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backend/nginx-contact.conf.example

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+# Add limit_req_zone in the nginx http {} context (not inside server {}):
+limit_req_zone $binary_remote_addr zone=contact_form:10m rate=3r/m;
+
+# Add this location inside the existing HTTPS server for dilibworld.com:
+location = /api/contact {
+    client_max_body_size 12k;
+    limit_req zone=contact_form burst=5 nodelay;
+    proxy_set_header Host $host;
+    proxy_set_header X-Forwarded-Proto https;
+    proxy_pass http://127.0.0.1:8091;
+}
+
+# If the project directory itself is the Nginx document root, deny backend code:
+location ^~ /backend/ { return 404; }