README

profiler.proxy.http.header.enable=true

Pinpoint-ProxyNginx: t=1504248328.423 D=0.123

...
  server {
        listen       9080;
        server_name  localhost;

        location / {
            ...
            set $pinpoint_proxy_header "t=$msec D=$request_time";
            proxy_set_header Pinpoint-ProxyNginx $pinpoint_proxy_header;
        }
  }
...

http {
...

    proxy_set_header Pinpoint-ProxyNginx t=$msec;

...
}