jenkins_url
+ /api/json?tree=jobs[name,color]
jenkins_url
+ /job/${job_name}/api/json?tree=builds[number,status,timestamp,id,result]
- all build info:
jenkins_url
+ /job/${job_name}/lastBuild/api/json
- build progress:
jenkins_url
+ /job/${job_name}/lastBuild/api/json?tree=result,timestamp,estimatedDuration
timestamp = start time
estimatedDuration = duration
You need to make a get request to http://{jenkins-url}/api/json
Keep in mind that you'll need to authenticate this request with valid credentials.