Lua

Set a MIME Body from a File

Demonstrates the Chilkat Mime.SetBodyFromFile method, which reads a local file and sets it as the body, choosing content headers from the filename extension. The only argument is the file path.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the one-call way to turn a file into a MIME part: Chilkat reads the bytes and infers the Content-Type and transfer encoding from the extension — .jpg becomes image/jpeg with base64, .txt a text type, and so on. It is the natural building block for adding an attachment, usually followed by setting a Content-Disposition and filename.

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Lua

local chilkat = require("chilkat")

-- Demonstrates the Mime.SetBodyFromFile method, which reads a local file and sets it as the body,
-- choosing content headers based on the filename extension.  The only argument is the file path.

local mime = chilkat.Mime.new()

-- The Content-Type and encoding are set from the ".jpg" extension (image/jpeg, base64).
local success = mime:set_body_from_file("qa_data/photo.jpg")
if not success then
    print(mime.last_error_text)
    return
end

print("Content-Type: " .. mime.content_type)
print("Encoding: " .. mime.encoding)