nginx proxy_pass and URL decoding

Question

Original URL: /api/url%2Fencoded%2F/?with=queryParams

nginx:

location /api {
    client_max_body_size 2G;
    proxy_pass https://oursite;
}

With this configuration, I was able to preserve the URL encoding when passing through the proxy. If I add a "/" after "oursite", it will decode the URL.

Problem:

Now the URL after being proxied still contains "/api/". I need to remove "/api/" only while still preserving the URL encoded parts.

Answer 1

Not a long time ago there was identical question without an answer. In my opinion, you should rething api to not have such weird URLs. Another way is to have api on subdomain. – Alexey Ten Mar 11 '15 at 22:58

stackoverflow.com/q/28684300/1016033 – Alexey Ten Mar 11 '15 at 23:01

Year-old challenge accepted!

    location /api/ {
        rewrite ^ $request_uri;
        rewrite ^/api/(.*) $1 break;
        return 400;
        proxy_pass http://127.0.0.1:82/$uri;
    }

That's it, folks!

More details at Nginx pass_proxy subdirectory without url decoding, but it does work even with the query string, too:

%  curl "localhost:81/api/url%2Fencoded%2F/?with=queryParams"
/url%2Fencoded%2F/?with=queryParams
%