file-upload

# Installation
# rails active_storage:install
# rails db:migrate

# config/storage.yml
local:

package com.example.demo.controller;

import com.example.demo.dto.FileMetadata;
import com.example.demo.service.FileStorageService;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpHeaders;

<%= form_with model: @document, data: { controller: "upload" } do |form| %>
  <div class="field">
    <%= form.label :file, "Attach a document" %>
    <%= form.file_field :file,
          direct_upload: true,
          data: { upload_target: "input" } %>

export interface UploadHandle {
  promise: Promise<{ status: number; body: string }>;
  xhr: XMLHttpRequest;
}

export function uploadFile(

import { useState, useRef } from 'react'
import { DirectUpload } from '@rails/activestorage'

interface ImageUploadProps {
  onUploadComplete: (blobId: string) => void
  maxSize?: number

<?php

namespace App\Dto;

use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\Validator\Constraints as Assert;

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

import { S3Client } from "@aws-sdk/client-s3";
import { createPresignedPost, PresignedPost } from "@aws-sdk/s3-presigned-post";
import { randomUUID } from "crypto";

const s3 = new S3Client({ region: process.env.AWS_REGION });
const BUCKET = process.env.UPLOAD_BUCKET!;

import io
import os
from uuid import uuid4
from PIL import Image, UnidentifiedImageError

ALLOWED_FORMATS = {"JPEG", "PNG", "WEBP"}

@Entity
@Table(name = "stored_files")
public class StoredFile {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)

import { Readable } from "node:stream";
import { S3Client } from "@aws-sdk/client-s3";
import { Upload } from "@aws-sdk/lib-storage";

const s3 = new S3Client({ region: process.env.AWS_REGION });
const BUCKET = process.env.UPLOAD_BUCKET!;

require 'sinatra/base'
require_relative 'upload_store'

class UploadApp < Sinatra::Base
  MAX_BYTES = 50 * 1024 * 1024