graphql-scalars
Version:
A collection of scalar types not included in base GraphQL.
40 lines (39 loc) • 1.57 kB
JavaScript
import { GraphQLScalarType, Kind } from 'graphql';
import { createGraphQLError } from '../error.js';
// See: https://www.w3.org/TR/2021/PR-did-core-20210803/#did-syntax
const DID_REGEX = /^did:[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+:[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*:?[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*:?[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*$/;
const validate = (value, ast) => {
if (typeof value !== 'string') {
throw createGraphQLError(`Value is not string: ${value}`, ast ? { nodes: ast } : undefined);
}
if (!DID_REGEX.test(value)) {
throw createGraphQLError(`Value is not a valid DID: ${value}`, ast ? { nodes: ast } : undefined);
}
return value;
};
const specifiedByURL = 'https://www.w3.org/TR/did-core/';
export const GraphQLDIDConfig = {
name: 'DID',
description: 'A field whose value conforms to the standard DID format as specified in did-core: https://www.w3.org/TR/did-core/.',
serialize: validate,
parseValue: validate,
parseLiteral(ast) {
if (ast.kind !== Kind.STRING) {
throw createGraphQLError(`Can only validate strings as DID but got a: ${ast.kind}`, {
nodes: ast,
});
}
return validate(ast.value, ast);
},
specifiedByURL,
specifiedByUrl: specifiedByURL,
extensions: {
codegenScalarType: 'string',
jsonSchema: {
title: 'DID',
type: 'string',
pattern: DID_REGEX.source,
},
},
};
export const GraphQLDID = /*#__PURE__*/ new GraphQLScalarType(GraphQLDIDConfig);