Tutorials
TypeScript Generics for Typed Nodes and Edges in React Flow
Model domain-specific node data and edge metadata with discriminated unions so your graph stays type-safe end to end.
2025-04-169 min readReact Flow, TypeScript, DX
Define Node<DataUnion> and Edge<Meta> generics once, then narrow inside custom components with type guards. This reduces runtime errors in production graphs where bad data would otherwise corrupt execution.
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