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Top Forums Programming NodeMCU ESP8266 Blynk SSL Application for Linux Server Load Averages Post 303043605 by Neo on Saturday 1st of February 2020 11:18:45 PM
Old 02-02-2020
After looking into this, I found some promising iPhone apps which do not share your data with third parties and will test the mosquitto broker to set up a private pub/sub network to send and receive messages to and from these ESP8266 and ESP32 devices.

Quote:
Eclipse Mosquitto is an open source (EPL/EDL licensed) message broker that implements the MQTT protocol versions 5.0, 3.1.1 and 3.1. Mosquitto is lightweight and is suitable for use on all devices from low power single board computers to full servers.

The MQTT protocol provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for Internet of Things messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers.

The Mosquitto project also provides a C library for implementing MQTT clients, and the very popular mosquitto_pub and mosquitto_sub command line MQTT clients.
I have already set up a mosquitto broker on Ubuntu, the basic security authentication and can send a message from my ESP32 device to the remote Linux server. Will discuss this in another post.
 

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STOMP_CONNECT(3)							 1							  STOMP_CONNECT(3)

Stomp::__construct - Opens a connection

       Object oriented style (constructor):

SYNOPSIS
public Stomp::__construct ([string $broker = ini_get("stomp.default_broker_uri")], [string $username], [string $password], [array $headers]) DESCRIPTION
Procedural style: resource stomp_connect ([string $broker = ini_get("stomp.default_broker_uri")], [string $username], [string $password], [array $head- ers]) Opens a connection to a stomp compliant Message Broker. PARAMETERS
o $broker - The broker URI o $username - The username. o $password - The password. o $headers -Associative array containing the additional headers (example: receipt). RETURN VALUES
Note A transaction header may be specified, indicating that the message acknowledgment should be part of the named transaction. CHANGELOG
+--------+-----------------------------------+ |Version | | | | | | | Description | | | | +--------+-----------------------------------+ | 1.0.1 | | | | | | | The $headers parameter was added | | | | +--------+-----------------------------------+ EXAMPLES
Example #1 Object oriented style <?php /* connection */ try { $stomp = new Stomp('tcp://localhost:61613'); } catch(StompException $e) { die('Connection failed: ' . $e->getMessage()); } /* close connection */ unset($stomp); ?> Example #2 Procedural style <?php /* connection */ $link = stomp_connect('ssl://localhost:61612'); /* check connection */ if (!$link) { die('Connection failed: ' . stomp_connect_error()); } /* close connection */ stomp_close($link); ?> PHP Documentation Group STOMP_CONNECT(3)
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