Altova FlowForce Server 2023 Advanced Edition

Uploads files from a local directory to an FTP server if the files match a wildcard (e.g., *.xml). If execution is successful, the function returns a list of uploaded files (absolute local paths) or an empty list if no match has been found. If execution fails, the outcome depends on the Abort on error parameter (see below).






FTP Server


Mandatory parameter. Address of a remote FTP server, as a URL or IP address.



Optional parameter. The port number used to connect to the FTP server. The default value is 21.

Directory on host


Optional parameter. The name of a directory on the remote FTP server, to which you want to upload files that match a particular wildcard.

Login credentials


Optional parameter. The username and password of the FTP account. For details, see Credentials. Skip this parameter if the FTP server does not require credentials.

Use passive mode


Optional parameter. Use the passive mode if connection problems occur (e.g., if routers or firewalls are set up to prevent active connections). The default value is true.

Use SSL/TLS encryption


Optional parameter. The default value is No. To transfer information, FTP uses a command channel and a data channel. If you would like to transfer FTP data without encryption, leave the default value. Otherwise, set this value to one of the following:


Explicit with encrypted command channel

Explicit with encrypted command and data channel


If you set any of the two options above, the validation of the server certificate will depend on the value of the Verify server certificate parameter. Implicit encryption is deprecated and not supported in FlowForce.

Verify server certificate


Optional parameter. Specifies how FlowForce should verify the FTP server's certificate. The following options are available:


No verification: Accepts any FTP server certificate.

Verify against system certificate store (default value): On Windows, FlowForce Server uses the certificate store of the user account running the job and the system store to verify the certificate signature. On Linux, FlowForce Server uses the system certificate store, usually located in /usr/lib/ssl/cert.pem and /usr/lib/ssl/certs, or the path to which the SSL_CERT_FILE and SSL_CERT_DIR environment variables point.

Verify against selected server certificate: FlowForce compares the FTP server's certificate with the one specified in the Server Certificate parameter.


This parameter requires a server certificate and a secure connection. If a secure connection cannot be established, the FTP function will fail.

Server certificate


Optional parameter. Specifies the path to a FlowForce certificate. If you select Verify against selected server certificate in the Verify server certificate parameter, the FlowForce certificate will be verified against the FTP server certificate. If you select No verification or Verify against system certificate store in the Verify server certificate parameter, the Server certificate parameter value will be ignored.



Optional parameter. Specifies a wildcard, for example, *.xml. Any local files matching the wildcard will be uploaded to the FTP server. See also Wildcards in FTP functions.


If you use a relative path, it will be resolved against the path specified in the Working directory parameter. If you use the absolute path, the path in Working directory will be ignored.

Abort on error


Optional parameter. This parameter determines the outcome of a job in which an error has occurred. If the Abort on error parameter is true, job execution will be terminated. If the Abort on error parameter is false, FlowForce Server will ignore errors and continue job execution. The default value is true.


Note that some files may still be uploaded even if execution fails.

Working directory


Mandatory parameter. The local working directory from which files matching the wildcard will be uploaded to the FTP server.



Optional parameter. The FTP account name of the user that has access to the files on the remote server.


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