While developing a Node application on a Mac, I attempted to write a file into a Windows share using the fs module. It seems to be treating the entire path as a file name, and instead of saving to the file to the proper directory, it saves it to the working directory.
const fs = require('fs')
var filePath = '\\\\hostname\\share\\...\\test.txt'
fs.writeFile(filePath, 'testing', function(err){
if(err) console.error(err)
})
Is there a simple way to access this share from a Mac?
Related
I am creating an application on nodejs that has to read contents of a folder in the install location. The installer creates the directory 'cert' at the install location.
My code is:
const dircert = './cert'
files = fs.readdirSync(dircert)
if (!files.length) {
***some code***
} else {
files.forEach(file => {
if (path.extname(file) == '.key') {
pathkey = path.resolve(dircert, file)
}
if (path.extname(file) == '.crt') {
pathcert = path.resolve(dircert, file)
}
})
This runs fine in windows but not in Linux. The installer is not able to read the contents. What do I need to change to ensure that it works in both? I am pretty new to linux.
The application is getting installed in ProgramFiles in windows but in /opt/AppName in linux. Please suggest.
Editing to add: So this cert folder is getting created under /opt/AppName/ in linux and under c:/ProgramFiles/company/App Name/ in Windows. While this code runs fine on windows, on linux this code tries to look for cert at root. How do I make sure it looks for the folder at the installed location which is /opt/AppName, and it should work on both the platforms.
It's unclear from your question how the files are being installed and how the code is being executed. Both of these matter in Linux. You can use the __dirname node variable with path.resolve() to get the directory of the current module. If cert is below the current module, you can use the following code to resolve the location:
const path = require('path');
const dircert = path.resolve(__dirname, 'cert');
If you're using ES Modules:
import path from 'path';
const dircert = path.resolve('cert').
I want to get the list of exe or desktop application(installed local PC) in electron js desktop application.I tried require('fs') but it list only folder from root path.
const fs = require('fs');
const root = fs.readdirSync('/')
console.log(root);
how to get only exe file
A simple way on Windows. Might take some time to retrieve the list.
const { execSync } = require('child_process');
let list = execSync('wmic product get name,version');
console.log(list.toString());
The best way would be writing a native node module using N-API to do this.
I knew nothing about fs until I was learning to use casperjs to scrape some content from a website and save them to a file. Following some examples on the web, I write this file scrape.js (The json data has been tested so it has nothing to do with the issue):
var fs = require('fs');
var url = "http://w.nycweb.io/index.php?option=com_k2&view=itemlist&id=4&Itemid=209&format=json";
var casper = require('casper').create();
casper.start(url,function(){
var json = JSON.parse(this.fetchText('pre'));
var jsonOfItems={},items = json.items;
items.forEach(function(item){
jsonOfItems[item.id] = item.introtext.split('\n');
})
fs.write('videoLinks.json',JSON.stringify(jsonOfItems),function(err){
if (err) console.log(err);
console.log('videoLinks.json saved');
})
});
casper.run();
When I do casperjs scrape.js in command line of my Ubuntu 14.04 server, I won't see the file saved message as expected, although the file is properly saved. So this is the first question: why the callback isn't running at all?
Secondly, I also tried fs.writeFile, but when I replace fs.write with it, the file isn't saved at all, nor is there any error information.
I do notice that in casper documentation it's said that casper is not a node.js module and some module of node.js won't be available, but I doubt it has anything to do with my issues. And I think it worths to mention that previously when I run this script I only get a respond like
I'm 'fs' module.
I had to follow this question to reinstall fs module globally to get it working.
fs.write expects a file descriptor where you are trying to give it a filename. Try fs.writeFile. https://nodejs.org/dist/latest-v4.x/docs/api/fs.html#fs_fs_writefile_file_data_options_callback
Edit: Oh you tried that. Are you sure it didn't write it somewhere like the root directory? Tried a full path in there?
And what version of node are you running?
Supervisor is a package for Node.js that monitors files in your app directory for modifications and reloads the app when a modification occurs.
This script interprets symbolic links as regular files and logs out a warning. I would like to fork Supervisor so that either this can be fixed entirely or that a more descriptive warning is produced.
How can I use the File System module of Node.js to determine if a given file is really an symbolic link?
You can use fs.lstat and then call statis.isSymbolicLink() on the fs.Stats object that's passed into your lstat callback.
fs.lstat('myfilename', function(err, stats) {
console.log(stats.isSymbolicLink());
});
Seems like you can use isSymbolicLink()
const files = fs.readdirSync(dir, {encoding: 'utf8', withFileTypes: true});
files.forEach((file) => {
if (file.isSymbolicLink()) {
console.log('found symlink!');
}
}
I am trying to upload a file into my hosting server using node and easy-ftp.
I try with the following code:
var EasyFtp = require ("easy-ftp");
var ftp = new EasyFtp();
var config = {
host:'homexxxxx.1and1-data.host',
type:'SFTP',
port:'22',
username:'u90xxxx',
password:"mypass"
};
ftp.connect(config);
ftp.upload("/test/test.txt", "/test.txt", function(err){
if (err) throw err;
ftp.close();
});
No error message but no file uploaded
I tried the same using promises
const EasyFTP = require('easy-ftp-extra')
const ftp = new EasyFTP()
const config = {
host:'homexxxxx.1and1-data.host',
type:'SFTP',
port:'22',
username:'u90xxxx',
password:"mypass"
};
ftp.connect(config);
ftp.upload('/test.txt', '/test.txt')
.then(console.log)
.catch(console.error)
ftp.upload()
The same issued. No file is uploaded. No error in node console.
The config is the same used in filezilla to transfer files. SFTP protocol. Everything working well with filezilla.
What I am doing wrong?
Looks like you may have a path problem over here.
"/test/test.txt"
The path specified will try to take file from root folder like "c:\test\test.txt".
Assuming you want the file to be taken from your project folder try this path:
"./test/test.txt"
Other things in your code are precisely the same as in mine and mine works.
For me, it was just silently failing, and intelli-sense was not available.
npm remove easy-ftp
npm install easy-ftp
npm audit fix --force until no more vulnerabilities
Afterwards, intelli-sense was available and it started working.