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Go

Check for IMAP IDLE Mailbox Updates

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Demonstrates the Chilkat Imap.IdleCheck method, which waits for mailbox updates after IdleStart has entered IDLE mode. The only argument is a timeout in milliseconds; 0 performs a non-blocking poll of notifications already received. This example waits up to 30 seconds.

Background: IdleCheck consumes the notifications already waiting on the connection rather than sending a new polling command. A typical monitoring loop repeatedly calls IdleCheck with a timeout and reacts when updates arrive. Because servers usually drop an idle connection after about 29 minutes, long-lived monitors periodically call IdleDone and then IdleStart again to refresh it.

Chilkat Go Downloads

Go
    success := false

    //  Demonstrates the Imap.IdleCheck method, which waits for IMAP IDLE mailbox updates and returns
    //  them.  The only argument is a timeout in milliseconds.  Use 0 for a non-blocking poll.

    imap := chilkat.NewImap()

    imap.SetSsl(true)
    imap.SetPort(993)

    success = imap.Connect("imap.example.com")
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    success = imap.Login("user@example.com","myPassword")
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    success = imap.SelectMailbox("Inbox")
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    success = imap.IdleStart()
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    //  Wait up to 30 seconds for mailbox updates.  IdleCheck returns a string, so assign it to a
    //  string variable and check for success.
    timeoutMs := 30000
    updates := imap.IdleCheck(timeoutMs)
    if imap.LastMethodSuccess() == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    fmt.Println(*updates)

    success = imap.IdleDone()
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    success = imap.Disconnect()
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }


    imap.DisposeImap()