Thanks! That is exactly what I was looking for

I just recently started running my own full node based on bitcoin core (https://github.com/bitcoin/bitcoin) which worked fine and I was apple to use HTTP post requests to communicate with the RPC endpoint. However I came across btcd (https://github.com/btcsuite/btcd) which is a full node written in Golang that supports websockets to push updates as soon as a new block is added for example. Are websockets supported in the bitcoin core version similar to the btcd version or how might I achieve the same thing?

I tried btcd but it is not as reliable at the moment and it is also slower than bitcoin core which will probably keep me from using it in production.