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28 lines
679 B
28 lines
679 B
const gql = require('graphql')
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const { DateTime } = require('luxon')
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function parseDateTime (value) {
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const nDate = DateTime.fromISO(value)
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return nDate.isValid ? nDate : null
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}
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module.exports = new gql.GraphQLScalarType({
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name: 'Date',
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description: 'ISO date-time string at UTC',
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parseValue(value) {
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if (typeof value !== 'string') {
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throw new TypeError('Date value must be an string!')
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}
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return parseDateTime(value)
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},
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serialize(value) {
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return value.toISOString()
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},
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parseLiteral(ast) {
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if (ast.kind !== gql.Kind.STRING) {
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throw new TypeError('Date value must be an string!')
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}
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return parseDateTime(ast.value)
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}
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})
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