Django 与 DRF allowed_methods 源码笔记

allowed_methods

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class APIView(View):
  ...
    @property
    def allowed_methods(self):
        """
        Wrap Django's private `_allowed_methods` interface in a public property.
        """
        return self._allowed_methods()

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    def _allowed_methods(self):
        return [m.upper() for m in self.http_method_names if hasattr(self, m)]

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class View:
    """
    Intentionally simple parent class for all views. Only implements
    dispatch-by-method and simple sanity checking.
    """

    http_method_names = [
        "get",
        "post",
        "put",
        "patch",
        "delete",
        "head",
        "options",
        "trace",
    ]