Requests library not retrieving latest data

Using Streamlit
1

My app is designed to retrieve data when a button is clicked. However, it returns old data from the day I first deployed.

Is there a command to force Streamlit’s refresh to run the command anew? I believe it does not run because there has not been a change to the source code during the refresh.

 import requests
 
 if st.button('Execute'):
    url = "https://content.json"
    r = requests.request("GET", url)
    data = r.json()
    ...
  • Streamlit version: 1.24.0
  • Python version: 3.8.16
  • Using Conda
2

Hi @Aaron_Moore,

Thanks for posting!

Are you caching your requests function anywhere in your code?

Here is an example of how the aching works and returns the same results if the input is unchanged:

import requests
import streamlit as st

@st.cache_data
def fetch_data():
    URL = "https://official-joke-api.appspot.com/random_joke"
    response = requests.get(URL)
    data = response.json()
    return data

if st.button('Fetch Joke'):
    with st.spinner('Fetching joke...'):
        joke = fetch_data()
    st.write(joke['setup'])
    st.success(joke['punchline'])

Here’s the same code without the caching mechanism which will update each time the Fetch Joke button is clicked:

import requests
import streamlit as st

def fetch_data():
    URL = "https://official-joke-api.appspot.com/random_joke"
    response = requests.get(URL)
    data = response.json()
    return data

if st.button('Fetch Joke'):
    with st.spinner('Fetching joke...'):
        joke = fetch_data()
    st.write(joke['setup'])
    st.success(joke['punchline'])
3

Thanks for the reply @tonykip. I was not caching the request, but the problem seems to have gone away. The request is now pulling live data with each execution. Thanks again.

1 Like
4

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