To upload images using Node.js, Express, and Mongoose, we use the express.multipart method.
For instance, we write
const express = require("express");
const http = require("http");
const app = express();
app.use(express.static("./public"));
app.use(express.methodOverride());
app.use(
express.multipart({
uploadDir: "./uploads",
keepExtensions: true,
})
);
app.use(app.router);
app.get("/upload", (req, res) => {
res.render("upload");
});
app.post("/upload", (req, res) => {
res.json(req.files);
});
http.createServer(app).listen(3000, () => {
console.log("App started");
});
to call express.multipart to return a middleware function that accepts uploads.
And then we get the uploaded file from req.files in the /upload route handler.
We use express.static to expose the /public folder as a static file folder.
