app.py

import gradio as gr
import os
import json
import collections
from pyrebase import pyrebase
config = {
    "apiKey": os.environ.get("key"),
    "authDomain": os.environ.get("domain"),
    "databaseURL": os.environ.get("url"),
    "projectId": os.environ.get("id"),
    "storageBucket": os.environ.get("st_bk"),
    "messagingSenderId": os.environ.get("sn_id"),
    "appId": os.environ.get("a_id")
}

app = pyrebase.initialize_app(config)
db = app.database()

def function(parameter):
    data = db.child("data").child(parameter).get()
    data = data.val()
    if isinstance(data, collections.OrderedDict):
        data = json.dumps(data)
        return data
    else:
        return data

iface = gr.Interface(fn=function, inputs="text", outputs="text")
iface.launch()