Ruby

Add an Attachment from a BinData Object

Demonstrates the Chilkat Email.AddAttachmentBd method, which adds an attachment using the contents of a BinData object. The first argument is the attachment filename, the second is the BinData, and the third is the content type — if empty, it is inferred from the filename extension. This example loads a PDF into a BinData and attaches it.

Background: BinData is Chilkat's container for raw binary data. Attaching from a BinData is the right approach when the file's bytes are already in memory — generated on the fly, downloaded, or read from a database — rather than sitting on disk (which would use AddFileAttachment). Chilkat Base64-encodes the bytes into the message automatically.

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Ruby

require 'chilkat'

success = false

#  Demonstrates the AddAttachmentBd method, which adds an attachment using the contents of a
#  BinData object.  The first argument is the attachment filename, the second is the BinData
#  object, and the third is the content type (inferred from the filename extension if empty).

email = Chilkat::CkEmail.new()
email.put_Subject("Attach from BinData")
email.put_Body("Please see the attached file.")

#  Load a file into a BinData object, then attach it.
bd = Chilkat::CkBinData.new()
success = bd.LoadFile("qa_data/attachments/report.pdf")
if (success == false)
    print bd.lastErrorText() + "\n";
    exit
end

success = email.AddAttachmentBd("report.pdf",bd,"application/pdf")
if (success == false)
    print email.lastErrorText() + "\n";
    exit
end

print "NumAttachments = " + email.get_NumAttachments().to_s() + "\n";

#  Note: The path "qa_data/attachments/report.pdf" is a relative local filesystem path,
#  relative to the current working directory of the running application.