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graphql-scalars

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A collection of scalar types not included in base GraphQL.

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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, }, ], }, }, });