@nestjs/common
Version:
Nest - modern, fast, powerful node.js web framework (@common)
99 lines (98 loc) • 4.47 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.CacheInterceptor = void 0;
const tslib_1 = require("tslib");
const rxjs_1 = require("rxjs");
const operators_1 = require("rxjs/operators");
const decorators_1 = require("../../decorators");
const file_stream_1 = require("../../file-stream");
const logger_service_1 = require("../../services/logger.service");
const load_package_util_1 = require("../../utils/load-package.util");
const shared_utils_1 = require("../../utils/shared.utils");
const cache_constants_1 = require("../cache.constants");
/** @deprecated */
const HTTP_ADAPTER_HOST = 'HttpAdapterHost';
/** @deprecated */
const REFLECTOR = 'Reflector';
/**
* @see [Caching](https://docs.nestjs.com/techniques/caching)
*
* @deprecated `CacheModule` (from the `@nestjs/common` package) is deprecated and will be removed in the next major release. Please, use the `@nestjs/cache-manager` package instead
* @publicApi
*/
let CacheInterceptor = class CacheInterceptor {
constructor(cacheManager, reflector) {
this.cacheManager = cacheManager;
this.reflector = reflector;
this.allowedMethods = ['GET'];
// We need to check if the cache-manager package is v5 or greater
// because the set method signature changed in v5
const cacheManagerPackage = (0, load_package_util_1.loadPackage)('cache-manager', 'CacheModule', () => require('cache-manager'));
this.cacheManagerIsv5OrGreater = 'memoryStore' in cacheManagerPackage;
logger_service_1.Logger.warn('DEPRECATED! "CacheModule" (from the "@nestjs/common" package) is deprecated and will be removed in the next major release. Please, use the "@nestjs/cache-manager" package instead.');
}
async intercept(context, next) {
var _a;
const key = this.trackBy(context);
const ttlValueOrFactory = (_a = this.reflector.get(cache_constants_1.CACHE_TTL_METADATA, context.getHandler())) !== null && _a !== void 0 ? _a : null;
if (!key) {
return next.handle();
}
try {
const value = await this.cacheManager.get(key);
if (!(0, shared_utils_1.isNil)(value)) {
return (0, rxjs_1.of)(value);
}
const ttl = (0, shared_utils_1.isFunction)(ttlValueOrFactory)
? await ttlValueOrFactory(context)
: ttlValueOrFactory;
return next.handle().pipe((0, operators_1.tap)(async (response) => {
if (response instanceof file_stream_1.StreamableFile) {
return;
}
const args = [key, response];
if (!(0, shared_utils_1.isNil)(ttl)) {
args.push(this.cacheManagerIsv5OrGreater ? ttl : { ttl });
}
try {
await this.cacheManager.set(...args);
}
catch (err) {
logger_service_1.Logger.error(`An error has occurred when inserting "key: ${key}", "value: ${response}"`, 'CacheInterceptor');
}
}));
}
catch (_b) {
return next.handle();
}
}
trackBy(context) {
const httpAdapter = this.httpAdapterHost.httpAdapter;
const isHttpApp = httpAdapter && !!httpAdapter.getRequestMethod;
const cacheMetadata = this.reflector.get(cache_constants_1.CACHE_KEY_METADATA, context.getHandler());
if (!isHttpApp || cacheMetadata) {
return cacheMetadata;
}
const request = context.getArgByIndex(0);
if (!this.isRequestCacheable(context)) {
return undefined;
}
return httpAdapter.getRequestUrl(request);
}
isRequestCacheable(context) {
const req = context.switchToHttp().getRequest();
return this.allowedMethods.includes(req.method);
}
};
tslib_1.__decorate([
(0, decorators_1.Optional)(),
(0, decorators_1.Inject)(HTTP_ADAPTER_HOST),
tslib_1.__metadata("design:type", Object)
], CacheInterceptor.prototype, "httpAdapterHost", void 0);
CacheInterceptor = tslib_1.__decorate([
(0, decorators_1.Injectable)(),
tslib_1.__param(0, (0, decorators_1.Inject)(cache_constants_1.CACHE_MANAGER)),
tslib_1.__param(1, (0, decorators_1.Inject)(REFLECTOR)),
tslib_1.__metadata("design:paramtypes", [Object, Object])
], CacheInterceptor);
exports.CacheInterceptor = CacheInterceptor;