@backland/schema/lib/module/GraphType/GraphQLDateType.js

TypeScript schema declaration and validation library with static type inference

import { GraphQLError, GraphQLScalarType, Kind } from 'graphql';
import { DateField } from '../fields/DateField';
export var GraphQLDateType = new GraphQLScalarType({
  name: 'Date',
  parseLiteral(ast) {
    if (ast.kind === Kind.INT) {
      return new Date(parseInt(ast.value, 10));
    }
    if (ast.kind !== Kind.STRING) {
      throw new GraphQLError("Query error: Can only parse string or integer to Date but got a: ".concat(ast.kind), [ast]);
    }
    var result = new Date(ast.value);
    if (Number.isNaN(result.getTime())) {
      throw new GraphQLError('Query error: Invalid date', [ast]);
    }
    return result;
  },
  parseValue(value) {
    var date = new Date(value);
    if (Number.isNaN(date.getTime())) {
      throw new TypeError('Field error: value is an invalid Date');
    }
    return date;
  },
  serialize(value) {
    return DateField.serialize(value).toJSON();
  }
});
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