actix-web/actix-multipart/README.md

actix-multipart

Multipart request & form support for Actix Web.

The [Multipart] extractor aims to support all kinds of multipart/* requests, including multipart/form-data, multipart/related and multipart/mixed. This is a lower-level extractor which supports reading multipart fields, in the order they are sent by the client.

Due to additional requirements for multipart/form-data requests, the higher level MultipartForm extractor and derive macro only supports this media type.

Examples

use actix_web::{post, App, HttpServer, Responder};

use actix_multipart::form::{json::Json as MpJson, tempfile::TempFile, MultipartForm};
use serde::Deserialize;

#[derive(Debug, Deserialize)]
struct Metadata {
    name: String,
}

#[derive(Debug, MultipartForm)]
struct UploadForm {
    #[multipart(limit = "100MB")]
    file: TempFile,
    json: MpJson<Metadata>,
}

#[post("/videos")]
pub async fn post_video(MultipartForm(form): MultipartForm<UploadForm>) -> impl Responder {
    format!(
        "Uploaded file {}, with size: {}",
        form.json.name, form.file.size
    )
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(move || App::new().service(post_video))
        .bind(("127.0.0.1", 8080))?
        .run()
        .await
}

cURL request:

curl -v --request POST \
  --url http://localhost:8080/videos \
  -F 'json={"name": "Cargo.lock"};type=application/json' \
  -F file=@./Cargo.lock

More available in the examples repo →