change map proxy cache key

common.conf

@@ -144,6 +144,7 @@ location /map/v1/ {
     proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
     # proxy_set_header   X-Forwarded-Host $host;
     add_header         X-Cache-Status $upstream_cache_status;
+    add_header         X-Test $map_cache_key;
 }
 
 location /map/v2/ {
@@ -157,6 +158,7 @@ location /map/v2/ {
     proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
     # proxy_set_header   X-Forwarded-Host $host;
     add_header         X-Cache-Status $upstream_cache_status;
+    add_header         X-Test $map_cache_key;
 }
 
 location /map/v3/ {
@@ -171,6 +173,7 @@ location /map/v3/ {
     proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
     # proxy_set_header   X-Forwarded-Host $host;
     add_header         X-Cache-Status $upstream_cache_status;
+    add_header         X-Test $map_cache_key;
 }
 
 location /map/v3/hsl/fi/ {

nginx.conf

@@ -8,12 +8,17 @@ daemon off;
 # because nginx doesn't copy port to redirects but always adds :8080
 
 http {
-
+  # map custom proxy cache keys for geocoding and maps
   map $request_uri $geo_cache_key {
     "~(?<location>geocoding\/v1\/(.*)\?)digitransit-subscription-key=((.*?)\&)(?<params>(.*))" $location$params;
     default                    $request_uri;
   }
 
+  map $request_uri $map_cache_key {
+    "~(?<key_part>(.*map\/.*))\?digitransit-subscription-key=((.*))" $key_part;
+    default                    $request_uri;
+  }
+
   log_format custom '$remote_addr - $remote_user [$time_local] '
                       '"$request" $status $body_bytes_sent '
                       '"$http_user_agent" $host $request_time';