如何配置nodejs和multer以与render.com持久磁盘一起使用

Question

我有一个 render.com 的付费帐户，并且我创建了一个磁盘，安装在 /uploads 上，这是我的 multer 配置

import multer from "multer";
import fs from "fs";
import path from "path";

function createFileUploader(dirName, maxFileSize, fileFilterLogic) {
  const storage = multer.diskStorage({
    destination: (req, file, callback) => {
      const dir = path.resolve("/uploads", dirName);

      const cleanedDir = dir.replace(/^.*?[\\\/]/, "");

      if (!fs.existsSync(cleanedDir)) {
        try {
          fs.mkdirSync(cleanedDir, { recursive: true }); // Create directory recursively
        } catch (err) {
          console.error("Error creating directory:", err);

          return callback(err);
        }
      }
      console.log(cleanedDir);
      callback(null, cleanedDir);
    },
    filename: (req, file, callback) => {
      const extension = path.extname(file.originalname);
      const filename = `${file.fieldname}-${Date.now()}${extension}`;
      callback(null, filename);
    },
  });

  const upload = multer({
    storage: storage,
    limits: {
      fileSize: maxFileSize,
    },`your text`
    fileFilter: fileFilterLogic, // Apply the file filter logic here
  });

  return upload;
}

// Define the file filter logic function
export function fileFilterLogic(req, file, cb) {
  // Check file type
  if (
    file.mimetype === "image/jpeg" ||
    file.mimetype === "image/png" ||
    file.mimetype === "application/pdf" ||
    file.mimetype ===
      "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
  ) {
    // Accept the file
    cb(null, true);
  } else {
    // Reject the file
    cb(new Error("File type not supported"));
  }
}

// Example usage:
const cv = "./CVs";
const logo = "./logo";
const profileImg = "./profileImg";

const maxSize = 1024 * 1024 * 60; // 60MB

// Create the upload middleware with the provided parameters and file filter logic
export const uploadCv = createFileUploader(cv, maxSize, fileFilterLogic);
export const uploadLogo = createFileUploader(logo, maxSize, fileFilterLogic);
export const uploadProfileImg = createFileUploader(
  profileImg,
  maxSize,
  fileFilterLogic
);

我也尝试了一些方法，但仍然不起作用。

我希望当用户上传文件时我能够下载它们，并且如果上传图像，图像将显示在网络浏览器上

Answer 1

我也遇到了同样的问题。你有没有得到任何解决方案，我认为使用云存储对于 multer 来说是更好的选择。