Error code looks like:
{ Error: ENOENT: no such file or directory, open 'sad' errno: -2, code: 'ENOENT', syscall: 'open', path: 'sad' }
where 'sad' is the name of file I would like to write to and it doesn't exist.
Code looks like this:
fs.writeFile(filename, JSON_string, { flag: 'w' }, function(err){
if(err){
return console.error(err);
}
return JSON_string;
});
There are other similar questions, but they are all wrong in their path, starting or not starting with /, I just want to write a file on root from where I run this node.js application (it is also initialized with npm in this directory..).
Running with
sudo node server4.js
Doesnt work either.
Changing flags to w+ or wx or whatever, doesn't help.
Code works if file exists.
Node v9+.
I need to use writeFile() function.
This is working for me, please check if this works in your system:
var fs = require('fs')
fs.writeFile('./myfile.txt', 'Content to write', { flag: 'w' }, function(err) {
if (err)
return console.error(err);
fs.readFile('./myfile.txt', 'utf-8', function (err, data) {
if (err)
return console.error(err);
console.log(data);
});
});
(besides writing it also reads to confirm)
Related
fs.open('./test.txt',(err, fd) => {
fs.writeFile(fd, 'proba', (err) => {
console.log(err)
})
})
In this example when I use fd as first argument in fs.writeFile I got error:
[Error: EBADF: bad file descriptor, write] {
errno: -9,
code: 'EBADF',
syscall: 'write'
}
But if I instand of fd put path of file ('./test.txt') everything works fine.
What is happening, why I can't use file descriptor in this situation.
As I found in documentation it should be possible to use it on this way with file descriptor parameter.
When I try to run your code on node.js 14.4.0 on Windows 10, I get an EPERM error. I don't see the same error you get. I can fix that error, by passing in the open mode to fs.open() so it doesn't default to readonly. Here's the code that worked for me:
const fs = require('fs');
fs.open('test.txt', 'a+', (err, fd) => {
if (err) {
console.log(err);
} else {
fs.writeFile(fd, Buffer.from('proba'), (err) => {
if (err) console.log(err);
});
}
});
I would agree with the other commentor that it really doesn't make sense to use fs.writeFile() with fs.open() as fs.write() is more appropriate and a lot more clear what the code actually does.
I have static folder, this:
App.use('/getUnity', Express.static(__dirname + '/uax_vr_uploads/unityFiles'));
I want delete file in folder, not working this 2 fs.unlink:
fs.unlink('http://localhost:3002/getUnity/' + response[0][item].varyant_object, (error) => {
if (error) {
console.log(error);
} else {
console.log('Deleted');
}
});
OR
fs.unlink('http://localhost:3002/uax_vr_uploads/unityFiles/' + response[0][item].varyant_object, (error) => {
if (error) {
console.log(error);
} else {
console.log('Deleted');
}
});
Console LOG:
[Error: ENOENT: no such file or directory, unlink 'http://localhost:3002/getUnity/file-1590880543263.unity3d'] {
errno: -2,
code: 'ENOENT',
syscall: 'unlink',
path: 'http://localhost:3002/getUnity/file-1590880543263.unity3d'
}
If you're trying to remove a file from your static folder, then you need to pass a valid OS path name to fs.unlink() not a URL that only your server would know about.
If the file on your disk that you're actually trying to remove is this:
/uax_vr_uploads/unityFiles/file-1590880543263.unity3d
Then, judging by your code, it looks like you want this:
fs.unlink('/uax_vr_uploads/unityFiles/' + response[0][item].varyant_object);
Having an issue with fs.writeFile in my nodejs app running locally where im getting an error of this below,
I am running on localhost xampp also on windows if that may be an issue?
[Error: ENOENT: no such file or directory, open 'C:\Users\exampleuser\Desktop\examplenodejspath\product\sku123.json'] {
errno: -4058,
code: 'ENOENT',
syscall: 'open',
path: 'C:\\Users\\exampleuser\\Desktop\\examplenodejspath\\product\\sku123.json'
}
Below is a copy of the code.
var product = {"SKU": "sku123","name": "test"};
fs.writeFile(__dirname + "/product/" + product.SKU + ".json", product, 'utf8', function (err) {
if (err) {
return console.log(err);
}
console.log("product was saved!");
});
I can confirm the path is correct. but for some reason it still returns its not correct.
Any help would be appericated
I'm using this function and get this error
{ Error: EBADF: bad file descriptor, write
at Error (native) errno: -4083, code: 'EBADF', syscall: 'write' }
Function:
saveMap: function(body) {
var fd = fs.openSync("C:/mypath", 'w');
fs.writeFile(fd, body, function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
fs.closeSync(fd);
},
I'm using fd so it can create the file if it doesn't exist. (I've tested with just writeFile on an existing file and it worked).
It's probably something obvious apologize for the noob question.
I'm trying to make a download link on my server for a zip file and I'm currently getting this error: (Note, still just testing it on local machine)
{ [Error: ENOENT: no such file or directory, stat 'C:\Users\Jordan\Desktop\Websites\HappyCamel\Users\Jordan\Desktop\Websites\HappyCamel']
errno: -4058,
code: 'ENOENT',
syscall: 'stat',
path: 'C:\\Users\\Jordan\\Desktop\\Websites\\HappyCamel\\Users\\Jordan\\Desktop\\Websites\\HappyCamel',
expose: false,
statusCode: 404,
status: 404 }
The relevant code is this:
router.get('/file/:name', function(req, res, next) {
console.log('test123'); //successfully prints to console
res.download('Users/Jordan/Desktop/Websites/HappyCamel/', 'test123.zip', function(err) {
console.log('test456'); //successfully prints to console
if(err) {
console.log(err) //I'm assuming this is source of logged error
} else {
console.log("no error"); //doesn't print
}
});
})
edit:
Fixed it with changing this line:
res.download('Users/Jordan/Desktop/Websites/HappyCamel/', 'test123.zip', function(err) {
to
res.download('./test123.zip', 'test123.zip', function(err) {
but now I get
angular.min.js:114 ReferenceError: success is not defined
error on my browser, but no errors in my node console (my "no error" line is printing)
you are using relative path. when you do this:
res.download('Users/Jordan/Desktop/Websites/HappyCamel/', 'test123.zip', function(err) {
it will look for Users/Jordan/Desktop/Websites/HappyCamel/ inside your current file's directory. looks like what you need is full path, or better a correct relative path- from the error it looks like the file is located with your code, so this should do:
res.download('./', 'test123.zip', function(err) {