Hello experts,

Can anyone tell me how to configure nginx reverse proxy so that it redirects incoming requests according to the following scheme:

http://xxx.com/a/b/?arg3=3 -> https://yyy.com/a/b/?arg1=1&arg2=2&arg3=3
http://xxx.com/a/b/?arg3=4 -> https://yyy.com/a/b/?arg1=1&arg2=2&arg3=4
http://xxx.com/a/b/?arg3=5 -> https://yyy.com/a/b/?arg1=1&arg2=2&arg3=5

Thanks in advance