How to find users who approved a pull request using github api? - github

Question

For example, given this pull request : https://github.com/harsh-groverfk/jenkins-demo/pull/16
How to find the list of users who have "approved" the changes in these pull requests.
this is an example review for this pull request : https://github.com/harsh-groverfk/jenkins-demo/pull/16#pullrequestreview-16967726

Answer 1

You can do this by using the List Reviews for a Pull Request API endpoint. For the example PR you've listed this would be:
GET /repos/harsh-groverfk/jenkins-demo/pulls/16/reviews
This will output all reviews done on a PR (example from the docs):
[
{
"id": 80,
"user": {
"login": "octocat",
"id": 1,
"avatar_url": "https://github.com/images/error/octocat_happy.gif",
"gravatar_id": "",
"url": "https://api.github.com/users/octocat",
"html_url": "https://github.com/octocat",
"followers_url": "https://api.github.com/users/octocat/followers",
"following_url": "https://api.github.com/users/octocat/following{/other_user}",
"gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
"starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
"subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
"organizations_url": "https://api.github.com/users/octocat/orgs",
"repos_url": "https://api.github.com/users/octocat/repos",
"events_url": "https://api.github.com/users/octocat/events{/privacy}",
"received_events_url": "https://api.github.com/users/octocat/received_events",
"type": "User",
"site_admin": false
},
"body": "Here is the body for the review.",
"commit_id": "ecdd80bb57125d7ba9641ffaa4d7d2c19d3f3091",
"state": "APPROVED",
"html_url": "https://github.com/octocat/Hello-World/pull/12#pullrequestreview-80",
"pull_request_url": "https://api.github.com/repos/octocat/Hello-World/pulls/12",
"_links": {
"html": {
"href": "https://github.com/octocat/Hello-World/pull/12#pullrequestreview-80"
},
"pull_request": {
"href": "https://api.github.com/repos/octocat/Hello-World/pulls/12"
}
}
}
]

Answer 2

Using the GraphQL API:
{
repository(name: "jenkins-demo", owner: "harsh-groverfk") {
pullRequest(number: 16) {
reviews(first: 100, states: APPROVED) {
nodes {
author {
avatarUrl
login
resourcePath
url
}
}
}
}
}
}
Response:
{
"data": {
"repository": {
"pullRequest": {
"reviews": {
"nodes": [
{
"author": {
"avatarUrl": "https://avatars.githubusercontent.com/u/24560176?v=4",
"login": "alekh2",
"resourcePath": "/alekh2",
"url": "https://github.com/alekh2"
}
}
]
}
}
}
}
}
If you don't have the specific pull request number, you can query the pullRequests field.