app.py

import gradio as gr
import requests
import os

API_URL = "https://fal.run/fal-ai/dia-tts"
headers = {"Authorization": f"Bearer {os.getenv('HF_TOKEN')}"}

def query(text):
    payload = {"text": text}
    response = requests.post(API_URL, headers=headers, json=payload)
    if response.status_code != 200:
        return f"❌ Error: {response.status_code} - {response.text}"
    return response.json()

with gr.Blocks(fill_height=True) as demo:
    with gr.Sidebar():
        gr.Markdown("# Inference Provider")
        gr.Markdown("This Space showcases the nari-labs/Dia-1.6B model, served by the fal-ai API. Sign in with your Hugging Face account to use this API.")
        gr.Markdown("🔑 Make sure your Hugging Face access token is available in the environment.")
    
    with gr.Row():
        inp = gr.Textbox(label="Input your text", placeholder="Type something...")
        out = gr.Textbox(label="Response")

    submit_btn = gr.Button("Submit")
    submit_btn.click(fn=query, inputs=inp, outputs=out)
    
print("TOKEN LOADED:", os.getenv("HF_TOKEN"))
demo.launch()