Please help me to understand file upload

[krishnaTORQUE]

use actix_multipart::Multipart;
use actix_web::{web, App, HttpRequest, HttpResponse, HttpServer};
use futures::stream::StreamExt;
// use std::fs::File;
use std::{io, str};

 while let Some(item) = payload.next().await {
        let field = item.unwrap();

        let content_type = field.content_disposition();
        let filename = content_type.get_filename().unwrap();

        // let mut file = File::create(format!("pub/{}", filename)).unwrap();
        // file.write_all(parts[0].data().await.unwrap().unwrap().bytes())
        // .unwrap();

        println!("content_type: {}", content_type);
        println!("file name: {}", filename);

        // while let Some(chunk) = field.next().await {
        //     println!("-- CHUNK: \n{:?}", str::from_utf8(&chunk.unwrap()));
        // }
    }

    HttpResponse::Ok().body("Done")

This above code is working fine.
But How can I get the file & check mime type & size & other meta data & move the file to another directory?
Thank you

[krishnaTORQUE]

I got the solution

 while let Some(item) = payload.next().await {
        let mut field = item.unwrap();

        let content_type = field.content_disposition();

        println!("{}", field.name());
        println!("CONTENT TYPE: {}", content_type);
        println!("FILE NAME: {}", content_type.get_filename().unwrap());
        println!("UPLOAD NAME FIELD: {}", content_type.get_name().unwrap());
        println!("MIME TYPE: {}", field.content_type());
        println!("FIELD: {:?}", field);

        let file_path = format!("pub/{:?}.jpg", time::Instant::now());
        let mut create_file = File::create(file_path).unwrap();

        while let Some(chunk) = field.next().await {
            let data = chunk.unwrap();
            create_file.write_all(&data).unwrap();
        }
    }

[measproem]

Hi
I have two more problems

1. How to get file extension?
2. How to rename file by keep it's extension as it is?

[asonix]

You can use rsplit_once to get the file extension and file name separately

let (name, extension) = file_name.rsplit_once('.').unwrap();

let new_name = format!("my-new-name.{}", extension);

[measproem]

Thank so you much