🔒 Pydantic Error

[weary idol]

import fastapi
from typing import List, Optional, Dict, Annotated
from pydantic import BaseModel

app = fastapi.FastAPI()

class data_scheme:
    url: str
    


class RequestModel(BaseModel):
    iterate_through: List[data_scheme]

    


@app.get("/send-requests")
def get_request(request_model : RequestModel):
    return {"message": "Hello, World!"}

Whats wrong with this code?

It keeps giving this error.

pydantic.errors.PydanticSchemaGenerationError: Unable to generate pydantic-core schema for <class '__main__.data_scheme'>. Set `arbitrary_types_allowed=True` in the model_config to ignore this error or implement `__get_pydantic_core_schema__` on your type to fully support it.

If you got this error by calling handler(<some type>) within `__get_pydantic_core_schema__` then you likely need to call `handler.generate_schema(<some type>)` since we do not call `__get_pydantic_core_schema__` on `<some type>` otherwise to avoid infinite recursion.

For further information visit https://errors.pydantic.dev/2.6/u/schema-for-unknown-type

[cosmic latch]

@weary idol

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[weary idol]

thanks in advance

[ripe thorn]

Your code makes no sense. What is the purpose of RequestModel? Right now the way you're using it implies it will be a json payload, but using get() doesn't allow that.

Maybe you meant to make data_scheme also inherit BaseModel?

class DataScheme(BaseModel):
  url: str

class RequestModel(BaseModel):
  iterate_through: List[DataScheme]

If you want it to be query params, define your endpoint like this. ```py
from fastapi import Query

@app.get("/send-requests")
def get_request(request_model: List[str] = Query()):
...

[weary idol]

Ig I'm trying to this. Thanks

!close

[cosmic latch]

Python help channel closed

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