Lua

Create a multipart/mixed MIME Entity

Demonstrates the Chilkat Mime.NewMultipartMixed method, which initializes the object as an empty multipart/mixed entity, clearing any existing content. It takes no arguments; child parts are then appended.

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: multipart/mixed is the container for independent parts shown one after another — the classic "message body plus attachments" layout. Each child is its own distinct content, unlike multipart/alternative (competing renderings of the same thing) or multipart/related (a part and its embedded resources). Start here, then AppendPart a body and AppendPartFromFile the attachments.

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Lua

local chilkat = require("chilkat")

-- Demonstrates the Mime.NewMultipartMixed method, which initializes the object as an empty
-- multipart/mixed entity, clearing any existing headers, body, and child parts.  It takes no
-- arguments.

local mime = chilkat.Mime.new()

local success = mime:new_multipart_mixed()
if not success then
    print(mime.last_error_text)
    return
end

-- Append child parts.  multipart/mixed is the container for a message body plus attachments.
local bodyPart = chilkat.Mime.new()
success = bodyPart:set_body_from_plain_text("See the attached report.")
if not success then
    print(bodyPart.last_error_text)
    return
end

success = mime:append_part(bodyPart)
if not success then
    print(mime.last_error_text)
    return
end

success = mime:append_part_from_file("qa_data/report.pdf")
if not success then
    print(mime.last_error_text)
    return
end

print("Number of parts: " .. mime.num_parts)