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This post is auto-generated from RSS feed The Rust Programming Language Forum - Latest topics. Source: Outbound body streaming using warp 0.4.2 server

What's the correct way to stream a file to client using warp 0.4.2 server?

Data is provided as a Box<dyn std::io::Read + std::marker::Send> reader. I'd like to control block size if possible.

I've encountered various type errors and trait implementation errors which led to an undesirable workaround:

use std::{io::Read, marker::Send};
use warp::{Reply, Rejection, reply::Response, reject::not_found};

async fn handle_request(/* ... */) -> Result<impl Reply, Rejection>
    // --snip--

    let mut reader: Box<dyn Read + Send> = crate::zip::stream_file(&relative_path)?;
    let mut whole_file = Vec::new();
    reader
        .read_to_end(&mut whole_file)
        .map_err(|_| not_found())?;
    let mut response = Response::new(whole_file.into());
    
    // --snip--

    Ok(response)
}

The warp documentation wasn't helpful as I only found warp::filters entries which are for inbound streaming.

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