reverse proxy

caddy/pokemon.Caddyfile

@@ -0,0 +1,15 @@
+pokemon.domain-name.com {
+    reverse_proxy :8080     # Assuming the application is running at PORT 8080
+
+    handle_errors {
+        root * /var/www
+        rewrite * /error.html
+        templates
+        file_server
+    }
+}
+
+# just domain name looks much cleaner
+www.pokemon.domain-name.com {
+    redir pokemon.domain-name.com{uri}
+}

caddy/readme.md

@@ -59,3 +59,19 @@ We can setup seperate error pages for different kind of error. But I'll be using
 For reference look at [error.html](./error.html) file.
 
 To learn more about it check the Caddy docs **RTFM** about [handling errors](https://caddyserver.com/docs/caddyfile/directives/handle_errors).
+
+## Reverse Proxy
+
+**Most of the devs don't know what reverse proxy is. So maybe [check this](https://en.wikipedia.org/wiki/Reverse_proxy) out.**
+
+Lets say we have `pokemon` API running on PORT `8080` and we want any traffic coming to subdomain `pokemon.domain-name.com` to be redirected to the pokemon server.
+To achieve this we can setup reverse proxy for this subdomain.
+To setup reverse proxy first we need to set `A Record` of sub-domain to the IP address of the VPS.
+Then we can define the reverse proxy in our caddy config like mentioned below.
+
+```Caddyfile
+pokemon.domain-name.com {
+    reverse_proxy :8080
+}
+```
+Checkout this sample reverse proxy [config](./pokemon.Caddyfile) and ofc read [caddy docs](https://caddyserver.com/docs/quick-starts/reverse-proxy) to check what else you can do with reverse proxy.