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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.NestFactory = exports.NestFactoryStatic = void 0;
const logger_service_1 = require("@nestjs/common/services/logger.service");
const load_package_util_1 = require("@nestjs/common/utils/load-package.util");
const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
const application_config_1 = require("./application-config");
const constants_1 = require("./constants");
const exceptions_zone_1 = require("./errors/exceptions-zone");
const load_adapter_1 = require("./helpers/load-adapter");
const rethrow_1 = require("./helpers/rethrow");
const container_1 = require("./injector/container");
const injector_1 = require("./injector/injector");
const instance_loader_1 = require("./injector/instance-loader");
const graph_inspector_1 = require("./inspector/graph-inspector");
const noop_graph_inspector_1 = require("./inspector/noop-graph-inspector");
const uuid_factory_1 = require("./inspector/uuid-factory");
const metadata_scanner_1 = require("./metadata-scanner");
const nest_application_1 = require("./nest-application");
const nest_application_context_1 = require("./nest-application-context");
const scanner_1 = require("./scanner");
/**
* @publicApi
*/
class NestFactoryStatic {
constructor() {
this.logger = new logger_service_1.Logger('NestFactory', {
timestamp: true,
});
this.abortOnError = true;
this.autoFlushLogs = false;
}
async create(moduleCls, serverOrOptions, options) {
const [httpServer, appOptions] = this.isHttpServer(serverOrOptions)
? [serverOrOptions, options]
: [this.createHttpAdapter(), serverOrOptions];
const applicationConfig = new application_config_1.ApplicationConfig();
const container = new container_1.NestContainer(applicationConfig);
const graphInspector = this.createGraphInspector(appOptions, container);
this.setAbortOnError(serverOrOptions, options);
this.registerLoggerConfiguration(appOptions);
await this.initialize(moduleCls, container, graphInspector, applicationConfig, appOptions, httpServer);
const instance = new nest_application_1.NestApplication(container, httpServer, applicationConfig, graphInspector, appOptions);
const target = this.createNestInstance(instance);
return this.createAdapterProxy(target, httpServer);
}
/**
* Creates an instance of NestMicroservice.
*
* @param moduleCls Entry (root) application module class
* @param options Optional microservice configuration
*
* @returns A promise that, when resolved,
* contains a reference to the NestMicroservice instance.
*/
async createMicroservice(moduleCls, options) {
const { NestMicroservice } = (0, load_package_util_1.loadPackage)('@nestjs/microservices', 'NestFactory', () => require('@nestjs/microservices'));
const applicationConfig = new application_config_1.ApplicationConfig();
const container = new container_1.NestContainer(applicationConfig);
const graphInspector = this.createGraphInspector(options, container);
this.setAbortOnError(options);
this.registerLoggerConfiguration(options);
await this.initialize(moduleCls, container, graphInspector, applicationConfig, options);
return this.createNestInstance(new NestMicroservice(container, options, graphInspector, applicationConfig));
}
/**
* Creates an instance of NestApplicationContext.
*
* @param moduleCls Entry (root) application module class
* @param options Optional Nest application configuration
*
* @returns A promise that, when resolved,
* contains a reference to the NestApplicationContext instance.
*/
async createApplicationContext(moduleCls, options) {
const applicationConfig = new application_config_1.ApplicationConfig();
const container = new container_1.NestContainer(applicationConfig);
const graphInspector = this.createGraphInspector(options, container);
this.setAbortOnError(options);
this.registerLoggerConfiguration(options);
await this.initialize(moduleCls, container, graphInspector, applicationConfig, options);
const modules = container.getModules().values();
const root = modules.next().value;
const context = this.createNestInstance(new nest_application_context_1.NestApplicationContext(container, options, root));
if (this.autoFlushLogs) {
context.flushLogsOnOverride();
}
return context.init();
}
createNestInstance(instance) {
return this.createProxy(instance);
}
async initialize(module, container, graphInspector, config = new application_config_1.ApplicationConfig(), options = {}, httpServer = null) {
uuid_factory_1.UuidFactory.mode = options.snapshot
? uuid_factory_1.UuidFactoryMode.Deterministic
: uuid_factory_1.UuidFactoryMode.Random;
const injector = new injector_1.Injector({ preview: options.preview });
const instanceLoader = new instance_loader_1.InstanceLoader(container, injector, graphInspector);
const metadataScanner = new metadata_scanner_1.MetadataScanner();
const dependenciesScanner = new scanner_1.DependenciesScanner(container, metadataScanner, graphInspector, config);
container.setHttpAdapter(httpServer);
const teardown = this.abortOnError === false ? rethrow_1.rethrow : undefined;
await httpServer?.init();
try {
this.logger.log(constants_1.MESSAGES.APPLICATION_START);
await exceptions_zone_1.ExceptionsZone.asyncRun(async () => {
await dependenciesScanner.scan(module);
await instanceLoader.createInstancesOfDependencies();
dependenciesScanner.applyApplicationProviders();
}, teardown, this.autoFlushLogs);
}
catch (e) {
this.handleInitializationError(e);
}
}
handleInitializationError(err) {
if (this.abortOnError) {
process.abort();
}
(0, rethrow_1.rethrow)(err);
}
createProxy(target) {
const proxy = this.createExceptionProxy();
return new Proxy(target, {
get: proxy,
set: proxy,
});
}
createExceptionProxy() {
return (receiver, prop) => {
if (!(prop in receiver)) {
return;
}
if ((0, shared_utils_1.isFunction)(receiver[prop])) {
return this.createExceptionZone(receiver, prop);
}
return receiver[prop];
};
}
createExceptionZone(receiver, prop) {
const teardown = this.abortOnError === false ? rethrow_1.rethrow : undefined;
return (...args) => {
let result;
exceptions_zone_1.ExceptionsZone.run(() => {
result = receiver[prop](...args);
}, teardown);
return result;
};
}
registerLoggerConfiguration(options) {
if (!options) {
return;
}
const { logger, bufferLogs, autoFlushLogs } = options;
if (logger !== true && !(0, shared_utils_1.isNil)(logger)) {
logger_service_1.Logger.overrideLogger(logger);
}
if (bufferLogs) {
logger_service_1.Logger.attachBuffer();
}
this.autoFlushLogs = autoFlushLogs ?? true;
}
createHttpAdapter(httpServer) {
const { ExpressAdapter } = (0, load_adapter_1.loadAdapter)('@nestjs/platform-express', 'HTTP', () => require('@nestjs/platform-express'));
return new ExpressAdapter(httpServer);
}
isHttpServer(serverOrOptions) {
return !!(serverOrOptions && serverOrOptions.patch);
}
setAbortOnError(serverOrOptions, options) {
this.abortOnError = this.isHttpServer(serverOrOptions)
? !(options && options.abortOnError === false)
: !(serverOrOptions && serverOrOptions.abortOnError === false);
}
createAdapterProxy(app, adapter) {
const proxy = new Proxy(app, {
get: (receiver, prop) => {
const mapToProxy = (result) => {
return result instanceof Promise
? result.then(mapToProxy)
: result instanceof nest_application_1.NestApplication
? proxy
: result;
};
if (!(prop in receiver) && prop in adapter) {
return (...args) => {
const result = this.createExceptionZone(adapter, prop)(...args);
return mapToProxy(result);
};
}
if ((0, shared_utils_1.isFunction)(receiver[prop])) {
return (...args) => {
const result = receiver[prop](...args);
return mapToProxy(result);
};
}
return receiver[prop];
},
});
return proxy;
}
createGraphInspector(appOptions, container) {
return appOptions?.snapshot
? new graph_inspector_1.GraphInspector(container)
: noop_graph_inspector_1.NoopGraphInspector;
}
}
exports.NestFactoryStatic = NestFactoryStatic;
/**
* Use NestFactory to create an application instance.
*
* ### Specifying an entry module
*
* Pass the required *root module* for the application via the module parameter.
* By convention, it is usually called `ApplicationModule`. Starting with this
* module, Nest assembles the dependency graph and begins the process of
* Dependency Injection and instantiates the classes needed to launch your
* application.
*
* @publicApi
*/
exports.NestFactory = new NestFactoryStatic();