Get your API key from
https://www.iqair.com/dashboard/api and replace
<AIRVISUAL_API_KEY> in config. Restart Telegraf or his container.
Please, remember - API Key valid for one year! After that time you need to get new one and update configs!
Also, for sure update
urls by list of cities you need, and don’t forget to update dashboard queries related to your cities configuration.
Data source config
Upload an updated version of an exported dashboard.json file from Grafana