Web hooks
Project web hooks allow you to trigger an URL if new code is pushed or a new issue is created.
You can configure web hooks to listen for specific events like pushes, issues or merge requests. GitLab will send a POST request with data to the web hook URL.
Web hooks can be used to update an external issue tracker, trigger CI builds, update a backup mirror, or even deploy to your production server.
If you send a web hook to an SSL endpoint the certificate will not be verified since many people use self-signed certificates.
Push events
Triggered when you push to the repository except when pushing tags.
Request header:
X-Gitlab-Event: Push Hook
Request body:
{
"object_kind": "push",
"before": "95790bf891e76fee5e1747ab589903a6a1f80f22",
"after": "da1560886d4f094c3e6c9ef40349f7d38b5d27d7",
"ref": "refs/heads/master",
"user_id": 4,
"user_name": "John Smith",
"user_email": "john@example.com",
"project_id": 15,
"repository": {
"name": "Diaspora",
"url": "git@example.com:mike/diasporadiaspora.git",
"description": "",
"homepage": "http://example.com/mike/diaspora",
"git_http_url":"http://example.com/mike/diaspora.git",
"git_ssh_url":"git@example.com:mike/diaspora.git",
"visibility_level":0
},
"commits": [
{
"id": "b6568db1bc1dcd7f8b4d5a946b0b91f9dacd7327",
"message": "Update Catalan translation to e38cb41.",
"timestamp": "2011-12-12T14:27:31+02:00",
"url": "http://example.com/mike/diaspora/commit/b6568db1bc1dcd7f8b4d5a946b0b91f9dacd7327",
"author": {
"name": "Jordi Mallach",
"email": "jordi@softcatala.org"
}
},
{
"id": "da1560886d4f094c3e6c9ef40349f7d38b5d27d7",
"message": "fixed readme",
"timestamp": "2012-01-03T23:36:29+02:00",
"url": "http://example.com/mike/diaspora/commit/da1560886d4f094c3e6c9ef40349f7d38b5d27d7",
"author": {
"name": "GitLab dev user",
"email": "gitlabdev@dv6700.(none)"
}
}
],
"total_commits_count": 4
}
Tag events
Triggered when you create (or delete) tags to the repository.
Request header:
X-Gitlab-Event: Tag Push Hook
Request body:
{
"object_kind": "tag_push",
"ref": "refs/tags/v1.0.0",
"before": "0000000000000000000000000000000000000000",
"after": "82b3d5ae55f7080f1e6022629cdb57bfae7cccc7",
"user_id": 1,
"user_name": "John Smith",
"project_id": 1,
"repository": {
"name": "jsmith",
"url": "ssh://git@example.com/jsmith/example.git",
"description": "",
"homepage": "http://example.com/jsmith/example",
"git_http_url":"http://example.com/jsmith/example.git",
"git_ssh_url":"git@example.com:jsmith/example.git",
"visibility_level":0
},
"commits": [],
"total_commits_count": 0
}
Issues events
Triggered when a new issue is created or an existing issue was updated/closed/reopened.
Request header:
X-Gitlab-Event: Issue Hook
Request body:
{
"object_kind": "issue",
"user": {
"name": "Administrator",
"username": "root",
"avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=40\u0026d=identicon"
},
"object_attributes": {
"id": 301,
"title": "New API: create/update/delete file",
"assignee_id": 51,
"author_id": 51,
"project_id": 14,
"created_at": "2013-12-03T17:15:43Z",
"updated_at": "2013-12-03T17:15:43Z",
"position": 0,
"branch_name": null,
"description": "Create new API for manipulations with repository",
"milestone_id": null,
"state": "opened",
"iid": 23,
"url": "http://example.com/diaspora/issues/23",
"action": "open"
}
}
Merge request events
Triggered when a new merge request is created or an existing merge request was updated/merged/closed.
Request header:
X-Gitlab-Event: Merge Request Hook
Request body:
{
"object_kind": "merge_request",
"user": {
"name": "Administrator",
"username": "root",
"avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=40\u0026d=identicon"
},
"object_attributes": {
"id": 99,
"target_branch": "master",
"source_branch": "ms-viewport",
"source_project_id": 14,
"author_id": 51,
"assignee_id": 6,
"title": "MS-Viewport",
"created_at": "2013-12-03T17:23:34Z",
"updated_at": "2013-12-03T17:23:34Z",
"st_commits": null,
"st_diffs": null,
"milestone_id": null,
"state": "opened",
"merge_status": "unchecked",
"target_project_id": 14,
"iid": 1,
"description": "",
"source": {
"name": "awesome_project",
"ssh_url": "ssh://git@example.com/awesome_space/awesome_project.git",
"http_url": "http://example.com/awesome_space/awesome_project.git",
"visibility_level": 20,
"namespace": "awesome_space"
},
"target": {
"name": "awesome_project",
"ssh_url": "ssh://git@example.com/awesome_space/awesome_project.git",
"http_url": "http://example.com/awesome_space/awesome_project.git",
"visibility_level": 20,
"namespace": "awesome_space"
},
"last_commit": {
"id": "da1560886d4f094c3e6c9ef40349f7d38b5d27d7",
"message": "fixed readme",
"timestamp": "2012-01-03T23:36:29+02:00",
"url": "http://example.com/awesome_space/awesome_project/commits/da1560886d4f094c3e6c9ef40349f7d38b5d27d7",
"author": {
"name": "GitLab dev user",
"email": "gitlabdev@dv6700.(none)"
}
},
"url": "http://example.com/diaspora/merge_requests/1",
"action": "open"
}
}
Example webhook receiver
If you want to see GitLab's webhooks in action for testing purposes you can use a simple echo script running in a console session.
Save the following file as print_http_body.rb
.
require 'webrick'
server = WEBrick::HTTPServer.new(:Port => ARGV.first)
server.mount_proc '/' do |req, res|
puts req.body
end
trap 'INT' do
server.shutdown
end
server.start
Pick an unused port (e.g. 8000) and start the script: ruby print_http_body.rb 8000
. Then add your server as a webhook receiver in GitLab as
http://my.host:8000/
.
When you press 'Test Hook' in GitLab, you should see something like this in the console.
{"before":"077a85dd266e6f3573ef7e9ef8ce3343ad659c4e","after":"95cd4a99e93bc4bbabacfa2cd10e6725b1403c60",<SNIP>}
example.com - - [14/May/2014:07:45:26 EDT] "POST / HTTP/1.1" 200 0
- -> /