graphql-scalars
Version:
A collection of scalar types not included in base GraphQL.
42 lines (41 loc) • 1.53 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.GraphQLRGB = void 0;
const graphql_1 = require("graphql");
const error_js_1 = require("../error.js");
const RGB_REGEX = /^rgb\(\s*(-?\d+|-?\d*\.\d+(?=%))(%?)\s*,\s*(-?\d+|-?\d*\.\d+(?=%))(\2)\s*,\s*(-?\d+|-?\d*\.\d+(?=%))(\2)\s*\)$/;
const validate = (value, ast) => {
if (typeof value !== 'string') {
throw (0, error_js_1.createGraphQLError)(`Value is not string: ${value}`, ast ? { nodes: ast } : undefined);
}
if (!RGB_REGEX.test(value)) {
throw (0, error_js_1.createGraphQLError)(`Value is not a valid RGB color: ${value}`, ast ? { nodes: ast } : undefined);
}
return value;
};
exports.GraphQLRGB = new graphql_1.GraphQLScalarType({
name: `RGB`,
description: `A field whose value is a CSS RGB color: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#rgb()_and_rgba().`,
serialize(value) {
return validate(value);
},
parseValue(value) {
return validate(value);
},
parseLiteral(ast) {
if (ast.kind !== graphql_1.Kind.STRING) {
throw (0, error_js_1.createGraphQLError)(`Can only validate strings as RGB colors but got a: ${ast.kind}`, {
nodes: ast,
});
}
return validate(ast.value, ast);
},
extensions: {
codegenScalarType: 'string',
jsonSchema: {
title: 'RGB',
type: 'string',
pattern: RGB_REGEX.source,
},
},
});