Returns the raw data stream.

The stream contains all of the data in the body of the request, including that in the peek buffer. The method consumes the Data instance. This ensures that a Data type always represents all of the data in a request.

Example

use rocket::Data;

fn handler(data: Data) {
    let stream = data.open();
}

Retrieve the peek buffer.

The peek buffer contains at most 512 bytes of the body of the request. The actual size of the returned buffer varies by web request. The peek_complete can be used to determine if this buffer contains all of the data in the body of the request.

Example

use rocket::Data;

fn handler(data: Data) {
    let peek = data.peek();
}

Returns true if the peek buffer contains all of the data in the body of the request. Returns false if it does not or if it is not known if it does.

Example

use rocket::Data;

fn handler(data: Data) {
    if data.peek_complete() {
        println!("All of the data: {:?}", data.peek());
    }
}

A helper method to write the body of the request to any Write type.

This method is identical to io::copy(&mut data.open(), writer).

Example

use std::io;
use rocket::Data;

fn handler(mut data: Data) -> io::Result<String> {
    // write all of the data to stdout
    data.stream_to(&mut io::stdout())
        .map(|n| format!("Wrote {} bytes.", n))
}

A helper method to write the body of the request to a file at the path determined by path.

This method is identical to io::copy(&mut self.open(), &mut File::create(path)?).

Example

use std::io;
use rocket::Data;

fn handler(mut data: Data) -> io::Result<String> {
    data.stream_to_file("/static/file")
        .map(|n| format!("Wrote {} bytes to /static/file", n))
}