For the moment, you need to download the latest snapshot of the Ariadne jar
You need to use the development version of Spyder currently; even the latest Spyder 4.0.0 beta does not seem expose LSP support.
Clone the development stream of Spyder: git clone
https://github.com/spyder-ide/spyder
Run development Spyder: python3 bootstrap.py
In Spyder, find Preferences -> Language Server Protocol Manager-> Setup a new server
Add a server for Python that invokes the Ariadne jar:
Python
localhost:<port>
<JAVA_HOME>/bin.java -jar <ariadne jar> --mode server --port <port>