@sap/jobs-client

@sap/jobs-client

Node.js client for XS Advanced Job Scheduler service.

This is a small Node.js module to integrate jobs in your Node.js application. The module contains utilities to create REST calls in the request format expected by the job scheduler service to register/unregister jobs in job scheduler service, update job schedules and job status.

Usage

General

This module works with job descriptor objects, having the properties as expected by the respective service in JobScheduler.

Constructor

The constructor instantiates a job scheduler client object.

If there is exactly one service binding to the job scheduler service, all necessary information is read from the binding information: if OAuth is configured, the client requests an access token from the bound identity provider; otherwise, user name and password are taken from the cloud environment.

In other cases, the constructor requires an options object that must at least contain the base URL of the job scheduler service and the necessary authentication information, either an OAuth token or user name and password.

The following properties can be set in the constructor options:

name	description
baseURL	the base URL of the job scheduler service
timeout	HTTP request timeout in milliseconds, default 15000
token	OAuth access token for the job scheduler service
user	user name for the job scheduler service (if basic authentication is used)
password	password for the job scheduler service (if basic authentication is used)
retry	Retry configuration object (see below)

Retry Configuration

The retry option allows customization of the automatic retry behavior:

{
  retry: {
    count: 3,                          // Number of retry attempts (default: 3)
    timeoutStrategy: (retryCount) => { // Custom backoff function (optional)
      return Math.pow(2, retryCount) * 1000; // Default: exponential (1s, 2s, 4s)
    }
  }
}

Default behavior:

• 3 retry attempts with exponential backoff (1s, 2s, 4s)
• Retries on: 408 (timeout), 429 (rate limit), 5xx (server errors)
• Does NOT retry on: 4xx client errors (except 408)
• Honors Retry-After header for 429 responses

Example usage with bound job scheduler service:

  const JobSchedulerClient = require('@sap/jobs-client');
  const scheduler = new JobSchedulerClient.Scheduler();

Example usage with Basic Authentication:

  const JobSchedulerClient = require('@sap/jobs-client');

  const options = {
    baseURL: 'https://apphost:port/',
    user: '<username>',
    password: '<password>'
  };
  const scheduler = new JobSchedulerClient.Scheduler(options);

Example usage with OAuth:

  const JobSchedulerClient = require('@sap/jobs-client');

  const options = {
    baseURL: 'https://apphost:port/',
    token: '<token>'
  };
  const scheduler = new JobSchedulerClient.Scheduler(options);

Example usage with custom retry configuration:

  const JobSchedulerClient = require('@sap/jobs-client');

  const options = {
    baseURL: 'https://apphost:port/',
    token: '<token>',
    retry: {
      count: 5,  // 5 retry attempts instead of default 3
      timeoutStrategy: (retryCount) => {
        // Custom: flat 2-second delay
        return 2000;
      }
    }
  };
  const scheduler = new JobSchedulerClient.Scheduler(options);

Create job

  const myJob = { /* according to job scheduler documentation */ };
  const scJob = { job: myJob };

  scheduler.createJob(scJob, function (error, body) {
    if (error) {
      return console.log('Error registering new job %s', error);
    }
    // job was created successfully
    job.id = body._id;
  });

Update job

  const req = {
    jobId: 33,
    job: {
      user : 'John',
      password : 'secret',
      active : 1
    }
  };
  scheduler.updateJob(req, function(err, result) {
    if (err) {
      return console.log('Error updating job: %s', err);
    }
    //job was updated successfully
  });

Delete job

  const req = {
    jobId: 33
  };
  scheduler.deleteJob(req, function(err, result) {
    if (err) {
      return console.log('Error deleting job: %s', err);
    }
    //job was deleted successfully
  });

Get job Details

  const req = {
    //by Id
    jobId: 33
  };
  scheduler.fetchJob(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving job: %s', err);
    }
    //job details retrieved successfully
  });
  const req = {
    //by name
    name: 'my job'
  };
  scheduler.fetchJob(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving job: %s', err);
    }
    //job details retrieved successfully
  });

Create job schedule

  const mySchedule = { /* according to job scheduler documentation */ }
  const req = {
    jobId: 33,
    schedule: mySchedule
  };
  scheduler.createJobSchedule(req, function(err, result) {
    if (err) {
      return console.log('Error creating job schedule: %s', err);
    }
    //Schedule created successfully
  });

Update job schedule

  const req = {
    jobId: 33,
    scheduleId: 'ABC-DEF',
    schedule: {
      cron: "* * * * 4"
    }
  };
  scheduler.updateJobSchedule(req, function(err, result) {
    if (err) {
      return console.log('Error updating job schedule: %s', err);
    }
    //Schedule updated successfully
  });

###Delete job schedule

  const req = {
    jobId: 33,
    scheduleId: 'ABC-DEF'
  };
  scheduler.deleteJobSchedule(req, function(err, result) {
    if (err) {
      return console.log('Error deleting schedule: %s', err);
    }
    //Schedule deleted successfully
  });

Get jobs with pagination

  const req = {
    page_size: 10,  // Optional: 1-100, defaults to server default
    offset: 0       // Optional: starting position
  };
  scheduler.fetchJobs(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving jobs: %s', err);
    }
    // result contains:
    // - total: total number of jobs
    // - results: array of jobs for this page
    // - prev_url: URL for previous page (if exists)
    // - next_url: URL for next page (if exists)
    console.log('Total jobs: %s', result.total);
    console.log('Jobs in this page: %s', result.results.length);
  });

Get all jobs

  const req = {};
  scheduler.fetchAllJobs(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving jobs: %s', err);
    }
    // Automatically fetches all pages and returns all jobs
    // result contains:
    // - total: total number of jobs
    // - results: array of all jobs
    console.log('Total jobs: %s', result.total);
    console.log('All jobs: %s', result.results.length);
  });

Get job schedule details

  const req = {
    jobId: 33,
    scheduleId: 'ABC-DEF',
    displayLogs: false
  };
  scheduler.fetchJobSchedule(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving schedule: %s', err);
    }
    //Schedule retrieved successfully
  });

Get schedules of job

  const req = {
    jobId: 33
  };
  scheduler.fetchJobSchedules(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving all schedules: %s', err);
    }
    //All schedules retrieved successfully
  });

Update run log of schedule

  const req = {
    jobId: 33,
    scheduleId: 'ABC-DEF',
    runId: 1,
    data: data
  };
  scheduler.updateJobRunLog(req, function(err, result) {
    if (err) {
      return console.log('Error updating run log: %s', err);
    }
    //Run log updated successfully
  });

Get run logs of schedule

  const req = {
    jobId: 33,
    scheduleId: 'ABC-DEF',
    page_size: 15,
    offset: 0
  };
  scheduler.getRunLogs(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving run logs: %s', err);
    }
    //Run log retrieved successfully
  });

Delete all schedules of job

  const req = {
    jobId: 3
  };
  scheduler.deleteAllJobSchedules(req, function(err, result) {
    if (err) {
      return console.log('Error deleting schedules: %s', err);
    }
    //All schedules deleted successfully
  });

Bulk activation of schedules of job

  const req = {
    jobId: 3
  };
  scheduler.activateAllSchedules(req, function(err, result) {
    if (err) {
      return console.log('Error activating bulk schedules: %s', err);
    }
    //All schedules activated successfully
  });

Bulk deactivation of schedules of job

  const req = {
    jobId: 3
  };
  scheduler.deactivateAllSchedules(req, function(err, result) {
    if (err) {
      return console.log('Error deactivating bulk schedules: %s', err);
    }
    //All schedules deactivated successfully
  });

Get action logs of job

  const req = {
    jobId: 3
  };
  scheduler.getJobActionLogs(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving action logs: %s', err);
    }
    //All actionlogs logs retrieved successfully
  });

Get action logs of schedule

  const req = {
    jobId: 3,
    scheduleId: "ABC-DEF"
  };
  scheduler.getScheduleActionLogs(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving action logs: %s', err);
    }
    //All actionlogs logs retrieved successfully
  });

Get active and inactive jobcount

  const req = {
    activeStatus: true // true- for getting active number of jobs and false- for getting inactive number of jobs
  };
  scheduler.getJobCount(req, function(err, result) {
    if (err) {
      return console.log('Error retrieving jobcount: %s', err);
    }
    //Active Job count retrieved successfully
  });

Search API

Search can be done in both job and schedule entities. Here in the client 'q' contains the query parameter, you need to provide the query in decoded format, the client will decode the query. And filtering parameters can be provided as shown below:

const searchToken = {
    q : 'job startTime:>2011-02-18 active:false',
    displaySchedules : 'false',
    offset : 0,
    page_size : 5
  };

  scheduler.searchJobs(searchToken,function(error,result) {
      if (error) {
        return console.log('Error during Job search: %s',error);
      }
      console.log(JSON.stringify(result));
  });

For schedule search:

const searchScheduleToken = {
  q : 'startTime:>2011-02-18 active:false',
  offset : 0,
  page_size : 5
};

scheduler.searchSchedules(searchScheduleToken,function(error,result) {
    if (error) {
      return console.log('Error during Schedule search %s',error);
    }
    console.log(JSON.stringify(result));
});