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node-scp-async's Introduction

New SCP module for NodeJS

A lightweight, fast and secure module to perform SCP commands for NodeJS based on SSH2

What's new

All functionalities are written using Promise. That means you can use it with Promise or Async/Await (No more callback hell, Yeah :) )

And other new features:

  • Scp a directory from local to remote server and from remote to local
  • Perform commands on remote server: mkdir, stat, check if path exists

Table of Contents

Installation

npm install --save node-scp
# or
yarn add node-scp

Guide

Scp file from local to remote server

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.uploadFile('./test.txt', '/workspace/test.txt')
        .then(response => {
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async function test() {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    await client.uploadFile('./test.txt', '/workspace/test.txt')
    // you can perform upload multiple times
    await client.uploadFile('./test1.txt', '/workspace/test1.txt')
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

Scp file from remote server to local

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.downloadFile('/workspace/test.txt', './test.txt')
        .then(response => {
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async function test () {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    await client.downloadFile('/workspace/test.txt', './test.txt')
    client.close() // remember to close connection after you finish
  } catch(e) {
    console.log(e)
  }
}

test()

Scp a directory from local to remote server

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.uploadDir('./local/dir', '/server/path')
        .then(response => {
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async funtion test () {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    await client.uploadDir('./local/dir', '/server/path')
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

Scp a directory from remote server to local

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.downloadDir('/server/path', 'local/path')
        .then(response => {
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async funtion test () {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    await client.downloadDir('./local/dir', '/server/path')
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

Create a directory on remote server

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.mkdir('/server/path')
        .then(response => {
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async function test() {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    await client.mkdir('/server/path')
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

Check if a path exists on remote server

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  const result = client.exists('/server/path')
        .then(result => {
          console.log(result)
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')
async function test() {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    const result = await client.exists('/server/path')
    console.log(result)
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

Get stats of a path on remote server

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.stat('/server/path')
        .then(result => {
          console.log(result)
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async function test() {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    cosnt result = await client.stat('/server/path')
    console.log(result)
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

List all files in remote directory

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.list('/server/path')
        .then(result => {
          console.log(result)
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async function test() {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    cosnt result = await client.list('/server/path')
    console.log(result)
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

Convert relative path to absolute path on remote server

Using Promise

const scp = require('node-scp')

scp({
  host: 'your host',
  port: 22,
  username: 'username',
  password: 'password',
  // privateKey: fs.readFileSync('./key.pem'),
  // passphrase: 'your key passphrase',
}).then(client => {
  client.realPath('/server/path')
        .then(result => {
          console.log(result)
          client.close() // remember to close connection after you finish
        })
        .catch(error => {})
}).catch(e => console.log(e))

Using async/await:

const scp = require('node-scp')

async function test() {
  try {
    const client = await scp({
      host: 'your host',
      port: 22,
      username: 'username',
      password: 'password',
      // privateKey: fs.readFileSync('./key.pem'),
      // passphrase: 'your key passphrase',
    })
    cosnt result = await client.realPath('/server/path')
    console.log(result)
    client.close() // remember to close connection after you finish
  } catch (e) {
    console.log(e)
  }
}

test()

Connection options

Below are available options you can pass when connecting to server:

  • host: - string - Hostname or IP address of the server. Default: localhost
  • port - integer - Port number of the server. Default: 22
  • forceIPv4 - boolean - Only connect via resolved IPv4 address for host. Default: false
  • forceIPv6 - boolean - Only connect via resolved IPv6 address for host. Default: false
  • username - string - Username for authentication. Default: (none)
  • password - string - Password for password-based user authentication. Default: (none)
  • privateKey - mixed - Buffer or string that contains a private key for either key-based or hostbased user authentication (OpenSSH format). Default: (none)
  • passphrase - string - For an encrypted private key, this is the passphrase used to decrypt it. Default: (none)
  • readyTimeout - integer - FHow long (in milliseconds) to wait for the SSH handshake to complete. Default: 20000
  • keepaliveInterval - integer - How often (in milliseconds) to send SSH-level keepalive packets to the server (in a similar way as OpenSSH's ServerAliveInterval config option). Set to 0 to disable. Default: 0
  • keepaliveCountMax - integer - How many consecutive, unanswered SSH-level keepalive packets that can be sent to the server before disconnection (similar to OpenSSH's ServerAliveCountMax config option). Default: 3
  • remoteOsType - string (value: posix | win32): use backslash \ for Windows or slash / on posix system (Linux, MacOS) when handling remote server path. Default: posix
  • Default authentication method order: None -> Password -> Private Key

Support

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node-scp-async's People

Contributors

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Watchers

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