Parsing Git Json with Regular Express - json

Question

I am taking a Github json file and parsing it with Java's regular expression library JsonPath. I am having a problem parsing arrays that do not have labels.
I need to send a email every time a particular file is changed in our repository.
Here is the Git Json:
{
"trigger": "push",
"payload": {
"type": "GitPush",
"before": "xxxxxxxx",
"after": "yyyyyyyy",
"branch": "branch-name",
"ref": "refs/heads/branch-name",
"repository": {
"id": 42,
"name": "repo",
"title": "repo",
"type": "GitRepository"
},
"beanstalk_user": {
"type": "Owner",
"id": 42,
"login": "username",
"email": "user#example.org",
"name": "Name Surname"
},
"commits": [
{
"type": "GitCommit",
"id": "ffffffff",
"message": "Important changes.",
"branch": "branch-name",
"author": {
"name": "Name Surname",
"email": "user#example.org"
},
"beanstalk_user": {
"type": "Owner",
"id": 42,
"login": "username",
"email": "user#example.org",
"name": "Name Surname"
},
"changed_files": {
"added": [
"NEWFILE",
],
"deleted": [
"Gemfile",
"NEWFILE"
],
"modified": [
"README.md",
"NEWFILE"
],
"copied": [
]
},
"changeset_url": "https://subdomain.github.com/repository-name/changesets/ffffffff",
"committed_at": "2014/08/18 13:30:29 +0000",
"parents": [
"afafafaf"
]
}
]
}
}
This is the expression I am using: to get the commits
$..changed_files
This return the whole changed files part but I can not explicitly choose the name "NEWFILE"
I tried
$..changed_files.*[?(#.added == "NEWFILE")]
$..changed_files.*[?(#.*== "NEWFILE")]
It just returns a empty array.
I just want it to return Newfile and what type of change. Any Ideas?

Answer 1

You can use the following JsonPath to retrieve the commits which list "NEWFILE" as an added file :
$.payload.commits[?(#.changed_files.added.indexOf("NEWFILE") != -1)]