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by Mingyu
01:47
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app.decorators.validation.validate_with_pydantic()   A

↳ Parent: app.decorators.validation

Complexity

Conditions 2

Size

Total Lines 13
Code Lines 12

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 12
dl 0
loc 13
rs 9.8
c 0
b 0
f 0
cc 2
nop 2
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from enum import Enum
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from functools import wraps
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from typing import Type
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from flask import abort, request

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from pydantic import BaseModel

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from pydantic.error_wrappers import ValidationError

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from app.context import context_property

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class PayloadLocation(Enum):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    ARGS = 'args'

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    JSON = 'json'

            


            
                                                                                                            
                            
            
                                    
            
            

                
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def validate_with_pydantic(payload_location: PayloadLocation, model: Type[BaseModel]):

            


            
                                                        
            
                                    
            
            

                
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    def decorator(fn):

            


            
                                                        
            
                                    
            
            

                
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        @wraps(fn)

            


            
                                                        
            
                                    
            
            

                
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        def wrapper(*args, **kwargs):

            


            
                                                        
            
                                    
            
            

                
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            try:

            


            
                                                        
            
                                    
            
            

                
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                instance = model(**getattr(request, payload_location.value))

            


            
                                                        
            
                                    
            
            

                
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                context_property.request_payload = instance

            


            
                                                        
            
                                    
            
            

                
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                return fn(*args, **kwargs)

            


            
                                                        
            
                                    
            
            

                
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            except ValidationError as e:

            


            
                                                        
            
                                    
            
            

                
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                abort(400, e.json())

            


            
                                                        
            
                                    
            
            

                
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        return wrapper

            


            
                                                        
            
                                    
            
            

                
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    return decorator

            


            
                                                        
            
                                    
            
            

                
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