now.json

{
    "version": 2,
    "name": "oui_api",
    "builds": [
        {
            "src": "static/*",
            "use": "@vercel/static"
        },
        {
            "src": "static/js/*",
            "use": "@vercel/static"
        },
        {
            "src": "static/css/*",
            "use": "@vercel/static"
        },
        {
            "src": "api/__main__.py",
            "use": "@now/python@canary"
        } 
    ],
    "routes": [
        {
            "src": "/.*",
            "dest": "/api/__main__.py",
            "headers": {
                "Access-Control-Allow-Origin": "*",
                "Access-Control-Allow-Headers": "Origin, X-Requested-With, Content-Type, Accept, Authorization",
                "RetryLife-Service-Source": "lambda",
                "Access-Control-Allow-Credentials": "true"
            }
        },
        {
            "src": "/",
            "dest": "/api/__main__.py",
            "headers": {
                "Access-Control-Allow-Origin": "*",
                "Access-Control-Allow-Headers": "Origin, X-Requested-With, Content-Type, Accept, Authorization",
                "RetryLife-Service-Source": "lambda",
                "Access-Control-Allow-Credentials": "true"
            }
        }
    ]
}