Streamlit Component, for a Chat-bot UI, example app
authors - @yashppawar & @YashVardhan-AI
Install streamlit-chat with pip
pip install streamlit-chat usage, import the message function from streamlit_chat
import streamlit as st
from streamlit_chat import message
message("My message")
message("Hello bot!", is_user=True) # align's the message to the right
Another example for html in chat, and Refresh chat button
import streamlit as st
from streamlit_chat import message
from streamlit.components.v1 import html
def on_input_change():
user_input = st.session_state.user_input
st.session_state.past.append(user_input)
st.session_state.generated.append("The messages from Bot\nWith new line")
def on_btn_click():
del st.session_state.past[:]
del st.session_state.generated[:]
audio_path = "https://docs.google.com/uc?export=open&id=16QSvoLWNxeqco_Wb2JvzaReSAw5ow6Cl"
img_path = "https://www.groundzeroweb.com/wp-content/uploads/2017/05/Funny-Cat-Memes-11.jpg"
youtube_embed = '''
<iframe width="400" height="215" src="https://www.youtube.com/embed/LMQ5Gauy17k" title="YouTube video player" frameborder="0" allow="accelerometer; encrypted-media;"></iframe>
'''
markdown = """
### HTML in markdown is ~quite~ **unsafe**
<blockquote>
However, if you are in a trusted environment (you trust the markdown). You can use allow_html props to enable support for html.
</blockquote>
* Lists
* [ ] todo
* [x] done
Math:
Lift($L$) can be determined by Lift Coefficient ($C_L$) like the following
equation.
$$
L = \\frac{1}{2} \\rho v^2 S C_L
$$
~~~py
import streamlit as st
st.write("Python code block")
~~~
~~~js
console.log("Here is some JavaScript code")
~~~
"""
table_markdown = '''
A Table:
| Feature | Support |
| ----------: | :------------------- |
| CommonMark | 100% |
| GFM | 100% w/ `remark-gfm` |
'''
st.session_state.setdefault(
'past',
['plan text with line break',
'play the song "Dancing Vegetables"',
'show me image of cat',
'and video of it',
'show me some markdown sample',
'table in markdown']
)
st.session_state.setdefault(
'generated',
[{'type': 'normal', 'data': 'Line 1 \n Line 2 \n Line 3'},
{'type': 'normal', 'data': f'<audio controls src="{audio_path}"></audio>'},
{'type': 'normal', 'data': f'<img width="100%" height="200" src="{img_path}"/>'},
{'type': 'normal', 'data': f'{youtube_embed}'},
{'type': 'normal', 'data': f'{markdown}'},
{'type': 'table', 'data': f'{table_markdown}'}]
)
st.title("Chat placeholder")
chat_placeholder = st.empty()
with chat_placeholder.container():
for i in range(len(st.session_state['generated'])):
message(st.session_state['past'][i], is_user=True, key=f"{i}_user")
message(
st.session_state['generated'][i]['data'],
key=f"{i}",
allow_html=True,
is_table=True if st.session_state['generated'][i]['type']=='table' else False
)
st.button("Clear message", on_click=on_btn_click)
with st.container():
st.text_input("User Input:", on_change=on_input_change, key="user_input")
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