langpavel · July 28, 2023 08:46 · anaborgessensedia · Sep 19, 2017 · billel-boudchicha · Oct 16, 2017
diff --git a/GraphQLTimestamp.js b/GraphQLTimestamp.js
 import { Kind } from 'graphql/language';
 import { GraphQLScalarType } from 'graphql';

 function serializeDate(value) {
  if (value instanceof Date) {
    return value.getTime();
  } else if (typeof value === 'number') {
    return Math.trunc(value);
  } else if (typeof value === 'string') {
    return Date.parse(value);
  }
  return null;
 }

 function parseDate(value) {
  if (value === null) {
    return null;
  }

  try {
    return new Date(value);
  } catch (err) {
    return null;
  }
 }

 function parseDateFromLiteral(ast) {
  if (ast.kind === Kind.INT) {
    const num = parseInt(ast.value, 10);
    return new Date(num);
  } else if (ast.kind === Kind.STRING) {
    return parseDate(ast.value);
  }
  return null;
 }

 const TimestampType = new GraphQLScalarType({
  name: 'Timestamp',
  description:
    'The javascript `Date` as integer. Type represents date and time ' +
    'as number of milliseconds from start of UNIX epoch.',
  serialize: serializeDate,
  parseValue: parseDate,
  parseLiteral: parseDateFromLiteral,
 });

 export default TimestampType;
	import { Kind } from 'graphql/language';
	import { GraphQLScalarType } from 'graphql';

	function serializeDate(value) {
	if (value instanceof Date) {
	return value.getTime();
	} else if (typeof value === 'number') {
	return Math.trunc(value);
	} else if (typeof value === 'string') {
	return Date.parse(value);
	}
	return null;
	}

	function parseDate(value) {
	if (value === null) {
	return null;
	}

	try {
	return new Date(value);
	} catch (err) {
	return null;
	}
	}

	function parseDateFromLiteral(ast) {
	if (ast.kind === Kind.INT) {
	const num = parseInt(ast.value, 10);
	return new Date(num);
	} else if (ast.kind === Kind.STRING) {
	return parseDate(ast.value);
	}
	return null;
	}

	const TimestampType = new GraphQLScalarType({
	name: 'Timestamp',
	description:
	'The javascript `Date` as integer. Type represents date and time ' +
	'as number of milliseconds from start of UNIX epoch.',
	serialize: serializeDate,
	parseValue: parseDate,
	parseLiteral: parseDateFromLiteral,
	});

	export default TimestampType;