Everything I did was according to best practices from React Flow documentation.

I used Typescript and types from React Flow everywhere and commented all parts of my code for best reading experience.

In this application, the main goal was to implement logic flow between nodes. Thus, you'll see how to:

• Add your own logic to onConnect() function
• Add validation using isValidConnection() function
• Pass state value using zustand

For nodes and edges you'll find an implementation of:

• custom addNode() function with different types
• duplicateNode() function
• deleteNode() function
• deleteEdge() function

Finally, you'll see how to implement Context Menus for nodes, edges, and canvas itself:

• custom ContextMenu component with dynamic types and actions for each type
• onNodeContextMenu(), onEdgeContextMenu(), and onPaneContextMenu() functions
• onPaneClick() function for automatically closing Context Menu

Clone repo:

git clone https://github.com/markushha/reactflow

Then, install packages

npm i
# or
yarn

Next, launch the development server

npm run dev
# or
yarn dev

Finally, open http://localhost:3000 with your browser to see the application