We need to make sure Query Service GUI works with Blazegraph and newly created QLever API, therefore we need to modify the code to make it work with both, configurable.
- Add a new config key for Blazegraph-QLever switch
A/C
- A new key is introduced inside default-config.json, which indicates if the backend is Blazegraph or QLever
- New key is deployed correctly to the existing URLs