app.py

import gradio as gr
from huggingface_hub import InferenceClient
import os 

token = os.getenv("TOKEN")
endpoint = os.getenv("ENDPOINT")

# initialize InferenceClient
client = InferenceClient(model="https://api-inference.huggingface.co/models/meta-llama/Llama-2-7b-chat-hf", token=token)

# query client using streaming mode
def inference(message, history):
    partial_message = ""
    for token in client.text_generation(message, max_new_tokens=20, stream=True):
        partial_message += token
        yield partial_message

gr.ChatInterface(
    inference,
    chatbot=gr.Chatbot(height=300),
    textbox=gr.Textbox(placeholder="Chat with me!", container=False, scale=7),
    title="Gradio 🤝 TGI",
    description="This is the demo for Gradio UI consuming TGI endpoint with Falcon model.",
    theme="abidlabs/Lime",
    examples=["Are tomatoes vegetables?"],
    cache_examples=True,
    retry_btn="Retry",
    undo_btn="Undo",
    clear_btn="Clear",
).queue().launch()