@nestjs/graphql
Version:
Nest - modern, fast, powerful node.js web framework (@graphql)
47 lines (46 loc) • 2.23 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Query = void 0;
const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
require("reflect-metadata");
const resolver_enum_1 = require("../enums/resolver.enum");
const undefined_return_type_error_1 = require("../schema-builder/errors/undefined-return-type.error");
const lazy_metadata_storage_1 = require("../schema-builder/storages/lazy-metadata.storage");
const type_metadata_storage_1 = require("../schema-builder/storages/type-metadata.storage");
const reflection_utilts_1 = require("../utils/reflection.utilts");
const resolvers_utils_1 = require("./resolvers.utils");
/**
* Query handler (method) Decorator. Routes specified query to this method.
*/
function Query(nameOrType, options = {}) {
return (target, key, descriptor) => {
const name = (0, shared_utils_1.isString)(nameOrType)
? nameOrType
: (options && options.name) || undefined;
(0, resolvers_utils_1.addResolverMetadata)(resolver_enum_1.Resolver.QUERY, name, target, key, descriptor);
lazy_metadata_storage_1.LazyMetadataStorage.store(target.constructor, () => {
if (!nameOrType || (0, shared_utils_1.isString)(nameOrType)) {
throw new undefined_return_type_error_1.UndefinedReturnTypeError(Query.name, key);
}
const { typeFn, options: typeOptions } = (0, reflection_utilts_1.reflectTypeFromMetadata)({
metadataKey: 'design:returntype',
prototype: target,
propertyKey: key,
explicitTypeFn: nameOrType,
typeOptions: options || {},
});
const metadata = {
methodName: key,
schemaName: options.name || key,
target: target.constructor,
typeFn,
returnTypeOptions: typeOptions,
description: options.description,
deprecationReason: options.deprecationReason,
complexity: options.complexity,
};
type_metadata_storage_1.TypeMetadataStorage.addQueryMetadata(metadata);
});
};
}
exports.Query = Query;