Method visit

examples/server/server.py:330–354

(node: Any)

    def resolve_refs(self, schema: Dict[str, Any], url: str) -> Dict[str, Any]:
        def visit(node: Any) -> Any:
            if isinstance(node, list):
                return [visit(child) for child in node]
            if isinstance(node, dict):
                ref = node.get("$ref")
                if ref is not None and ref not in self._refs:
                    if ref.startswith("https://"):
                        raise ValueError("remote schema fetch is not allowed")
                    elif ref.startswith("#/"):
                        target = schema
                        ref = f"{url}{ref}"
                        node["$ref"] = ref
                    else:
                        raise ValueError(f"Unsupported ref {ref}")

                    for selector in ref.split("#")[-1].split("/")[1:]:
                        assert target is not None and selector in target, (
                            f"Error resolving ref {ref}: {selector} not in {target}"
                        )
                        target = target[selector]
                    self._refs[ref] = target
                else:
                    for value in node.values():
                        visit(value)
            return node

        return cast(Dict[str, Any], visit(schema))