Body defined with 1 singular value cause fail

[drnextgis]

Is there a way to define JSON body with only single key using Body? It works fine when body has more then 1 key, for example:

import uvicorn
from fastapi import Body, FastAPI

app = FastAPI()


@app.post("/good")
async def good(name: str = Body(...), surname: str = Body(...)):
    return {"name": name, "surname": surname}

uvicorn.run(app, host='127.0.0.1', port=8000)

$ curl -X POST "http://127.0.0.1:8000/good" -d '{"name": "John", "surname": "Doe"}'
{"name":"John","surname":"Doe"}

But I couldn't make it work for body with only one key:

@app.post("/bad")
async def bad(name: str = Body(...)):
    return {"name": name}

$ curl -X POST "http://127.0.0.1:8000/bad" -d '{"name": "John"}'                  
{"detail":[{"loc":["body"],"msg":"str type expected","type":"type_error.str"}]}

Am I missing something?

[Kludex]

You are.

Try this:

$ curl -X POST "http://127.0.0.1:8000/bad" -d '{"John"}'                  

[drnextgis]

@Kludex thanks but it doesn't work either. I have found an answer here:

@app.post("/bad")
async def bad(name: str = Body(..., embed=True)):
    return {"name": name}

$ curl -X POST "http://127.0.0.1:8000/bad" -d '{"name": "John"}'
{"name":"John"}

[Kludex]

Sorry, I meant (without the brackets) : 😅

$ curl -X POST "http://127.0.0.1:8000/bad" -d '"John"'                  

But you can also use the embed, I just wanted to show you that it's not wrong, you just expect a different input format.

[tiangolo]

Thanks for the help here @Kludex ! 👏 🙇

Thanks for reporting back and closing the issue @drnextgis 👍

Sorry for the long delay! 🙈 I wanted to personally address each issue/PR and they piled up through time, but now I'm checking each one in order.