nestjs @Req() req
时间: 2024-03-12 16:50:22 浏览: 84
您好!关于您的问题,nestjs中的@Req()装饰器是用来获取当前请求的Request对象的,它可以作为一个参数被注入到控制器方法中。通过这个装饰器,您可以获取到HTTP请求的所有信息,例如请求头、请求体、请求参数、请求路径等等。在使用@Req()装饰器时,您需要在控制器方法中定义一个参数来接收Request对象,例如:
```
import { Controller, Get, Req } from '@nestjs/common';
import { Request } from 'express';
@Controller('example')
export class ExampleController {
@Get()
exampleMethod(@Req() req: Request) {
console.log(req.headers); // 输出请求头信息
console.log(req.body); // 输出请求体信息
console.log(req.params); // 输出请求参数信息
console.log(req.url); // 输出请求路径
}
}
```
这样,您就可以通过req对象获取到当前请求的所有信息了。希望能够帮到您!
相关问题
nestjs 如何从req中获取从token中解析出的信息
在 NestJS 中,可以使用 `@AuthGuard()` 装饰器来保护路由,确保只有经过身份验证的用户才能访问。在这种情况下,用户的信息将存储在 `req.user` 中。因此,您可以在您的路由处理程序中通过 `req.user` 访问已解析的用户信息。
以下是一些示例代码:
```typescript
import { Controller, Get, Request, UseGuards } from '@nestjs/common';
import { AuthGuard } from '@nestjs/passport';
@Controller('my-route')
export class MyController {
@Get()
@UseGuards(AuthGuard('jwt'))
myRouteHandler(@Request() req) {
console.log(req.user);
// req.user 包含从 token 中解析出的用户信息
return 'My protected route';
}
}
```
在这个例子中,我们使用了 `@AuthGuard('jwt')` 装饰器来保护路由,并且在处理程序中使用了 `@Request()` 装饰器以访问请求对象。在处理程序中,我们可以通过 `req.user` 访问已解析的用户信息。
请注意,我们还需要在应用程序中配置 Passport 来使用 JwtStrategy。这个过程可能因您的应用程序而异,但是您可以查看 NestJS 的官方文档,以获取有关如何配置 Passport 和 JwtStrategy 的更多信息。
nestjs cors
NestJS provides built-in support for Cross-Origin Resource Sharing (CORS) through the @nestjs/common package. CORS is a security feature implemented by web browsers that restricts web pages from making requests to a different domain than the one that served the web page. This can be problematic when developing APIs that are consumed by different domains.
To enable CORS in NestJS, you can use the @nestjs/common package to create a middleware that sets the Access-Control-Allow-Origin header. Here's an example of how to enable CORS for all routes:
```typescript
import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
@Module({
imports: [],
controllers: [AppController],
providers: [AppService],
})
export class AppModule implements NestModule {
configure(consumer: MiddlewareConsumer) {
consumer
.apply((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*');
res.header(
'Access-Control-Allow-Headers',
'Origin, X-Requested-With, Content-Type, Accept',
);
next();
})
.forRoutes('*');
}
}
```
In this example, the middleware function sets the Access-Control-Allow-Origin header to allow requests from any origin. The Access-Control-Allow-Headers header is also set to allow requests with the specified headers.
You can also configure CORS for specific routes by passing the route path as an argument to the forRoutes() method. For example, to enable CORS for a specific route:
```typescript
consumer
.apply((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*');
res.header(
'Access-Control-Allow-Headers',
'Origin, X-Requested-With, Content-Type, Accept',
);
next();
})
.forRoutes('/api/users');
```
This middleware will only be applied to requests to the /api/users route.
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