gistfile1.txt

vcl 4.0; /* don't mind that, that's the vcl version, not the varnish version*/

import std;

backend api {
	.host = "192.168.1.123";
}

backend api_limited {
	.host = "192.168.1.123";
	.max_connections = 10;
}

/* called when we receive a request (req) */
sub vcl_recv {
	set req.url = std.querysort(req.url);
}

/* called before sending the backend request (bereq) */
sub vcl_backend_fetch {
	if (bereq.is_bgfetch) {
		set bereq.backend = api_limited;
	} else {
		set bereq.backend = api;
	}
}

/* called when we receive the backend response (beresp) */
sub vcl_backend_response {
	/* check if the content-type header contains "application/xml" */
	if (beresp.http.content-type ~ "application/xml") {
		set beresp.do_gzip = true;
	}
	set beresp.ttl = 5m;
	set beresp.grace = 6h;
}