vercel.json

{
    "version": 2,
    "name": "ztg-api",
    "builds": [
        {
            "src": "build/index.js",
            "use": "@vercel/node"
        }
    ],
    "routes": [
        {
            "src": "/(.*)",
            "dest": "build/index.js"
        }
    ],
    "headers": [
        {
            "source": "/(.*)",
            "headers": [
                {
                    "key": "Access-Control-Allow-Credentials",
                    "value": "true"
                },
                {
                    "key": "Access-Control-Allow-Origin",
                    "value": "*"
                },
                {
                    "key": "Access-Control-Allow-Methods",
                    "value": "GET,OPTIONS,PATCH,DELETE,POST,PUT"
                },
                {
                    "key": "Access-Control-Allow-Headers",
                    "value": "X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version"
                }
            ]
        }
    ]
}