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
Parents

  • Hi Team, 

     We  received an error while receiving file over SFTP, It is mentioned as Auth fail, though we are using correct credentials for connecting the SFTP, The files were not moving inside, Later we resumed the process instance, it worked. the process will run via MNI node. Can you please help with this issue?

Comment

  • Hi Team, 

     We  received an error while receiving file over SFTP, It is mentioned as Auth fail, though we are using correct credentials for connecting the SFTP, The files were not moving inside, Later we resumed the process instance, it worked. the process will run via MNI node. Can you please help with this issue?

Children
  • 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

  • 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 baghavathit0001

    Hi ,

    We tried the receive file over SFTP Smart service in an MNI Node with username/password configuration,we were able to successfully receive the files in Appian. Please Check on the infrastructure side for any issues .If issue still exists please share us with a sandbox sftp environment to reproduce the issue.

  • in reply to baghavathit0001

    HI, baghavathit0001,

    We will try to reproduce the issue and update asap.Can you help us with the log files on the occurrence of this issue

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