v0.1 fastapi: route + model + orm

router/features/validation.py

@@ -0,0 +1,133 @@
+import fastapi
+from fastapi import APIRouter,Query,Path,HTTPException
+from pydantic import Field,BaseModel,field_validator,model_validator
+from typing import Annotated,Union,Optional
+
+
+route = APIRouter(prefix="/validations",tags=["validations"])
+
+@route.get("/annotated_query")
+async def get(option: Annotated[str|None, Query(max_length=10)] = None):
+    return option
+
+@route.get("/annotated_query_lst")
+async def get(option: Annotated[list[str], Query()] = None):
+    return option
+
+
+@route.get("/annotated_query_re")
+async def get(option: Annotated[str|None, Query(min_length=2,max_length=10,pattern="^g.*k$")] = None):
+    return option
+
+
+@route.get("/annotated_path/{option}")
+async def get(option: Annotated[str|None, Path(max_length=10)]):
+    return option
+
+
+@route.get("/query")
+async def get(option: str = Query(min_length=2, max_length=10)):
+    return option
+
+@route.get("/params_validate")
+async def params_validate(name:Union[str,None], # default
+                 id: Optional[int]):
+    pass
+
+
+# @route.get("/field")
+# async def get(option: str = Field(min_length=2, max_length=10)):
+#     return option
+
+class Clazz(BaseModel):
+    name: str = Field(min_length=2,max_length=12)
+
+@route.get("/field")
+async def get(clazz: Clazz):
+    return clazz
+
+@route.get("/field_body")
+async def get(clazz: Clazz = fastapi.Body()):
+    return clazz
+
+
+@route.get("/path_path/{option}")
+async def get(option: str = Path(min_length=2, max_length=10)):
+    return option
+#
+# @route.get("/path_query/{option}")
+# async def get(option: str = Query(min_length=2, max_length=10)):
+#     return option
+
+# param not got!
+@route.get("/path_bad")
+async def get(option: str = Path(min_length=2, max_length=10)):
+    return option
+
+
+@route.get("/items/")
+async def read_items(q: str|None = Query(default=None, max_length=50)):
+    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
+    if q:
+        results.update({"q": q})
+    return results
+
+@route.get("/items_default_bad/")
+async def read_items(q: str = Query(default=None, max_length=50)):
+    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
+    if q:
+        results.update({"q": q})
+    return results
+
+
+# field/model_validator
+
+class User(BaseModel):
+    name: str
+    passwd: str
+
+    # @field_validator("passwd")
+    # def check_passwd(cls,passwd,values): #
+    #     # print(f'{values=}') # values=ValidationInfo(config={'title': 'User'}, context=None, data={'name': 'string'}, field_name='passwd')
+    #     # 无法cannot access passwd/ name ?!
+    #     # print(f'{values["passwd"]=}')
+    #     # print(f'{values["name"]=}')
+    #     if passwd == '001':
+    #         raise HTTPException(status_code=408,detail="001 only root can set!")
+    #     return passwd
+
+    @model_validator(mode="before")
+    def check_model_before(cls, data): #
+        print('model_validator before............')
+        return data
+
+    @field_validator("passwd","name")
+    def check_field(cls,value,values): #
+        # print(f'{values=}') # values=ValidationInfo(config={'title': 'User'}, context=None, data={'name': 'string'}, field_name='passwd')
+        # cannot access passwd/ name ?!
+        # print(f'{values["passwd"]=}')
+        # print(f'{values["name"]=}')
+        print('field_validator............')
+        if value == '001':
+            raise HTTPException(status_code=408,detail="001 only root can set!")
+        if value == 'root':
+            raise HTTPException(status_code=408,detail="only root can set name!")
+        return value
+
+    @model_validator(mode="after")
+    def check_model_after(self): #
+        print('model_validator............')
+        if self.passwd == '001':
+            raise HTTPException(status_code=408,detail="model : 001 only root can set!")
+        if self.name == 'root':
+            raise HTTPException(status_code=408,detail="model : only root can set name!")
+        return self
+
+
+# u = User(age="20", name="geeker")
+
+
+@route.post("/registe")
+def registe(user: User):
+    return user
+