| 1 | # express-fileupload Examples
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| 2 |
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| 3 | ## Basic File Upload
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| 4 | **Your node.js code:**
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| 5 | ```javascript
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| 6 | const express = require('express');
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| 7 | const fileUpload = require('express-fileupload');
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| 8 | const app = express();
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| 9 |
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| 10 | // default options
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| 11 | app.use(fileUpload());
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| 12 |
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| 13 | app.post('/upload', function(req, res) {
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| 14 | if (!req.files || Object.keys(req.files).length === 0) {
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| 15 | return res.status(400).send('No files were uploaded.');
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| 16 | }
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| 17 |
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| 18 | // The name of the input field (i.e. "sampleFile") is used to retrieve the uploaded file
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| 19 | let sampleFile = req.files.sampleFile;
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| 20 |
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| 21 | // Use the mv() method to place the file somewhere on your server
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| 22 | sampleFile.mv('/somewhere/on/your/server/filename.jpg', function(err) {
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| 23 | if (err)
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| 24 | return res.status(500).send(err);
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| 25 |
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| 26 | res.send('File uploaded!');
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| 27 | });
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| 28 | });
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| 29 | ```
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| 30 |
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| 31 | **Your HTML file upload form:**
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| 32 | ```html
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| 33 | <html>
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| 34 | <body>
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| 35 | <form ref='uploadForm'
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| 36 | id='uploadForm'
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| 37 | action='http://localhost:8000/upload'
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| 38 | method='post'
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| 39 | encType="multipart/form-data">
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| 40 | <input type="file" name="sampleFile" />
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| 41 | <input type='submit' value='Upload!' />
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| 42 | </form>
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| 43 | </body>
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| 44 | </html>
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| 45 | ```
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| 46 |
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| 47 | ## Multi-File Upload
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| 48 | express-fileupload supports multiple file uploads at the same time.
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| 49 |
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| 50 | Let's say you have three files in your form, each of the inputs with the name `my_profile_pic`, `my_pet`, and `my_cover_photo`:
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| 51 | ```html
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| 52 | <input type="file" name="my_profile_pic" />
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| 53 | <input type="file" name="my_pet" />
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| 54 | <input type="file" name="my_cover_photo" />
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| 55 | ```
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| 56 |
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| 57 | These uploaded files would be accessible like so:
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| 58 | ```javascript
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| 59 | app.post('/upload', function(req, res) {
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| 60 | // Uploaded files:
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| 61 | console.log(req.files.my_profile_pic.name);
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| 62 | console.log(req.files.my_pet.name);
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| 63 | console.log(req.files.my_cover_photo.name);
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| 64 | });
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| 65 | ```
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| 66 |
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