Falco F#
A F# snippet for Falco that answers requests for /pixel.gif with the empty GIF, decoded once at startup.
Falco F#
open System
open Falco
open Falco.Routing
open Microsoft.AspNetCore.Builder
let gif = Convert.FromBase64String "R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=="
let pixel: HttpHandler =
Response.ofBinary "image/gif" [ "Cache-Control", "no-store" ] gif
let endpoints = [ get "/pixel.gif" pixel ]
let wapp = WebApplication.Create()
wapp.Urls.Add "http://0.0.0.0:8080"
wapp.UseRouting()
.UseFalco(endpoints)
.Run(Response.withStatusCode 404 >> Response.ofPlainText "Not Found")
We ran this snippet and compared the bytes it returned.
Check it
curl -sI http://localhost:8080/pixel.gif