hi, how would i create a branch in lakefs using the REST api, that starts at a specific commit id or tag?

i tried passing in a source of

lakefs://<repo>/<tag>

as well as

lakefs://<repo>/<commit id>

but i keep getting a 500 internal server error

the endpoint (POST) is

https://<our lake fs installation>/api/v1/repositories/origin/branches?repository=origin

with a JSON payload of:

{"name": "my_branch", source: "<lakefs://origin/my_tag>"}

where

my_tag

is a pre-existing tag

on the command line however i can issue this to create a branch from an existing tag, and it works fine:

lakectl branch create <lakefs://origin/verun-test-20220221> --source <lakefs://origin/my_tag/>

Hi Varun, Does that help ? https://docs.lakefs.io/reference/api.html

hey so that’s the documentation i’ve been following

i’m also now trying to use the python lakefs client

but i keep getting this error:

{“message”:“source reference ‘<lakefs://origin/my_tag/>’: not found”}

even though the tag does exist

nm, got the python client working - thanks!

Thanks for the update, let me know if you are running into any other issue

for the api try

https://<our lake fs installation>/api/v1/repositories/origin/branches

with payload

{"name": "my_branch", source: "<lakefs://origin/my_tag>"}