Is there an alternative method to access the request body in Nest.js apart from using ParamDecorator?

Is there a better alternative to ParamDecorator for accessing the body or request? Perhaps using a function decorator or something on a global scale?

@Post('token')
public async createToken(@Body() body: UserLogin): Promise<any> {
  return await this.authService.signIn(body);
}

I'm having some issues with this method.

@Post('token')
@Body('body')
public async createToken(body: UserLogin): Promise<any> {
  return await this.authService.signIn(body);
}

Answer №1

To retrieve the body, simply use the request object.

async getPostById(@Req() req, @Res() res) {
   const body = req.body;
   ...
}

Some may question why you are using a decorator to access the request object in this manner!

Answer №2

Is there a reason why you believe Decorators are necessary to extract this data from the function parameters? Do you have reservations about using them or do you find them ineffective in this context? It appears that relocating the data from the function parameters to the function does not offer any significant advantages.

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