Lua

Get an Email's MIME into a BinData

Demonstrates the Chilkat Email.GetMimeBd method, which serializes the complete RFC822/MIME message (headers, body representations, related items, and attachments) and appends the bytes to a BinData object. This example builds a message, serializes it to a BinData, and prints the byte count.

Background: A BinData holds raw bytes, which is the right container when you want the MIME as binary rather than text — for example to write it directly to a file or socket, hash it, or hand it to another API that expects a byte buffer. It is the binary counterpart to GetMime (string) and GetMimeSb (StringBuilder).

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Lua

local chilkat = require("chilkat")

-- Demonstrates the GetMimeBd method, which serializes the complete RFC822/MIME message
-- (headers, bodies, related items, and attachments) and appends the bytes to a BinData
-- object.

local email = chilkat.Email.new()
email.subject = "GetMimeBd example"
email.from = "alice@example.com"
email:add_to("Bob", "bob@example.com")
email.body = "Hello!"

-- Append the complete MIME to a BinData object.
local bdMime = chilkat.BinData.new()
local success = email:get_mime_bd(bdMime)
if not success then
    print(email.last_error_text)
    return
end

print("MIME size (bytes) = " .. bdMime.num_bytes)