Node.js is a powerful JavaScript runtime that allows developers to build server-side applications. One of the key features of Node.js is its ability to handle file uploads. In this tutorial, we will discuss how to upload files in Node.js using the popular 'multer' middleware.
First, we will need to install the 'multer' package by running the following command:
Next, we will import the package in our Node.js application:
We can then configure the 'multer' middleware by specifying the destination folder for the uploaded files and the file name. For example:
This will upload the files to the 'uploads' folder and keep the original file name.
Next, we can add the 'upload' middleware to our route handler. For example, if we want to upload a file through a form, we can create a route that handles the form submission:
The 'upload.single' method is used to handle a single file upload. The first parameter is the name of the file input field in the form. The second parameter is the route handler function. Inside the route handler, we can access the uploaded file using the 'req.file' object.
Finally, we can move the uploaded file to a permanent location and return a response to the client.
In this tutorial, we have discussed how to handle file uploads in Node.js using the 'multer' middleware. With this approach, you can easily upload files to your Node.js application and handle them as needed.