Swift

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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Swift


func chilkatTest() {
    var success: Bool = 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).

    let email = CkoEmail()!
    email.subject = "Attach from BinData"
    email.body = "Please see the attached file."

    //  Load a file into a BinData object, then attach it.
    let bd = CkoBinData()!
    success = bd.loadFile(path: "qa_data/attachments/report.pdf")
    if success == false {
        print("\(bd.lastErrorText!)")
        return
    }

    success = email.addAttachmentBd(filename: "report.pdf", binData: bd, contentType: "application/pdf")
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }

    print("NumAttachments = \(email.numAttachments.intValue)")

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

}