Write file to a subdirectory node.js

Question

I am working with node and express and i have a directory structure like

public
 img
 css
 js
server.js

in server.js i have the following code for writing to a png file

fs.writeFile('testfile.png', imageData, function(err){
 res.send("file successfully created");
 });

this creates the file in the root i.e. with the following directory structure

public
 img
 css
 js
server.js
testfile.png

How do I create testfile.pnginside the img directory? simply using img/testfile.png, /img/testfile.png or /public/img/testfile.png does not work-- no file is created.

Help appreciated!

Answer 1

You can do this

'./public/img/testfile.png'

Or, you can give relative path like this

__dirname + '/public/img/testfile.png'

Also check for the permission of the directory img. May be the write permission is not given.

• algorithmicCoder: does the first one work? img is under public not the current directory?
• Salman: Oops. forgot to add public, edited.. did you check permissions?
• algorithmicCoder: ok that works...although i just realized i was not restarting the node server!..that probably has more to do with my issues :) will accept your answer though. Thanks!
• Lonnie Best: How do you do this with ecmascript modules, in a way that ESLINT won't complain?