graphql-scalars
Version:
A collection of scalar types not included in base GraphQL.
43 lines (42 loc) • 2.66 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.GraphQLLCCSubclass = exports.GraphQLLCCSubclassConfig = void 0;
const graphql_1 = require("graphql");
const error_js_1 = require("../../error.js");
//Regex for the various letter subclasses of the Library of Congress Classification
//As defined in the pdfs available by clicking on the letters at this link
//https://www.loc.gov/catdir/cpso/lcco/
const LCC_SUBCLASS_PREFIX = /^((AC|AE|AG|AI|AM|AN|AP|AS|AY|AZ)|[B][CDFHJLMPQRSTVX]{0,1}|[C][BCDEJNRST]{0,1}|[D][AWBCDEFGH]{0,1}|[E]|[F]|[G][ABCEFNRTV]{0,1}|[H][ABCDEFGJMNQSTVX]{0,1}|[J][ACFJKLNQSVXZ]{0,1}|(K|KB[M,P,R,U]|KD[C,E,G,K,Z]{0,1}|KE[ABMNOPQSYZ]{0,1}|KF[ACDFGHIKLMNOPRSTUVWXZ]{0,1}|KG[ABCDEFGHJKLMNPQRSTUVWXYZ]{0,1}|KH[ACDFHKLMNPQSUW]{0,1}|KJ[ACEGHJKMNPRSTVW]{0,1}|KK[ABEFGHIJKLMNPQRSTVWXYZ]{0,1}|KL[ABDEFHMNPQRSTVW]{0,1}|KM[CEFGHJKLMNPQSTUVXY]{0,1}|KN[CEFGHKLMNPQRSTUVWXY]{0,1}|KP[ACEFGHJKLMPSTVW]{0,1}|KQ[CEGHJKMPTVWX]{0,1}|KR[BCEGKLMNPRSUVWXY]{0,1}|KS[ACEGHKLNPRSTUVWXYZ]{0,1}|KT[ACDEFGHJKLNQRTUVWXYZ]{0,1}|KU[ABCDEFGHNQ]{0,1}|KV[BCEHLMNPQRSUW]{0,1}|KW[ACEGHLPQRTWX]{0,1}|KZ[AD]{0,1})|[L][ABCDEFGHJT]{0,1}|[M][LT]{0,1}|[N][ABCDEKX]{0,1}|[P][ABCDEFGHJKLMNQRSTZ]{0,1}|[Q][ABCDEHKLMPR]{0,1}|[R][ABCDEFGJKLMSTVXZ]{0,1}|[S][BDFHK]{0,1}|[T][ACDEFGHJKLNPRSTX]{0,1}|[U][ABCDEFGH]{0,1}|[V][ABCDEFGKM]{0,1}|[Z][A]{0,1})$/;
const validate = (value, ast) => {
if (typeof value !== 'string') {
throw (0, error_js_1.createGraphQLError)(`Value is not string: ${value}`, { nodes: ast });
}
if (!LCC_SUBCLASS_PREFIX.test(value)) {
throw (0, error_js_1.createGraphQLError)(`Value is not a valid LCC Subclass: ${value}`, { nodes: ast });
}
return value;
};
const specifiedByURL = 'https://www.loc.gov/catdir/cpso/lcco/';
exports.GraphQLLCCSubclassConfig = {
name: 'LCCSubclass',
description: `A field whose value conforms to the Library of Congress Subclass Format ttps://www.loc.gov/catdir/cpso/lcco/`,
serialize: validate,
parseValue: validate,
parseLiteral(ast) {
if (ast.kind !== graphql_1.Kind.STRING) {
throw (0, error_js_1.createGraphQLError)(`Can only validate strings as LCC Subclasses but got a: ${ast.kind}`, { nodes: ast });
}
return validate(ast.value, ast);
},
specifiedByURL,
specifiedByUrl: specifiedByURL,
extensions: {
codegenScalarType: 'string',
jsonSchema: {
title: 'DeweyDecimal',
type: 'string',
pattern: LCC_SUBCLASS_PREFIX.source,
},
},
};
exports.GraphQLLCCSubclass = new graphql_1.GraphQLScalarType(exports.GraphQLLCCSubclassConfig);