Nim standard library (asynchttpserver) Nim

Um snippet em Nim para Nim standard library (asynchttpserver) que responde às requisições para /pixel.gif com o GIF vazio, decodificado uma única vez na inicialização.

Nim standard library (asynchttpserver) Nim

Caminho

Arquivo: server.nim
Executar: nim c -r -d:release server.nim

import std/[asyncdispatch, asynchttpserver, base64]

# Decoded at compile time; a const is also safe to use from the gcsafe callback.
const gif = decode("R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==")

proc handler(req: Request) {.async.} =
  if req.reqMethod == HttpGet and req.url.path == "/pixel.gif":
    let headers = newHttpHeaders({"Content-Type": "image/gif", "Cache-Control": "no-store"})
    await req.respond(Http200, gif, headers)
  else:
    await req.respond(Http404, "Not Found")

let server = newAsyncHttpServer()
waitFor server.serve(Port(8080), handler)

Conferido com a documentação atual do framework.

Verificar

curl -sI http://localhost:8080/pixel.gif

Site oficial: Nim standard library (asynchttpserver)