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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'; export const IPV4_REGEX = /^(?:(?:(?:0?0?[0-9]|0?[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}(?:0?0?[0-9]|0?[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(?:\/(?:[0-9]|[1-2][0-9]|3[0-2]))?)$/; const validate = (value, ast) => { if (typeof value !== 'string') { throw createGraphQLError(`Value is not string: ${value}`, ast ? { nodes: ast } : undefined); } if (!IPV4_REGEX.test(value)) { throw createGraphQLError(`Value is not a valid IPv4 address: ${value}`, ast ? { nodes: ast } : undefined); } return value; }; export const GraphQLIPv4 = /*#__PURE__*/ new GraphQLScalarType({ name: `IPv4`, description: `A field whose value is a IPv4 address: https://en.wikipedia.org/wiki/IPv4.`, serialize(value) { return validate(value); }, parseValue(value) { return validate(value); }, parseLiteral(ast) { if (ast.kind !== Kind.STRING) { throw createGraphQLError(`Can only validate strings as IPv4 addresses but got a: ${ast.kind}`, { nodes: ast }); } return validate(ast.value, ast); }, extensions: { codegenScalarType: 'string', jsonSchema: { type: 'string', format: 'ipv4', }, }, });