Add new repo to an existing group via nexus api

I have a doker group configured in nexus, and its port is added in firewall. I wanted to add newly created docker repoes to be added to this group. I want an API solution, currently I can get all the repos belong that particular group and then remove and recreate. But I just want a solution that will update the group only, not remove and recreate.

I believe what you’re asking for is part of https://issues.sonatype.org/browse/NEXUS-15091 and will be available with 3.20.
If you upgrade to 3.20 (once released) and it’s not there, you can follow up here or file a new issue in JIRA relaying the use case you need.
-Joe