Get request headers from received request in fetch event.

I am trying to get the headers of received requests, but end up getting null for the following code:

export default {
    async fetch(request, env, ctx) {
        console.log(JSON.stringify(request.headers));
    }
}

export default {
    async fetch(request, env, ctx) {
        console.log(JSON.stringify(request.headers));
    }
}

export default {
    async fetch(request, env, ctx) {
        console.log(JSON.stringify(request.headers));
    }
}

export default {
    async fetch(request, env, ctx) {
        console.log(JSON.stringify(request.headers));
    }
}

kian•2/5/23, 6:05 PM

export default {
    fetch(req) {
        return Response.json(Object.fromEntries(req.headers.entries()));
    },
};

export default {
    fetch(req) {
        return Response.json(Object.fromEntries(req.headers.entries()));
    },
};

saladOP•2/5/23, 6:07 PM

oh, so it's req.headers.entries()? thanks

kian•2/5/23, 6:08 PM

kian•2/5/23, 6:08 PM

Object.fromEntriesObject.fromEntries turns that into an object which you can then stringify - or generally do whatever with