@nestjs/graphql
Version:
Nest - modern, fast, powerful node.js web framework (@graphql)
61 lines (60 loc) • 2.91 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ResolveField = void 0;
const common_1 = require("@nestjs/common");
const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
const graphql_constants_1 = require("../graphql.constants");
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");
/**
* Property resolver (method) Decorator.
*/
function ResolveField(propertyNameOrFunc, typeFuncOrOptions, resolveFieldOptions) {
return (target, key, descriptor) => {
// eslint-disable-next-line prefer-const
let [propertyName, typeFunc, options] = (0, shared_utils_1.isFunction)(propertyNameOrFunc)
? typeFuncOrOptions && typeFuncOrOptions.name
? [typeFuncOrOptions.name, propertyNameOrFunc, typeFuncOrOptions]
: [undefined, propertyNameOrFunc, typeFuncOrOptions]
: [propertyNameOrFunc, typeFuncOrOptions, resolveFieldOptions];
(0, common_1.SetMetadata)(graphql_constants_1.RESOLVER_NAME_METADATA, propertyName)(target, key, descriptor);
(0, common_1.SetMetadata)(graphql_constants_1.RESOLVER_PROPERTY_METADATA, true)(target, key, descriptor);
(0, common_1.SetMetadata)(graphql_constants_1.FIELD_RESOLVER_MIDDLEWARE_METADATA, options?.middleware)(target, key, descriptor);
options = (0, shared_utils_1.isObject)(options)
? {
name: propertyName,
...options,
}
: propertyName
? { name: propertyName }
: {};
lazy_metadata_storage_1.LazyMetadataStorage.store(target.constructor, () => {
let typeOptions, typeFn;
try {
const implicitTypeMetadata = (0, reflection_utilts_1.reflectTypeFromMetadata)({
metadataKey: 'design:returntype',
prototype: target,
propertyKey: key,
explicitTypeFn: typeFunc,
typeOptions: options,
});
typeOptions = implicitTypeMetadata.options;
typeFn = implicitTypeMetadata.typeFn;
}
catch { }
type_metadata_storage_1.TypeMetadataStorage.addResolverPropertyMetadata({
kind: 'external',
methodName: key,
schemaName: options.name || key,
target: target.constructor,
typeFn,
typeOptions,
description: options.description,
deprecationReason: options.deprecationReason,
complexity: options.complexity,
});
});
};
}
exports.ResolveField = ResolveField;