Problem with fastAPI and couchdb (sign up api)

Hello everyone, I am trying to do a sign up API with python and the library fastAPI with a couchdb database. So the front makes a post request with json, and the api put it on database. But I did a code and it just doesn't work. Here is the code :

from fastapi import FastAPI, Body 
import uvicorn
from typing import Union
from pydantic import BaseModel
from typing import Optional
import couchdb
from couchdb import Server

api = FastAPI() #on instancie 

class User_register(BaseModel):
    first_name: str
    last_name: str
    gender: str
    age: int
    address:str 
    e_mail:  str

@api.post('/postuserinfo')
def create_post(payload: dict = Body(...)):
    couch_data = 'http://admin:pass@localhost:5984/db_reviewin'
    couch_data.save(payload)
    return {"Status":"Done"}  

if __name__ == '__main__':
    uvicorn.run(api, host= '127.0.0.1', port= 8000)

tiangolo / full-stack-flask-couchdb

Problem with fastAPI and couchdb (sign up api) #5