'LocalEndTime',
type: 'string',
oneOf: [
{
type: 'string',
pattern: LOCAL_TIME_FORMAT.source,
},
{
type: 'string',
enum: LOCAL_END_TIMES,
},
],
},
},
});