Nginx rewrite question

Question

Simple one - but I would rather use location + rewrite vs if + rewrite (if is evil, correct?)

old url: /app?key=1234

new url: /system/app.html?key=1234

Tried

location  /app {
  rewrite ^/app$ /system/app.html break;
}

and only got a 404...

Answer 1

try this

location  /app {
  rewrite ^/app(.*)$ /system/app.html$1 permanent;
}