I could successfully run the sample with following configurations. (sample data are given). Here I have used a Secured FTP server to do the configuration.
listener ftp:Listener dataFileListener = new({
protocol: ftp:SFTP,
host: "18.156.78.137",
port: 22,
secureSocket: {
basicAuth: {
username: "cloudloc",
password: "fsf#$#213"
}
},
path: "/clouddir/"
});
ftp:ClientEndpointConfig ftpConfig = {
protocol: ftp:SFTP,
host: "18.156.78.137",
port: 22,
secureSocket: {
basicAuth: {
username: "cloudloc",
password: "fsf#$#213"
}
}
};
Make sure you set the path parameter correctly in the dataFileListener. Without this parameter I could reproduce your attached error.
Once this is correctly configured you would get a log printed like follows.
2020-01-24 15:13:23,758 INFO [wso2/ftp] - Listening to remote server at 18.156.78.137...
2020-01-24 15:13:24,333 INFO [wso2/file_integration_using_ftp] - Added file path: /clouddir/a1.txt
2020-01-24 15:13:24,415 INFO [wso2/file_integration_using_ftp] - Added file: /clouddir/a1.txt - 12