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ViewsFastApi get request shows validation error
I'm getting this error when I try to get some data from my postgre db and using fastapi.
I don't know why it happens...but here is my code, thank you for your help.
Route
@router.get("/fuentes", response_model=FuenteSerializer.MFuente) # <--- WHEN I REMOVE RESPONSE_MODEL WORKS AND RETURNS A JSON DATA DIRECTLY FROM MODEL I GUESS
async def read_fuentes(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
fuentes = FuenteSerializer.get_fuente(db, skip=skip, limit=limit)
return fuentes
sqlalchemy model
class MFuente(Base):
__tablename__ = 'M_fuentes'
idfuentes = Column(Integer, primary_key=True)
idproductos = Column(ForeignKey('M_productos.idproductos', ondelete='RESTRICT', onupdate='RESTRICT'), index=True)
autoapp = Column(CHAR(2))
rutFabricante = Column(String(12))
elemento = Column(String(100))
estado = Column(Integer)
stype = Column(Integer)
aql = Column(String(5))
equiv = Column(String(5))
division = Column(String(100))
nu = Column(Integer)
filexcel = Column(String(100))
M_producto = relationship('MProducto')
Serializer / schema
class MFuente(BaseModel):
idfuentes: int
autoapp: str
fecregistro: datetime.date
rutFabricante: str
elemento: str
estado: int
stype: int
aql: str
equiv: str
division: str
fileexel: str
productos: List[MProducto]
class Config:
orm_mode = True
def get_fuente(db: Session, skip: int = 0, limit: int = 100):
return db.query(Fuente).offset(skip).limit(limit).all()
·
Santiago Trujillo
1 answers
Answer question0
For a little debugging i created the same little prototype, and i found some possible answers.
First of all here is the app that i created:
class MFuente(BaseModel):
name: str
value: int
@app.get("/items/{name}", response_model=MFuente)
async def get_item(name: str):
query = fuente_db.select().where(fuente_db.c.name == name)
return await database.fetch_all(query)
So with this schema i get the same error
response -> name
field required (type=value_error.missing)
response -> value
field required (type=value_error.missing)
So i debugged a little bit more i found it's all about response_model, so i came up with this:
from typing import List
...
@app.get("/items/{name}", response_model=List[MFuente])
Everything started working:
INFO: 127.0.0.1:52872 - "GET /items/masteryoda HTTP/1.1" 200 OK
So in your case fix will be:
@router.get("/fuentes", response_model=List[FuenteSerializer.MFuente])
^^^^
·
Santiago Trujillo
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