What is jsftp?
jsftp is a lightweight FTP client for Node.js that allows you to interact with FTP servers. It supports a variety of FTP operations such as uploading, downloading, renaming, and deleting files, as well as creating and removing directories.
What are jsftp's main functionalities?
Connecting to an FTP server
This code demonstrates how to connect to an FTP server using jsftp. You need to provide the host, username, and password for the FTP server.
const JSFtp = require('jsftp');
const ftp = new JSFtp({
host: 'ftp.example.com',
user: 'username',
pass: 'password'
});
ftp.auth('username', 'password', (err, res) => {
if (err) return console.error(err);
console.log('Connected to FTP server');
});
Uploading a file
This code demonstrates how to upload a file from the local filesystem to the FTP server using jsftp.
ftp.put('local/path/to/file.txt', 'remote/path/to/file.txt', err => {
if (err) return console.error(err);
console.log('File uploaded successfully');
});
Downloading a file
This code demonstrates how to download a file from the FTP server to the local filesystem using jsftp.
ftp.get('remote/path/to/file.txt', 'local/path/to/file.txt', err => {
if (err) return console.error(err);
console.log('File downloaded successfully');
});
Listing files in a directory
This code demonstrates how to list files in a directory on the FTP server using jsftp.
ftp.ls('remote/path/to/directory', (err, res) => {
if (err) return console.error(err);
res.forEach(file => {
console.log(file.name);
});
});
Deleting a file
This code demonstrates how to delete a file on the FTP server using jsftp.
ftp.raw('DELE', 'remote/path/to/file.txt', (err, res) => {
if (err) return console.error(err);
console.log('File deleted successfully');
});
Other packages similar to jsftp
ftp
The 'ftp' package is another FTP client for Node.js. It provides similar functionalities to jsftp, such as connecting to an FTP server, uploading, downloading, and deleting files. However, 'ftp' is known for its simplicity and ease of use, making it a good choice for basic FTP operations.
promise-ftp
The 'promise-ftp' package is a promise-based FTP client for Node.js. It offers similar functionalities to jsftp but uses promises instead of callbacks, which can make the code cleaner and easier to manage, especially for complex workflows.
ssh2-sftp-client
The 'ssh2-sftp-client' package is an SFTP client for Node.js. While it focuses on SFTP rather than FTP, it provides similar functionalities such as uploading, downloading, and managing files on a server. It is built on top of the 'ssh2' package and is known for its reliability and performance.
jsftp
A client FTP library for NodeJS that focuses on correctness, clarity
and conciseness. It doesn't get in the way and plays nice with streaming APIs.
Warning: The latest version (1.0.0) of jsftp breaks API compatibility with previous
versions, it is NOT a drop-in replacement. Please be careful when upgrading. The
API changes are not drastic at all and it is all documented below. If you do not
want to upgrade yet you should stay with version 0.6.0, the last one before the
upgrade. The API docs below are updated for 1.0.
Starting it up
var JSFtp = require("jsftp");
var Ftp = new JSFtp({
host: "myserver.com",
port: 3331,
user: "user",
pass: "1234"
});
jsftp gives you access to all the raw commands of the FTP protocol in form of
methods in the Ftp
object. It also provides several convenience methods for
actions that require complex chains of commands (e.g. uploading and retrieving
files, passive operations), as shown below.
When raw commands succeed they always pass the response of the server to the
callback, in the form of an object that contains two properties: code
, which
is the response code of the FTP operation, and text
, which is the complete
text of the response.
Raw (or native) commands are accessible in the form Ftp.raw["command"](params, callback)
Thus, a command like QUIT
will be called like this:
Ftp.raw.quit(function(err, data) {
if (err) return console.error(err);
console.log("Bye!");
});
and a command like MKD
(make directory), which accepts parameters, looks like this:
Ftp.raw.mkd("/new_dir", function(err, data) {
if (err) return console.error(err);
console.log(data.text);
console.log(data.code);
});
API and examples
new Ftp(options)
options
is an object with the following properties:
{
host: 'localhost',
port: 3333,
user: 'user',
pass: 'pass',
}
Creates a new Ftp instance.
Ftp.host
Host name for the current FTP server.
Ftp.port
Port number for the current FTP server (defaults to 21).
Ftp.socket
NodeJS socket for the current FTP server.
Ftp.features
Array of feature names for the current FTP server. It is
generated when the user authenticates with the auth
method.
Ftp.system
Contains the system identification string for the remote FTP server.
Methods
Ftp.raw.FTP_COMMAND([params], callback)
All the standard FTP commands are available under the raw
namespace. These
commands might accept parameters or not, but they always accept a callback
with the signature err, data
, in which err
is the error response coming
from the server (usually a 4xx or 5xx error code) and the data is an object
that contains two properties: code
and text
. code
is an integer indicating
the response code of the response and text
is the response string itself.
Ftp.auth(username, password, callback)
Authenticates the user with the given username and password. If null or empty
values are passed for those, auth
will use anonymous credentials. callback
will be called with the response text in case of successful login or with an
error as a first parameter, in normal Node fashion.
Ftp.ls(filePath, callback)
Lists information about files or directories and yields an array of file objects
with parsed file properties to the callback
. You should use this function
instead of stat
or list
in case you need to do something with the individual
file properties.
ftp.ls(".", function(err, res) {
res.forEach(function(file) {
console.log(file.name);
});
});
Ftp.list(filePath, callback)
Lists filePath
contents using a passive connection. Calls callback with an
array of strings with complete file information.
ftp.list(remoteCWD, function(err, res) {
res.forEach(function(file) {
console.log(file.name);
});
});
Ftp.get(remotePath, callback)
Gives back a paused socket with the file contents ready to be streamed,
or calls the callback with an error if not successful.
var str = "";
ftp.get('remote/path/file.txt', function(err, socket) {
if (err) return;
socket.on("data", function(d) { str += d.toString(); })
socket.on("close", function(hadErr) {
if (hadErr)
console.error('There was an error retrieving the file.');
});
socket.resume();
});
Ftp.get(remotePath, localPath, callback)
Stores the remote file directly in the given local path.
ftp.get('remote/file.txt', 'local/file.txt', function(hadErr) {
if (hadErr)
console.error('There was an error retrieving the file.');
else
console.log('File copied successfully!');
});
Ftp.put(source, remotePath, callback)
Uploads a file to filePath
. It accepts a string with the local path for the
file or a Buffer
as a source
parameter.
ftp.put(buffer, 'path/to/remote/file.txt', function(hadError) {
if (!hadError)
console.log("File transferred successfully!");
});
Ftp.rename(from, to, callback)
Renames a file in the server. from
and to
are both filepaths.
ftp.rename(from, to, function(err, res) {
if (!err)
console.log("Renaming successful!");
});
Ftp.keepAlive()
Refreshes the interval thats keep the server connection active.
You can find more usage examples in the unit tests. This documentation
will grow as jsftp evolves.
Installation
npm install jsftp
Test coverage
In order to run coverage reports:
npm install --dev
make coverage
Current overall coverage rate:
lines......: 92.1% (316 of 343 lines)
functions..: 91.0% (71 of 78 functions)
Tests
To run tests:
npm install --dev
make test
License
See LICENSE.