Implement use of UUID prepended to function signature to ensure that each registered flask route can be associated with its function declaration

Author: Seth Teichman

Diff for: flask_parameter_validation/docs_blueprint.py

@@ -34,7 +34,7 @@ def get_function_docs(func):
     """
     fn_list = ValidateParameters().get_fn_list()
     for fsig, fdocs in fn_list.items():
-        if fsig.endswith(func.__name__):
+        if hasattr(func, "__fpv_discriminated_sig__") and func.__fpv_discriminated_sig__ == fsig:
             return {
                 "docstring": format_docstring(fdocs.get("docstring")),
                 "decorators": fdocs.get("decorators"),

Diff for: flask_parameter_validation/parameter_validation.py

@@ -2,6 +2,7 @@
 import functools
 import inspect
 import re
+import uuid
 from inspect import signature
 from flask import request, Response
 from werkzeug.datastructures import ImmutableMultiDict
@@ -28,6 +29,11 @@ def __call__(self, f):
         Parent flow for validating each required parameter
         """
         fsig = f.__module__ + "." + f.__name__
+        # Add a discriminator to the function signature, store it in the properties of the function
+        # This is used in documentation generation to associate the info gathered from inspecting the
+        # function with the properties passed to the ValidateParameters decorator
+        f.__fpv_discriminated_sig__ = f"{uuid.uuid4()}_{fsig}"
+        fsig = f.__fpv_discriminated_sig__
         argspec = inspect.getfullargspec(f)
         source = inspect.getsource(f)
         index = source.find("def ")