Remove namespaces support (#36)

* chore: remove namespaces from code

* docs: remove namespaces from docs

.github/workflows/run-tests.workflow.yml

@@ -5,6 +5,7 @@ on:
   pull_request:
     branches:
       - main
+      - release/*
 
 concurrency:
   cancel-in-progress: true

README.md

@@ -39,9 +39,8 @@ Most of these are to some extent solvable using _request-scoped_ providers or pa
     -   [REST](#rest)
     -   [GraphQL](#graphql)
     -   [Others](#others)
--   [~~Namespaces~~](#namespaces-deprecated) (deprecated)
 
-> **Notice**: I have deprecated [Namespaces](#namespaces-deprecated) since version `2.1.1` and will be removing them in `3.0` to make room for new features ([#31](https://github.com/Papooch/nestjs-cls/issues/31)). Namespace support was experimental from the begining, and I havent seen any justifiable use case to keep it around.
+> **Notice**: I have deprecated [Namespaces](#namespaces-deprecated) since version `2.1.1` and will be removing them in `3.0` to make room for new features ([#31](https://github.com/Papooch/nestjs-cls/issues/31)). Namespace support was experimental from the beginning, and I haven't seen any justifiable use case to keep it around.
 
 # Install
 
@@ -569,62 +568,6 @@ Below are listed platforms with which it is confirmed to work.
 
 _Websocket Gateways_ don't respect globally bound enhancers, therefore it is required to bind the `ClsGuard` or `ClsIntercetor` manually on the `WebscocketGateway`. (See [#8](https://github.com/Papooch/nestjs-cls/issues/8))
 
-# ~~Namespaces~~ (deprecated)
-
-> **Warning**: Namespace support will be dropped in v3.0
-
-The default CLS namespace that the `ClsService` provides should be enough for most application, but should you need it, this package provides a way to use multiple CLS namespaces simultaneously.
-
-To use custom namespace provider, use `ClsModule.forFeature('my-namespace')`.
-
-```ts
-@Module({
-    imports: [ClsModule.forFeature('hello-namespace')],
-    providers: [HelloService],
-    controllers: [HelloController],
-})
-export class HelloModule {}
-```
-
-This creates a namespaced `ClsService` provider that you can inject using `@InjectCls`
-
-```ts
-// hello.service.ts
-
-@Injectable()
-class HelloService {
-    constructor(
-        @InjectCls('hello-namespace')
-        private readonly myCls: ClsService,
-    ) {}
-
-    sayHello() {
-        return this.myCls.run('hi');
-    }
-}
-
-// hello.controller.ts
-@Injectable()
-export class HelloController {
-    constructor(
-        @InjectCls('hello-namespace')
-        private readonly myCls: ClsService,
-        private readonly helloService: HelloService,
-    );
-
-    @Get('/hello')
-    hello2() {
-        // setting up cls context manually
-        return this.myCls.run(() => {
-            this.myCls.set('hi', 'Hello');
-            return this.helloService.sayHello();
-        });
-    }
-}
-```
-
-> **Note**: `@InjectCls('x')` is equivalent to `@Inject(getClsServiceToken('x'))`. If you don't pass an argument to `@InjectCls()`, the default ClsService will be injected and is equivalent to omitting the decorator altogether.
-
 # Contributing
 
 Contributing to a community project is always welcome, please see the [Contributing guide](./CONTRIBUTING.md) :)

src/lib/cls-service-manager.ts

@@ -1,75 +1,17 @@
-import { ClassProvider, ValueProvider } from '@nestjs/common';
-import { CLS_DEFAULT_NAMESPACE } from './cls.constants';
-import { ClsService } from './cls.service';
 import { AsyncLocalStorage } from 'async_hooks';
-
-/**
- * Get ClsService injection token (as a string)
- */
-export function getClsServiceToken(): string;
-/**
- * Get namespaced ClsService injection token (as a string)
- * @param namespace name of the namespace
- * @deprecated Namespace support will be removed in v3.0 
- */
-export function getClsServiceToken(namespace: string): string;
-export function getClsServiceToken(namespace = CLS_DEFAULT_NAMESPACE) {
-    return `ClsService-${namespace}`;
-}
+import { ClsStore } from './cls.interfaces';
+import { ClsService } from './cls.service';
 
 export class ClsServiceManager {
-    private static namespaces: Record<
-        string,
-        AsyncLocalStorage<any> & { name?: string }
-    > = {};
-
-    private static clsServices: Map<string | typeof ClsService, ClsService> =
-        new Map([
-            [
-                ClsService,
-                new ClsService(this.resolveNamespace(CLS_DEFAULT_NAMESPACE)),
-            ],
-        ]);
-
-    private static resolveNamespace(name: string) {
-        if (!this.namespaces[name]) {
-            this.namespaces[name] = new AsyncLocalStorage();
-            this.namespaces[name].name = name;
-        }
-        return this.namespaces[name];
-    }
-
-    static addClsService(name: string = CLS_DEFAULT_NAMESPACE) {
-        const service = new ClsService(this.resolveNamespace(name));
-        this.clsServices.set(
-            getClsServiceToken(name),
-            new ClsService(this.resolveNamespace(name)),
-        );
-        return service;
-    }
+    private static als = new AsyncLocalStorage();
+    private static clsService = new ClsService(this.als);
 
     /**
      * Retrieve a ClsService outside of Nest's DI.
-     * @param name namespace name, omit for default
-     * @returns the ClsService with the given namespace
+     * @returns the ClsService
      */
-    static getClsService(name?: string) {
-        const cls = this.clsServices.get(
-            name ? getClsServiceToken(name) : ClsService,
-        );
-        if (!cls)
-            throw new Error(`ClsService with namespace ${name} does not exist`);
+    static getClsService<T extends ClsStore = ClsStore>(): ClsService<T> {
+        const cls = this.clsService as ClsService<T>;
         return cls;
     }
-
-    static getClsServicesAsProviders(): Array<
-        ClassProvider<ClsService> | ValueProvider<ClsService>
-    > {
-        return Array.from(this.clsServices.entries()).map(
-            ([provide, service]) => ({
-                provide,
-                useValue: service,
-            }),
-        );
-    }
 }

src/lib/cls.constants.ts

@@ -1,7 +1,6 @@
 export const CLS_REQ = Symbol('CLS_REQUEST');
 export const CLS_RES = Symbol('CLS_RESPONSE');
 export const CLS_ID = Symbol('CLS_ID');
-export const CLS_DEFAULT_NAMESPACE = 'CLS_DEFAULT_NAMESPACE';
 export const CLS_MODULE_OPTIONS = 'ClsModuleOptions';
 export const CLS_MIDDLEWARE_OPTIONS = 'ClsMiddlewareOptions';
 export const CLS_GUARD_OPTIONS = 'ClsGuardOptions';

src/lib/cls.decorators.ts

@@ -1,18 +1,9 @@
 import { Inject } from '@nestjs/common';
-import { getClsServiceToken } from './cls-service-manager';
-import { CLS_DEFAULT_NAMESPACE } from './cls.constants';
+import { ClsService } from './cls.service';
 
 /**
  * Use to explicitly inject the ClsService
  */
-export function InjectCls(): (target: any, key: string | symbol, index?: number) => void;
-
-/**
- * Use to inject a namespaced CLS service
- * @param namespace name of the namespace
- * @deprecated Namespace support will be removed in v3.0
- */
-export function InjectCls(namespace: string): (target: any, key: string | symbol, index?: number) => void;
-export function InjectCls(namespace = CLS_DEFAULT_NAMESPACE) {
-    return Inject(getClsServiceToken(namespace));
+export function InjectCls() {
+    return Inject(ClsService);
 }

src/lib/cls.guard.ts

@@ -18,7 +18,7 @@ export class ClsGuard implements CanActivate {
     }
 
     async canActivate(context: ExecutionContext): Promise<boolean> {
-        const cls = ClsServiceManager.getClsService(this.options.namespaceName);
+        const cls = ClsServiceManager.getClsService();
         return cls.exit(async () => {
             cls.enter();
             if (this.options.generateId) {

src/lib/cls.interceptor.ts

@@ -20,7 +20,7 @@ export class ClsInterceptor implements NestInterceptor {
     }
 
     intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
-        const cls = ClsServiceManager.getClsService(this.options.namespaceName);
+        const cls = ClsServiceManager.getClsService();
         return new Observable((subscriber) => {
             cls.run(async () => {
                 if (this.options.generateId) {

src/lib/cls.interfaces.ts

@@ -1,5 +1,4 @@
 import { ExecutionContext, ModuleMetadata } from '@nestjs/common';
-import { CLS_DEFAULT_NAMESPACE } from './cls.constants';
 import { ClsService } from './cls.service';
 
 export class ClsModuleOptions {
@@ -23,20 +22,9 @@ export class ClsModuleOptions {
      * An object with additional options for the `ClsInterceptor`
      */
     interceptor?: ClsInterceptorOptions = null;
-
-    /**
-     * The namespace that will be set up. When used, `ClsService`
-     * must be injected using the `@InjectCls('name')` decorator.
-     * (most of the time you will not need to touch this setting)
-     * @deprecated Namespace support will be removed in v3.0
-     */
-    namespaceName? = CLS_DEFAULT_NAMESPACE;
 }
 
-export type ClsModuleFactoryOptions = Omit<
-    ClsModuleOptions,
-    'global' | 'namespaceName'
->;
+export type ClsModuleFactoryOptions = Omit<ClsModuleOptions, 'global'>;
 export interface ClsModuleAsyncOptions extends Pick<ModuleMetadata, 'imports'> {
     inject?: any[];
     useFactory?: (
@@ -47,13 +35,6 @@ export interface ClsModuleAsyncOptions extends Pick<ModuleMetadata, 'imports'> {
      * to import `ClsModule.forFeature()` in other modules
      */
     global?: boolean;
-    /**
-     * The namespace that will be set up. When used, `ClsService`
-     * must be injected using the `@InjectCls('name')` decorator.
-     * (most of the time you will not need to touch this setting)
-     * @deprecated Namespace support will be removed in v3.0
-     */
-    namespaceName?: string;
 }
 
 export class ClsMiddlewareOptions {
@@ -100,11 +81,6 @@ export class ClsMiddlewareOptions {
      * some frameworks are known to lose the context wih `run`.
      */
     useEnterWith? = false;
-
-    /**
-     * @deprecated Namespace support will be removed in v3.0
-     */
-    readonly namespaceName?: string;
 }
 
 export class ClsGuardOptions {
@@ -132,11 +108,6 @@ export class ClsGuardOptions {
         cls: ClsService,
         context: ExecutionContext,
     ) => void | Promise<void>;
-
-    /**
-     * @deprecated Namespace support will be removed in v3.0
-     */
-    readonly namespaceName?: string;
 }
 
 export class ClsInterceptorOptions {
@@ -164,11 +135,6 @@ export class ClsInterceptorOptions {
         cls: ClsService,
         context: ExecutionContext,
     ) => void | Promise<void>;
-
-    /**
-     * @deprecated Namespace support will be removed in v3.0
-     */
-    readonly namespaceName?: string;
 }
 
 export interface ClsStore {

src/lib/cls.middleware.ts

@@ -16,7 +16,7 @@ export class ClsMiddleware implements NestMiddleware {
         this.options = { ...new ClsMiddlewareOptions(), ...options };
     }
     use = async (req: any, res: any, next: () => any) => {
-        const cls = ClsServiceManager.getClsService(this.options.namespaceName);
+        const cls = ClsServiceManager.getClsService();
         const callback = async () => {
             this.options.useEnterWith && cls.enter();
             if (this.options.generateId) {