routes.json

{
  "routes": {
    "proj": [
      {
        "match": {
          "uri": "~^/mail/"
        },
        "action": {
          "pass": "routes/mailer"
        }
      },
      {
        "action": {
          "pass": "applications/wsgi"
        }
      }
    ],
    "mailer": [
      {
        "match": {
          "uri": "~^/mail/check/"
        },
        "action": {
          "pass": "routes/mailer.check_urls"
        }
      },
      {
        "match": {
          "uri": [
            "~^/mail/send/$"
          ]
        },
        "action": {
          "pass": "applications/asgi"
        }
      },
      {
        "action": {
          "pass": "applications/wsgi"
        }
      }
    ],
    "mailer.check_urls": [
      {
        "match": {
          "uri": [
            "~^/mail/check/notify/$"
          ]
        },
        "action": {
          "pass": "applications/asgi"
        }
      },
      {
        "action": {
          "pass": "applications/wsgi"
        }
      }
    ]
  }
}