New st.query_params doesn't work?

Using Streamlit
1

I am new to streamlit, and am trying to set query params to be able to share configurations. However, I cannot get the ‘new’ query_params to work at all.

import streamlit as st

st.query_params['test'] = 1
st.write("Done")
st.stop()

does not set the query param

image
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import streamlit as st

st.experimental_set_query_params(test=1)
st.write("Done")
st.stop()

still does

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The new get_all also doesn’t work, this gives an error
st.query_params.get_all("test")

AttributeError: 'dict' object has no attribute 'get_all'

I have checked and I am running 1.30.0 - I get the deprecation warning when using the experimental_* versions, but setting using the new API just doesn’t do anything.

What am I missing?

2

Hello @ksyme99,

To set query parameters, you should use st.experimental_set_query_params .

import streamlit as st

# Set query parameters
st.experimental_set_query_params(test=1)

st.write("Query parameter set")

To get the current query parameters, use st.experimental_get_query_params .

import streamlit as st

# Access query parameters
params = st.experimental_get_query_params()
test_value = params.get("test", ["default_value"])[0]  # Query params are returned as lists

st.write("Test value:", test_value)

Let me know if you might require any further assistance!

Kind Regards,
Sahir

P.S. Lets connect on LinkedIn!

3

This doesn’t seem right? The documentation claims it is an attribute directly on st, not on st.session_state. Also, when I try and access st.session_state.query_params, with a query param in the URL, I get an attribute error.

AttributeError: st.session_state has no attribute "query_params".

4

It appears an unrelated restart has resolved the issue and it’s all working as expected now! Unsure what was going on but since it’s working, all good.

5

@ksyme99, Great to hear all is working fine!

If you have any more questions, feel free to let me know :slight_smile: