PyCafe - Streamlit - Simple Chat with Gemini

app.py
requirements.txt
app.py
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import json
import requests
import streamlit as st
import pycafe

st.set_page_config(page_title="Gemini Minimal Chat", layout="centered")
st.title("Gemini Minimal Chat")

API_KEY = pycafe.get_secret("GEMINI_API_KEY")
if not API_KEY:
    st.error("GEMINI_API_KEY fehlt im py.cafe Tresor.")
    st.stop()

MODEL = "gemini-2.5-flash"
URL = f"https://generativelanguage.googleapis.com/v1beta/models/{MODEL}:generateContent"

prompt = st.text_area("Prompt", height=180, placeholder="Schreibe deine Nachricht an Gemini…")
if st.button("Senden", type="primary") and prompt.strip():
    payload = {
        "contents": [{"role": "user", "parts": [{"text": prompt.strip()}]}],
        "generationConfig": {"temperature": 0.4, "maxOutputTokens": 512},
    }
    r = requests.post(
        URL,
        params={"key": API_KEY},
        headers={"Content-Type": "application/json"},
        data=json.dumps(payload),
        timeout=60,
    )
    if r.status_code != 200:
        st.error(f"API-Fehler {r.status_code}: {r.text}")
    else:
        data = r.json()
        try:
            st.markdown(data["candidates"][0]["content"]["parts"][0]["text"])
        except Exception:
            st.error(f"Unerwartetes Antwortformat: {data}")
Py.Cafe

simple-chat-gemini

Simple Chat with Gemini
