mirror of
https://github.com/actix/examples
synced 2025-02-23 17:53:02 +01:00
62 lines
1.9 KiB
Rust
62 lines
1.9 KiB
Rust
use std::io::Write;
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use actix_multipart::Multipart;
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use actix_web::{middleware, web, App, Error, HttpResponse, HttpServer};
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use futures_util::TryStreamExt as _;
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use uuid::Uuid;
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async fn save_file(mut payload: Multipart) -> Result<HttpResponse, Error> {
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// iterate over multipart stream
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while let Some(mut field) = payload.try_next().await? {
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// A multipart/form-data stream has to contain `content_disposition`
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let content_disposition = field.content_disposition();
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let filename = content_disposition
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.get_filename()
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.map_or_else(|| Uuid::new_v4().to_string(), sanitize_filename::sanitize);
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let filepath = format!("./tmp/{}", filename);
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// File::create is blocking operation, use threadpool
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let mut f = web::block(|| std::fs::File::create(filepath)).await??;
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// Field in turn is stream of *Bytes* object
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while let Some(chunk) = field.try_next().await? {
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// filesystem operations are blocking, we have to use threadpool
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f = web::block(move || f.write_all(&chunk).map(|_| f)).await??;
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}
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}
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Ok(HttpResponse::Ok().into())
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}
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async fn index() -> HttpResponse {
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let html = r#"<html>
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<head><title>Upload Test</title></head>
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<body>
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<form target="/" method="post" enctype="multipart/form-data">
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<input type="file" multiple name="file"/>
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<button type="submit">Submit</button>
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</form>
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</body>
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</html>"#;
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HttpResponse::Ok().body(html)
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}
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#[actix_web::main]
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async fn main() -> std::io::Result<()> {
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std::env::set_var("RUST_LOG", "info");
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std::fs::create_dir_all("./tmp")?;
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HttpServer::new(|| {
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App::new().wrap(middleware::Logger::default()).service(
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web::resource("/")
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.route(web::get().to(index))
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.route(web::post().to(save_file)),
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)
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})
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.bind(("127.0.0.1", 8080))?
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.run()
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.await
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}
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