Not able to figure out why in upload.js file in the below code snippet is throwing me an error: app.get is not a function.
I have an index.js file where I have configured everything exported my app by module.exports = app and also I have app.set("upload") in it, but when I am trying to import app in upload.js file and using it, it is giving an error error: app.get is not a function.
below is the code of the index.js
const express = require("express");
const app = express();
const multer = require("multer");
const path = require("path");
const uploadRoutes = require("./src/routes/apis/upload.js");
// multer config
const storageDir = path.join(__dirname, "..", "storage");
const storageConfig = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, storageDir);
},
filename: (req, file, cb) => {
cb(null, Date.now() path.extname(file.originalname));
},
});
const upload = multer({ storage: storageConfig }); // local upload.
//set multer config
app.set("root", __dirname);
app.set("storageDir", storageDir);
app.set("upload", upload);
app.use("/api/upload", uploadRoutes);
const PORT = process.env.PORT || 5002;
if (process.env.NODE_ENV === "development") {
app.listen(PORT, () => {
console.log(`Server running in ${process.env.NODE_ENV} on port ${PORT}`);
});
} else {
module.exports.handler = serverless(app);
}
module.exports = app;
upload.js file
const express = require("express");
const router = express.Router();
const app = require("../../../index");
const uploadDir = app.get("storageDir");
const upload = app.get("upload");
router.post(
"/upload-new-file",
upload.array("photos"),
(req, res, next) => {
const files = req.files;
return res.status(200).json({
files,
});
}
);
module.exports = router;
CodePudding user response:
The problem is that you have a circular dependency.
App requires upload, upload requires app.
Try to pass app as a parameter and restructure upload.js to look like:
const upload = (app) => {
// do things with app
}
module.exports = upload
Then import it in app and pass the reference there (avoid importing app in upload).
import upload from './path/to/upload'
const app = express();
// ...
upload(app)