All the implementation based on the REST API was just a first approach, and it’s not the best solution architecture due to the limitations in storage in Thingspeak. Also, REST Api works great if you need a response when the message is Sent in POST or GET. And finally, the solution is not real-time.
All the implementation (included Salesforce + Python scripts) is published in a different branch in Github if you want to check it out.
MQTT is an OASIS…