api/generate.py

from flask import Blueprint, request
from services.runway import generate_video
from services.credit_system import has_credit, use_credit

gen_bp = Blueprint("gen", __name__)

@gen_bp.route("/generate", methods=["POST"])
def generate():
    user = "demo"

    if not has_credit(user):
        return {"error": "No credits"}

    prompt = request.json["prompt"]

    video = generate_video(prompt)

    use_credit(user)

    return {"video": video}