在nest.js中存储用户信息或任何其他请求上下文信息的位置

import { Controller, Get, Req } from '@nestjs/common';
import { Request } from 'express';

@Controller('users')
export class UsersController {
  @Get(':id')
  getUser(@Req() request: Request) {
    const userId = request.params.id;
    // 存储用户信息
    request.user = {
      id: userId,
      name: 'John Doe',
      // ...
    };
    // 处理其他业务逻辑
    // ...
  }
}

import { Injectable, NestInterceptor, ExecutionContext, CallHandler } from '@nestjs/common';
import { Observable } from 'rxjs';

@Injectable()
export class UserContextInterceptor implements NestInterceptor {
  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
    const request = context.switchToHttp().getRequest();
    const userId = request.params.id;
    // 存储用户信息
    request.user = {
      id: userId,
      name: 'John Doe',
      // ...
    };
    return next.handle();
  }
}

import { Controller, Get, UseInterceptors } from '@nestjs/common';
import { UserContextInterceptor } from './user-context.interceptor';

@Controller('users')
@UseInterceptors(UserContextInterceptor)
export class UsersController {
  @Get(':id')
  getUser() {
    // 可以直接访问存储在请求对象中的用户信息
    const userId = request.user.id;
    // 处理其他业务逻辑
    // ...
  }
}