Sample code for 30+ languages & platforms
Swift

SFTP Write Text File

See more SFTP Examples

Demonstrates how to create a new text file on the remote SSH server, append text by calling WriteFileText one or more times, and then close the file.

Chilkat Swift Downloads

Swift

func chilkatTest() {
    var success: Bool = false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let sftp = CkoSFtp()!

    // Set some timeouts, in milliseconds:
    sftp.connectTimeoutMs = 5000
    sftp.idleTimeoutMs = 15000

    // Connect to the SSH server.  
    // The standard SSH port = 22
    // The hostname may be a hostname or IP address.
    var hostname: String? = "sftp.example.com"
    var port: Int = 22
    success = sftp.connect(hostname: hostname, port: port)
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Authenticate with the SSH server.  Chilkat SFTP supports
    // both password-based authenication as well as public-key
    // authentication.  This example uses password authenication.
    success = sftp.authenticatePw(login: "myLogin", password: "myPassword")
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // After authenticating, the SFTP subsystem must be initialized:
    success = sftp.initializeSftp()
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Open a file on the server for writing.
    // "createTruncate" means that a new file is created; if the file already exists, it is opened and truncated. 
    var handle: String? = sftp.openFile(filename: "myTest.txt", access: "writeOnly", createDisp: "createTruncate")
    if sftp.lastMethodSuccess != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Write some text to the file:
    success = sftp.writeFileText(sftpHandle: handle, charset: "ansi", textData: "abcdefghijklmnopqrstuvwxyz")
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    success = sftp.writeFileText(sftpHandle: handle, charset: "ansi", textData: "1234567890")
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    success = sftp.writeFileText(sftpHandle: handle, charset: "ansi", textData: "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Close the file.
    success = sftp.closeHandle(sftpHandle: handle)
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    print("Success.")

}