Swift

Save a Single Email Attachment to Disk

Demonstrates the Chilkat Email.SaveAttachedFile method, which saves the attachment at a given zero-based index to a directory. If the directory or any of its components do not exist, Chilkat creates them. This example adds an attachment and saves it.

Background: Where SaveAllAttachments writes every attachment at once, SaveAttachedFile saves just one by index — useful when you have inspected the attachments (by type, name, or size) and want to extract only a specific file. The attachment keeps its own filename; the same filename-safety considerations apply as when saving all of them.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the SaveAttachedFile method, which saves the attachment at a given
    //  zero-based index to a directory.  If the directory (or any of its components) does not
    //  exist, Chilkat creates it.

    let email = CkoEmail()!
    email.subject = "Save one attachment"

    email.addStringAttachment(fileName: "report.txt", str: "Attachment content.")

    //  Save the attachment at index 0 into the specified directory.
    success = email.saveAttachedFile(index: 0, directory: "qa_output/attachments")
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }

    print("Saved attachment 0.")

    //  Note: The path "qa_output/..." is a relative local filesystem path,
    //  relative to the current working directory of the running application.

}