Check if file or folder exists on FTP server

The “Check if file/folder exists on FTP server” service task verifies whether a specific file or folder is present on an FTP server. Use it to ensure that a target directory exists before starting additional operations such as uploads or downloads.

Input parameters

Provide the following fields as task input:

{
  "FTPAccess": {
    "host": "ftp.example.com",
    "user": "username",
    "password": "password"
  },
  "pathToCheck": "/folder/file.txt"
}

Explanation:

• FTPAccess: Credentials for the FTP server (host, username, and password).
• pathToCheck: Full path to the file or folder you want to verify.

Output

The task returns whether the specified path exists on the FTP server:

{
  "status": 200,
  "path": "/folder/file.txt",
  "exists": true
}

Explanation:

• status: HTTP-like status code; 200 indicates a successful check.
• path: The path that was verified.
• exists: Indicates whether the path exists (true) or not (false).

JSONata examples

• Set path dynamically:

jsonata { "FTPAccess": { "host": "ftp.example.com", "user": "username", "password": "password" }, "pathToCheck": "concat('/invoices/', $customer_id, '.pdf')" }

• Check whether a folder exists:

jsonata { "FTPAccess": { "host": "ftp.example.com", "user": "username", "password": "password" }, "pathToCheck": "/backup" }

Notes

• The task can check both files and folders.
• Provide the full path, e.g., /folder/file.txt.
• If the path does not exist, exists will be false.

Tip

Use the output in subsequent process steps to branch actions based on the path’s existence – for example, upload files or process existing documents.