next_fileupload_api.ts

import { NextApiHandler, NextApiRequest } from "next";
import formidable from "formidable";
import path from "path";
import fs from "fs/promises";

export const config = {
  api: {
    bodyParser: false,
  },
};

const readFile = (
  req: NextApiRequest,
  saveLocally?: boolean
): Promise<{ fields: formidable.Fields; files: formidable.Files }> => {
  const options: formidable.Options = {};
  if (saveLocally) {
    options.uploadDir = path.join(process.cwd(), "/public/images");
    options.filename = (name, ext, path, form) => {
      return Date.now().toString() + "_" + path.originalFilename;
    };
  }
  options.maxFileSize = 4000 * 1024 * 1024;
  const form = formidable(options);
  return new Promise((resolve, reject) => {
    form.parse(req, (err, fields, files) => {
      if (err) reject(err);
      resolve({ fields, files });
    });
  });
};

const handler: NextApiHandler = async (req, res) => {
  try {
    await fs.readdir(path.join(process.cwd() + "/public", "/images"));
  } catch (error) {
    await fs.mkdir(path.join(process.cwd() + "/public", "/images"));
  }
  await readFile(req, true);
  res.json({ done: "ok" });
};

export default handler;

next_fileupload_frontend.ts

import { GetServerSideProps, NextPage } from "next";
import { useState } from "react";
import axios from "axios";
import fs from "fs/promises";
import path from "path";
import Link from "next/link";

interface Props {
  dirs: string[];
}

const Home: NextPage<Props> = ({ dirs }) => {
  const [uploading, setUploading] = useState(false);
  const [selectedImage, setSelectedImage] = useState("");
  const [selectedFile, setSelectedFile] = useState<File>();

  const handleUpload = async () => {
    setUploading(true);
    try {
      if (!selectedFile) return;
      const formData = new FormData();
      formData.append("myImage", selectedFile);
      const { data } = await axios.post("/api/image", formData);
      console.log(data);
    } catch (error: any) {
      console.log(error.response?.data);
    }
    setUploading(false);
  };

  return (
    <div className="max-w-4xl mx-auto p-20 space-y-6">
      <label>
        <input
          type="file"
          hidden
          onChange={({ target }) => {
            if (target.files) {
              const file = target.files[0];
              setSelectedImage(URL.createObjectURL(file));
              setSelectedFile(file);
            }
          }}
        />
        <div className="w-40 aspect-video rounded flex items-center justify-center border-2 border-dashed cursor-pointer">
          {selectedImage ? (
            <img src={selectedImage} alt="" />
          ) : (
            <span>Select Image</span>
          )}
        </div>
      </label>

      <button
        onClick={handleUpload}
        disabled={uploading}
        style={{ opacity: uploading ? ".5" : "1" }}
        className="bg-red-600 p-3 w-32 text-center rounded text-white"
      >
        {uploading ? "Uploading.." : "Upload"}
      </button>

      <div className="mt-20 flex flex-col space-y-3">
        {dirs.map((item) => (
          <Link key={item} href={"/images/" + item}>
            <a className="text-blue-500 hover:underline">{item}</a>
          </Link>
        ))}
      </div>
    </div>
  );
};

export const getServerSideProps: GetServerSideProps = async () => {
  const props = { dirs: [] };
  try {
    const dirs = await fs.readdir(path.join(process.cwd(), "/public/images"));
    props.dirs = dirs as any;
    return { props };
  } catch (error) {
    return { props };
  }
};

export default Home;

I've tried so many different things, but this was the only one that works. Thank you!

I struggled two days for storing images. I used several ways like multer and other but multer was not working as expected. Your tutorial gave me right direction. Thanks God bless you.

Bruh you the best

"Great work, brother! You've really outdone yourself."
I had given full two days, still it could not be done but your code worked...
𝗜 𝗷𝘂𝘀𝘁 𝘄𝗮𝗻𝘁 𝘁𝗼 𝗸𝗻𝗼𝘄 𝘄𝗵𝗶𝗰𝗵 𝗿𝗲𝘀𝗼𝘂𝗿𝗰𝗲(documentation) 𝘆𝗼𝘂 𝘂𝘀𝗲𝗱, 𝗰𝗮𝗻 𝘆𝗼𝘂 𝗽𝗹𝘇 𝘀𝗵𝗮𝗿𝗲 ?

why my images not working in production just after npm run build but working in development in next js using formidable?

why my images not working in production just after npm run build but working in development in next js using formidable?

same issue

Your code looks good, I will try it right now!

Ok LGTM, Thanks

Thank you i have done a lot of things to get this working seeing how easy i can do that in dotnet

Thanks!