Downlink via API V3


We are tryinig to send a downlink via the TTN API V3.
We followed this Downlink message format (v3) - #3 by leo73745

  curl --location  \
  --header 'Authorization: NNSXS.MNKSXXXX' \
  --header 'Content-Type: application/json' \
  --header 'User-Agent: my-integration/my-integration-version' \
  --request POST \
  --data '{
    "downlinks": [{
      "frm_payload": "000000030000025800000000032002EE032002EE0000000000000000000000000000000001",
      "f_port": 1,
  }' \

But we have the following error:

{"code":16, "message":"error:pkg/rpcmetadata:unauthenticated (the context is not authenticated)",

Thanks for your help.


This is the error in my console (cf. screenshot


Please do not use screenshots when you can copy & paste the text - that image is impossibly small for ageing eyeballs that want to know what’s wrong with you looking at the key word in the error message - “unauthenticated” …