Create a multipart/mixed MIME Entity

See more MIME Examples

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.

Chilkat Go Downloads

Download Chilkat for Go

    success := false

    //  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.

    mime := chilkat.NewMime()

    success = mime.NewMultipartMixed()
    if success == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        return
    }

    //  Append child parts.  multipart/mixed is the container for a message body plus attachments.
    bodyPart := chilkat.NewMime()
    success = bodyPart.SetBodyFromPlainText("See the attached report.")
    if success == false {
        fmt.Println(bodyPart.LastErrorText())
        mime.DisposeMime()
        bodyPart.DisposeMime()
        return
    }

    success = mime.AppendPart(bodyPart)
    if success == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        bodyPart.DisposeMime()
        return
    }

    success = mime.AppendPartFromFile("qa_data/report.pdf")
    if success == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        bodyPart.DisposeMime()
        return
    }

    fmt.Println("Number of parts: ", mime.NumParts())

    mime.DisposeMime()
    bodyPart.DisposeMime()