How to pass two parameters to node.js file via querystring?

Question

Consider the below code:

// upload.js
var fs = require('fs')
var newPath = "E:\\newPath";
var oldPath = "D:\\oldPath";

exports.uploadFile = function (req, res) {
fs.readFile(oldPath, function(err, data) {
    fs.writeFile(newPath, data, function(err) {
        fs.unlink(oldPath, function(){
            if(err) throw err;
            res.send("File uploaded to: " + newPath);
        });
    });
});
};

// app.js
var express = require('express'), // fetch express js library
upload = require('./upload'); // fetch upload.js you have just written

var app = express();
app.get('/upload', upload.uploadFile); 

app.listen(3000);

In the above code, I need to assign the new path dynamically by passing two parameters as query string such as

1. Drive and 2. Folder name.

How to give the query string in code file and how to run the program to achieve the GET request?

mscdex · Accepted Answer · 2014-05-12 11:44:16Z

2

You can access query-string parameters via req.query. Also, you could probably just use fs.rename instead of manually reading, writing, and unlinking a file.

answered May 12, 2014 at 11:44

mscdex

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3 Comments

thevan Over a year ago

Could you please come up with a simple example?

mscdex Over a year ago

req.query.drive and req.query.folder? For fs.rename it's just something like fs.rename(oldPath, newPath, function(err) { if (err) throw err; res.send('Rename successful'); });

mscdex Over a year ago

Also, you generally shouldn't use a GET request that changes things on the server. That should be reserved for other HTTP verbs, like POST. So you would use app.post('/upload', upload.uploadFile); and the client would POST to /upload?drive=E&folder=newPath. Then just assemble those two parameters to make a valid path.

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