Sending data
The previous microservice handler was very contrived. It is more likely that microservice handlers will be implemented to perform some processing on data and return some value. In a normal HTTP handler, we would use @Req or @Body to extract the data from the HTTP request’s body. Since microservice handlers have no HTTP context, they take input data as a method parameter.
@Controller()exportclassUserController{@Client({transport:Transport.TCP,options:{port:5667}})client:ClientProxy@Post('users')publicasynccreate(@Req()req,@Res()res){this.client.send({cmd:'users.index'},{}).subscribe({next:users=>{res.status(HttpStatus.OK).json(users);},error:error=>{res.status(HttpStatus.INTERNAL_SERVER_ERROR).json(error);}});}@MessagePattern({cmd:'users.create'})publicasyncrpcCreate...