How to check if a branch has been merged into master using github api (or octokit)

Question

I'd like to check if a feature branch has been merged into my master branch using the github api/Octokit. I havent been able to find any documentation or posts on this topic. Is this possible? Does anyone know of any posts that address this topic?

Answer 1

This is the equivalent to git log master..my-cool-branch using Octokit - you want to see if there are any commits on your branch which are not in master:

var head = "my-cool-branch";
var baseBranch = "master";
var compareBaseToHead = await client.Repository.Commit.Compare(owner, repo, baseBranch, head);

if (compareBaseToHead.TotalCommits == 0)
{
    Console.WriteLine("Branch {0} has been merged into {1}", head, baseBranch);
}
else
{
    Console.WriteLine("Branch {0} has NOT been merged into {1}", head, baseBranch);
}