Function create_form_data_payload_and_headers

pub fn create_form_data_payload_and_headers(
    name: &str,
    filename: Option<String>,
    content_type: Option<Mime>,
    file: Bytes,
) -> (Bytes, HeaderMap)

Constructs a multipart/form-data payload from bytes and metadata.

Returned header map can be extended or merged with existing headers.

Multipart boundary used is a random alphanumeric string.

Examples

use actix_multipart::test::create_form_data_payload_and_headers;
use actix_web::{test::TestRequest, web::Bytes};
use memchr::memmem::find;

let (body, headers) = create_form_data_payload_and_headers(
    "foo",
    Some("lorem.txt".to_owned()),
    Some(mime::TEXT_PLAIN_UTF_8),
    Bytes::from_static(b"Lorem ipsum."),
);

assert!(find(&body, b"foo").is_some());
assert!(find(&body, b"lorem.txt").is_some());
assert!(find(&body, b"text/plain; charset=utf-8").is_some());
assert!(find(&body, b"Lorem ipsum.").is_some());

let req = TestRequest::default();

// merge header map into existing test request and set multipart body
let req = headers
    .into_iter()
    .fold(req, |req, hdr| req.insert_header(hdr))
    .set_payload(body)
    .to_http_request();

assert!(
    req.headers()
        .get("content-type")
        .unwrap()
        .to_str()
        .unwrap()
        .starts_with("multipart/form-data; boundary=\"")
);