Information
  • Author: Appian Corporation
  • Type: Plug-in (Function & Smart Service)
  • Support: This plug-in or utility is not supported by the author. The content is free to use with a licensed product, but it is made available as-is and Community supported.
  • Industry: All Industries
  • Compatible Version(s): 24.2
  • First Released:
  • Last Updated:
  • Cost: Free
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Home » AppMarket » SFTP Smart Services

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
  • in reply to Arpit Pipersaniya

    The error means the file path configured is either not reachable/user does not have enough permissions to access the remote server location.Please check if you are able to send the file over SFTP from WinSCP and if the issues still persist please share with us the configuration of the node and the server log file

  • in reply to raghulvishnud

    Thank you.

    After upgrade to 2.2.1 and using new nodes to connect to SFTP I’ve started getting following error: “The system cannot find the path specified”.

    Earlier(before upgrading) it’s been working fine with all same data fed to input parameters of deprecated nodes.

    Any leads, please?

  • in reply to raghulvishnud

    I agree these are deprecated. But would deprecated nodes be continue to work as they used to?

    Or is it mandate to replace all deprecated nodes with new ones?

    (There are more than 100+ instances in our project where we use to connect to SFTP)

  • in reply to baghavathit0001

    Hi ,

    We believe it to be a configuration issue from sftp server/appian server. Please try out the below steps

    1. Check Hostname, Password username private key and the passphrase configured in the third party credentials is correct in the process model

    2. Check if the same file is received using sftp tools like WinSCP.If it works please share the additional configurations if any made in WinSCP to achieve the connection

    3. If still unresolvable share us the sandbox environment to replicate the issue

  • Hi Team, I'm getting the following error, when we try to receive files from SFTP, is there any issue with the plugin? 

    2021-08-27 15:00:04,219 [Appian Work Item - 16547 - execution01 : UnattendedJavaActivityRequest] ERROR com.appian.ps.plugins.sftpsmartservices.GetRemoteDirectoryContentsOverSFTP - Error connecting to SFTP server
com.jcraft.jsch.JSchException: SSH_MSG_DISCONNECT: 11 Too many bad authentication attempts! 
	at com.jcraft.jsch.Session.read(Session.java:1004)
	at com.jcraft.jsch.UserAuthPassword.start(UserAuthPassword.java:91)
	at com.jcraft.jsch.Session.connect(Session.java:470)
	at com.jcraft.jsch.Session.connect(Session.java:183)
	at com.appian.ps.plugins.sftpsmartservices.SFTPConfig.connect(SFTPConfig.java:177)
  • in reply to raghulvishnud

    Hi, raghulvishnud,

    Please find the attached log file.

    Fullscreen stacktrace (2).log Download 
    2021-08-05 03:05:09,229 [Appian Work Item - 6434 - execution01 : UnattendedJavaActivityRequest] ERROR com.appian.ps.plugins.sftpsmartservices.ReceiveFileOverSFTP - Error connecting to SFTP server
com.jcraft.jsch.JSchException: Auth fail
        at com.jcraft.jsch.Session.connect(Session.java:519)
        at com.jcraft.jsch.Session.connect(Session.java:183)
        at com.appian.ps.plugins.sftpsmartservices.SFTPConfig.connect(SFTPConfig.java:177)
        at com.appian.ps.plugins.sftpsmartservices.ReceiveFileOverSFTP.run(ReceiveFileOverSFTP.java:69)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:131)
        at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:52)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:131)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:125)
        at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:27)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:125)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:21)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
        at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:116)
        at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68)
        at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:123)
        at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
        at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:94)
        at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:239)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
2021-08-05 03:05:09,230 [Appian Work Item - 6434 - execution01 : UnattendedJavaActivityRequest] ERROR com.appiancorp.process.engine.UnattendedJavaActivityRequest - An error occurred while executing activity: id=268437187, classname=com.appian.ps.plugins.sftpsmartservices.ReceiveFileOverSFTP
com.appiancorp.suiteapi.process.exceptions.SmartServiceException: userMsg[error.sftp_conn=Error establishing SFTP connection. Confirm your hostname, username and password. See application server log for more details. Error Message: Auth fail]
at com.appiancorp.suiteapi.process.exceptions.SmartServiceException$Builder.build(SmartServiceException.java:145)
        at com.appian.ps.plugins.sftpsmartservices.ReceiveFileOverSFTP.createException(ReceiveFileOverSFTP.java:209)
        at com.appian.ps.plugins.sftpsmartservices.ReceiveFileOverSFTP.run(ReceiveFileOverSFTP.java:72)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.lambda$call$0(DefaultActivityExecutor.java:131)
        at com.appiancorp.plugins.PluginUsageLogger.runWithPluginInformation(PluginUsageLogger.java:52)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:131)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor$1.call(DefaultActivityExecutor.java:125)
        at com.appiancorp.common.ContextClassLoaderSwitcher.runInContext(ContextClassLoaderSwitcher.java:27)
        at com.appiancorp.process.runtime.framework.DefaultActivityExecutor.execute(DefaultActivityExecutor.java:125)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute(UnattendedJavaActivityRequest.java:88)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequestResponseCreator.getJavaActivityResultResponse(UnattendedJavaActivityRequestResponseCreator.java:21)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequest.getJavaActivityResultResponse(UnattendedJavaActivityRequest.java:67)
        at com.appiancorp.process.engine.UnattendedJavaActivityRequest.execute0(UnattendedJavaActivityRequest.java:55)
        at com.appiancorp.common.persistence.data.AppianDataUserContextProvider.executeWithConsistentDataReads(AppianDataUserContextProvider.java:116)
        at com.appiancorp.process.engine.ProcessContinuationRequest.executeOuter(ProcessContinuationRequest.java:68)
        at com.appiancorp.process.engine.ContinuationRequest.execute(ContinuationRequest.java:123)
        at com.appiancorp.process.workpoller.UnattendedRequestHandlerBean.onMessage(UnattendedRequestHandlerBean.java:36)
        at com.appiancorp.process.workpoller.WorkItem.run(WorkItem.java:94)
        at org.springframework.jca.work.SimpleTaskWorkManager$DelegatingWorkAdapter.run(SimpleTaskWorkManager.java:239)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: com.jcraft.jsch.JSchException: Auth fail
        at com.jcraft.jsch.Session.connect(Session.java:519)
        at com.jcraft.jsch.Session.connect(Session.java:183)
        at com.appian.ps.plugins.sftpsmartservices.SFTPConfig.connect(SFTPConfig.java:177)
        at com.appian.ps.plugins.sftpsmartservices.ReceiveFileOverSFTP.run(ReceiveFileOverSFTP.java:69)
        ... 19 more

  • in reply to Arpit Pipersaniya

    The status will have either - FAILED, SUCCESS

    Error-Will have value only if some exceptions  occur in code, will have the corresponding exception message as text

  • in reply to Arpit Pipersaniya

    Hi Arpit,

    We have made some additional enhancements and features after 1.6.2. Therefore the older nodes have been deprecated in previous versions themselves.Please upgrade the nodes to a newer version

  • Hi Team,

    Recently upgraded version of this plug-in from 1.6.2 to 2.2.1
    I noticed the existing '    Send File Over SFTP' node started failing after upgrading the version to 2.2.1. Would I need to replace this node with a new node having output parameters?
    Or would deprecated nodes continue to work fine with the 2.2.1 version?

    Thank you!

  • in reply to Appian AppMarket


    Hi,

    What all possible values are being returned by output parameters 'Error' and 'Status'?
    I found datatype for both these parameters is TEXT. So it will be helpful if you can enlist all possible values returned by these 2 output parameters.

    Thank you!

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