How to make such a redirect with dynamic parameters?

Question

Web servers

How to make such a redirect?

https://dpos.space/randomblockchain/?chain=viz&blo... - https://dpos.space/viz/randomblockchain/?block1=35...
(as you understand, instead of viz there can be golos, steem. Instead values ​​of GET parameters may be different).

I tried to implement something like this:
RewriteCond %{QUERY} ^chain=(.*)$&block1=(.*)$&block2=(.*)$?&participants=(.*)$ [NC]
And then stuck

Answer 1

RewriteCond %{QUERY_STRING} ^(|.*?&)chain=([^&]+)&?(.*)
RewriteRule ^randomblockchain/$ https://dpos.space/%2/randomblockchain/?%1%3 [R=301,L]

Answer 2

I'm not good at htaccess redirects, but what's stopping you from doing redirects in JavaScript?