Telegraf MQTT

I want to subscribe over MQTT to my application/device using Telegraf. So far I found info on how to set-up MQTT in Telegraf and was able to get is working with my own mosquitto server. But when I want to configure it for TTN I am lost and do not find any info on how to match “topic” and “client_ID” in the Telegraf config with the settings in TTN being device EUI, Application EUI, Device Address, Netwerk Session Key and App Session Key. (Note: I am using ABP as activation method due to IoT Lora library ‘restrictions’). Can anyone tell me how it matches or where to find this information? Thx a lot in advance

Have you checked the TTN documentation?

Thx. Found it there what is what and the apperently ‘fixed’ topic +/devices/+up.