[securityfreak]

Drogon is an application framework. Nginx is a web server. You can’t write a custom application in nginx. You can write almost anything in Drogon.

Both handle HTTP requests, but nginx mostly forwards requests to other stacks.

[dagw]

You can’t write a custom application in nginx.

Using Nginx modules and LuaJIT, you kind of can. OpenResty is a web framework built using this principle.