Branch rename with REST API

[Dominik Czerwinski]

Hello,
I have a lot of branches on my repo after migration from SVN, from which
some of them I would like to rename and some of them I would like to delete.
For example i have 4 branches:
"A" - master
"svnsvnB"
"svnsvnC"
"D"
I would like to use endpoint which will GET all branches by Atlassian REST API to some kind of List in for eg. Java Spring APP, filter it by the name for eg. if name contains "svn" put it to delete List
else put it to rename List.
After that use two Endpoints:
first with PUT for update and rename this two branches "A" and "D"
and second one DELETE for delete two branches "svnsvnB" and "svnsvnC"?

And there is some REST for rename branches or first i should create a new branch
from for eg. branch "A" with new name like "A-new-name" and delete "A"? and ofc. im asking about possibility to do it via REST for it.