Basic backend

[michaelKurowski]

Overview

• Handling authorization from this ticket: https://github.com/michaelKurowski/visual-knowledge-database/issues/8
• Dynamically feeding frontend with the knowledge graph Backend should send 2-levels of descendants from the node requested.

Endpoints

Nodes requesting

• Request node's descendants: Sends 2 layers of descendants from requested node The frontend may provide a list of nodes that it already has and doesn't need to load.
• Request node's ancestors Sends 2 ancestors of the node, and 2 layers of descendants from them. The frontend may provide a list of nodes that it already has and doesn't need to load.
• Request tree root Sends the main tree node and 2 layers of descendants

  Editing

• Edit node The frontend sends new data for certain nodes. As a result:
  • The change might be added to a queue of actions awaiting moderator's acceptance
  • If user has certain privileges the change might be accepted immediately.
• Delete node The frontend sends new data for certain nodes. As a result:
  • The change might be added to a queue of actions awaiting moderator's acceptance
  • If the user has certain privileges the change might be accepted immediately.

[michaelKurowski]

Suggested tech stack: NodeJS, express (for routing).