How to control the JSON formatter with the API and send it to the application server in hexadecimal using MQTT communication

Application Development MQTT
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1

I’m currently investigating whether this is possible using TTN.
I’m looking into the following two points:

  1. Is it possible to send data to an application server in hexadecimal format using MQTT communication from TTN without using the JSON formatter?

  2. Is it possible to control the JSON formatter via API?

If possible, I’d appreciate it if you could also provide me with a useful URL.

Thank you for your confirmation.

2
  1. No.
  2. No.

What is possible is documented at [https://www.thethingsindustries.com/docs/](https://www.thethingsindustries.com/docs/)

3

Hi kersing.

Thank you for your reply.
In my previous question, I used the term “JSON Formatter” interchangeably with “Payload Formatter.”

Based on the above, I would like to ask again.

  1. In addition to sending data converted by Payload Formatter from TTN to the application server via MQTT, is it possible to send data to the application server via MQTT without converting it using Payload Formatter?

  2. Is it possible to control Payload Formatter via API?
    If so, what functions can be used?

Also, if you have any URLs that can help with the above two points, I would appreciate it if you could let me know.

Best Regards.

4
  1. Yes, but YOU will HAVE to encode the payload in Base64
  2. What do you mean by “control”? If you mean add, edit or delete, yes.

The docs for the LNS were supplied - this is the official information - any other URLs could be wrong or out of date - for #1, there are worked examples in the docs.