Setting the default branch with REST API

[Eyal Goren]

Hi,

I am trying to create a Jenkins Job that automate the creation of Repository in Bitbucket.

I am facing issues with switching default branch using the REST API-

When I call the API with GET- I am receiving the correct value, but when I try to use the POST for setting value, I don't get any errors, but the default branch is not set.

This is what I try to call-

curl --user <user>:<password> -H "Content-Type: application/json" --data '{ "id": "<New branch>" }' -X POST https://<host>/rest/api/1.0/projects/<Project key>/repos/<repo name>/branches/default

[Dave Chevell · Accepted solution]

Hey Eyal_Goren,

The short answer is that you're using the wrong HTTP verb - you should be using PUT, not POST.

More generally, in REST API semantics POST is typically used for creating new resources (e.g. the API to create a branch uses POST), whereas PUT is used for updating existing resources (e.g. in this case, where we're changing the default branch but not creating anything new).

See also https://docs.atlassian.com/bitbucket-server/rest/7.1.1/bitbucket-rest.html#idp205

[Eyal Goren]

Thanks, now it worked!!

[Hari Sekhon]

It looks like the v2 API doesn't work to set the branch at all:

curl ... https://api.bitbucket.org/2.0/repositories/harisekhon/devops-bash-tools -H 'Accept: application/json' -H 'Content-Type: application/json' -X PUT -d '{"mainbranch": { "name": "somexistingbranch", "type": "branch" } }'

returns a 200 OK but doesn't change the default branch.

This looks like a bug?

[Nick de Palézieux]

Seeing the same thing. Have you found a solution?

[Kevin De Notariis]

Well, they still didn't implement it.... 

https://jira.atlassian.com/browse/BCLOUD-20340