Lua

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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Lua

local chilkat = require("chilkat")

-- 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.

local email = chilkat.Email.new()
email.subject = "Save one attachment"

email:add_string_attachment("report.txt", "Attachment content.")

-- Save the attachment at index 0 into the specified directory.
local success = email:save_attached_file(0, "qa_output/attachments")
if not success then
    print(email.last_error_text)
    return
end

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.