I have an endpoint that accepts a file and some JSON data that describes the file. When I create the endpoint, everything I try results in the error:
"msg": "value is not a valid dict",
"type": "type_error.dict"
An minimal reproducable example of this is:
from fastapi import FastAPI, File
from fastapi.testclient import TestClient
import uvicorn
from pydantic import BaseModel
import json
class TestEndpointModel(BaseModel):
age: int
app = FastAPI()
@app.post("/")
def test_endpoint(data: TestEndpointModel, name: str = File(...)):
return "hi"
client = TestClient(app)
response = client.post(
"/",
files={
"data": json.dumps({"age": 21}).encode('ascii'),
"name": "tom".encode('ascii')
}
)
print(f"{response.status_code=}, {response.json()=}")
uvicorn.run(app)
This prints:
response.status_code=422, response.json()={'detail': [{'loc': ['body', 'data'], 'msg': 'value is not a valid dict', 'type': 'type_error.dict'}, {'loc': ['body', 'name'], 'msg': 'str type expected', 'type': 'type_error.str'}]}
and then when you use the Swagger UI docs, you get the same error:
How do I fix this error?
