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Self-referencing tree node

GET 
/tree-node

A tree node whose children array references itself. The simplest circular reference pattern.

Schema:

TreeNode:
  type: object
  properties:
    id:
      type: integer
    label:
      type: string
    children:
      type: array
      items:
        $ref: "#/components/schemas/TreeNode"

Responses​

A tree node