SFTP Smart Services

Overview

Contains multiple Smart Services for interacting with a remote file server via SFTP, FTP, or SCP.  Using these services, an Appian application can be configured to send and receive files, folders, and metadata in a process.  Features support for zlib compression.

Key Features & Functionality

Smart Services included:

  • SFTP:
    • Remove Directory Over SFTP (Basic Credentials)
    • Send File Over SFTP
    • Send File Over SFTP (Basic Credentials)
    • Receive File Over SFTP
    • Receive File Over SFTP (Basic Credentials)
    • Rename File Over SFTP
    • Get Remote Directory Contents Over SFTP
    • Get Remote Directory Contents Over SFTP (Basic Credentials)
    • Create Directory Over SFTP
    • Create Directory Over SFTP (Basic Credentials)
  • SCP:
    • Send File Over SCP
    • Receive File Over SCP
  • FTP:
    • Send File Over FTP
    • Receive File Over FTP
    • Receive Folder Over FTP
  • FTPS
    • Receive Folder Over FTPS
    • Send File Over FTPS (Basic Credentials)

All smart services in the package use Secure Credentials Store.

Anonymous
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  • Hi team!

    Using 'Get Remote Directory Contents Over SFTP' smart service we´re seeing the following error:

    2023-01-24 10:06:45,716 [ajp-nio-0.0.0.0-8009-exec-2111] ERROR com.appiancorp.process.engine.UnattendedJavaActivityRequest - An error occurred while executing activity: id=7559, classname=com.appian.ps.plugins.sftpsmartservices.GetRemoteDirectoryContentsOverSFTP
    com.appiancorp.suiteapi.process.exceptions.SmartServiceException: userMsg[error.sftp_conn=Error establishing SFTP connection. Confirm your hostname, username and password. See application server log for more details. Error Message: Session.connect: java.io.IOException: End of IO Stream Read]
    at com.appiancorp.suiteapi.process.exceptions.SmartServiceException$Builder.build(SmartServiceException.java:145)
    at com.appian.ps.plugins.sftpsmartservices.GetRemoteDirectoryContentsOverSFTP.createException(GetRemoteDirectoryContentsOverSFTP.java:203)
    ......................
    Caused by: com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: End of IO Stream Read
    at com.jcraft.jsch.Session.connect(Session.java:565)
    at com.jcraft.jsch.Session.connect(Session.java:183)
    at com.appian.ps.plugins.sftpsmartservices.SFTPConfig.connect(SFTPConfig.java:179)
    at com.appian.ps.plugins.sftpsmartservices.GetRemoteDirectoryContentsOverSFTP.run(GetRemoteDirectoryContentsOverSFTP.java:66)

    Could you help us to identify the error?

    This communication has been in working until last week, so we know that its not a problem with hostname/username/pw.

    Thanks in advance.

  • Hello ,

    Have you upgraded the plugin in recent days? Check for the connection in WinSCP tool with the same credentials provided to smart service.

    Thanks

  • Also we have tested the conection to the new customer ftp version in Filezilla and it works, the problem is in Appian.

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