@ScruffR @RWB thank your for your replies. It really sounds an interesting technology, but however the use of Particle.Publish() together with a Webhook does not solve my problem.
Please let me explain:
1.) The Particle.Publish() solves the timestamp issue when there would be a connection problem between the Electron and the Particle Cloud --> Good
2.) The Webhook is in this case the point of failure: If there is a problem with the amazon system (load balancer problem, EC2 instance problem, or just a plain network failure between AWS and the Particle Cloud), the the Webhook will not be triggered and the value (together with it’s timestamp) will not be stored in the AWS system.
So the total solution comes back to the same, there is a level where we can loose data.
Either I need to be able to push data directly to AWS in some way (or another provider), or Particle Cloud must foresee in data storage, triggering, alarming by SMS and push messages. Or the Particle cloud should have some sort of que system that only gets emptied when the messages are really processed by another system. But this is not the case (so for).
If anybody has any ideas, it would be nice to hear from them