Accessing body/payload within HttpRequest

[GetSource1234]

Hi!

I have a question. I am trying to implement middleware that do some checks within HttpRequest. Currently, I see only one option is to get payload within ServiceRequest:

pub fn into_parts(self) -> (HttpRequest, Payload)

But it is not really handy, since I need to do some check within ServiceResponse. I am wondering is there any approche to get HttpRequest body/payload within ServiceResponse. Also, wondering why such methods are not implemented in HttpRequest, something like:

impl HttpRequest {

    ......
    pub fn payload(&self) -> &Payload {
       &self.0.payload
    }
    
    .....
}

P.S.

I see pretty match the same issue, But it is closed, without any handy solution.

[robjtede]

This will be easier in v4, for now into_parts is the only way to do this. HttpRequest is designed to not allow payload access.

[moy2010]

Do you have any hints for this, @robjtede ? I'm trying to access the payload from the JsonConfig's error handler, but all I get is a reference to the HttpRequest and I can't find any method to get the payload from it :/

[moy2010]

P.D., I'm using Actix-web version 4.2.1

[moy2010]

Update:

I tried using the from_request trait, but I think that using Payload::None is not what it wants 😄 :

block_on(async {
  println!("The payload was {:#?}", web::Bytes::from_request(req, &mut dev::Payload::None).await.unwrap());
});

[robjtede]

You can not get access to the payload with only a &HttpRequest. This is by design.

[moy2010]

Got it. I was afraid of that being the case when I looked into the signature for the into_payload method :(