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f8ce94e9bb
* correct suscriber interface validator + refactore token error handling Signed-off-by: tzzed <zerouali.t@gmail.com> * apply review suggestion Signed-off-by: tzzed <zerouali.t@gmail.com> Co-authored-by: Dušan Borovčanin <dusan.borovcanin@mainflux.com>
42 lines
721 B
Go
42 lines
721 B
Go
// Copyright (c) Mainflux
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// SPDX-License-Identifier: Apache-2.0
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package mqtt
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import (
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"errors"
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"time"
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mqtt "github.com/eclipse/paho.mqtt.golang"
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)
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const (
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protocol = "mqtt"
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username = "mainflux-mqtt"
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qos = 2
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)
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var errConnect = errors.New("failed to connect to MQTT broker")
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func newClient(address string, timeout time.Duration) (mqtt.Client, error) {
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opts := mqtt.NewClientOptions().
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SetUsername(username).
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AddBroker(address)
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client := mqtt.NewClient(opts)
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token := client.Connect()
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if token.Error() != nil {
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return nil, token.Error()
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}
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ok := token.WaitTimeout(timeout)
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if !ok {
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return nil, errConnect
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}
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if token.Error() != nil {
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return nil, token.Error()
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}
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return client, nil
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}
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