rewrite v1

location  /v1/ {
          rewrite /v1/(.+) /$1 permanent;
          proxy_set_header Host $host;
          proxy_set_header X-Request-URL $scheme://$http_host$request_uri;
          proxy_pass http://public-api-backend;
    }


 location  /v1/ {
          proxy_set_header Host $host;
          proxy_set_header X-Request-URL $scheme://$http_host$request_uri;
          proxy_pass http://public-api-backend/;
          # ending slash on proxy_pass  url
    }