diff --git a/internal/scheduler/slurmRest.go b/internal/scheduler/slurmRest.go
index 2b2ef3b..5dc0459 100644
--- a/internal/scheduler/slurmRest.go
+++ b/internal/scheduler/slurmRest.go
@@ -14,9 +14,11 @@ import (
 	"os"
 	"os/exec"
 	"strconv"
+	"sync"
 	"time"
 
 	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
 // A Response struct to map the Entire Response
@@ -37,7 +39,7 @@ var client *http.Client
 
 func queryDB(qtime int64, clusterName string) ([]interface{}, error) {
 
-	apiEndpoint := "/slurmdb/v0.0.39/jobs"
+	apiEndpoint := "/slurmdb/v0.0.38/jobs"
 
 	// Construct the query parameters
 	queryParams := url.Values{}
@@ -95,7 +97,7 @@ func queryDB(qtime int64, clusterName string) ([]interface{}, error) {
 func queryAllJobs() ([]interface{}, error) {
 	var ctlOutput []byte
 
-	apiEndpoint := "/slurm/v0.0.39/jobs"
+	apiEndpoint := "/slurm/v0.0.38/jobs"
 	// Create a new HTTP GET request with query parameters
 	req, err := http.NewRequest("GET", apiEndpoint, nil)
 	if err != nil {
@@ -177,7 +179,7 @@ func printSlurmInfo(job map[string]interface{}) string {
 		job["account"], job["qos"],
 		job["requeue"], job["restart_cnt"], job["batch_flag"],
 		job["time_limit"],
-		time.Unix(int64(job["submit_time"].(float64)), 0).Format(time.RFC3339),
+		time.Unix(int64(job["submit_time"].(float64)), 0).Format(time.RFC3338),
 		job["partition"],
 		job["nodes"],
 		job["node_count"], cpus, tasks, cpusPerTask,
@@ -250,17 +252,96 @@ func (sd *SlurmRestScheduler) Sync() {
 	//     fmt.Printf("Job %s - %s\n", job.GetJobId(), job.GetJobState())
 	// }
 
-	latestJobs, err := queryAllJobs()
+	jobsResponse, err := queryAllJobs()
 	if err != nil {
 		log.Fatal(err.Error())
 	}
-	for _, job := range latestJobs {
-		// check if each job in latestJobs has existed combination of (job_id, cluster_id, start_time) in JobRepository
-		jobs, err := sd.JobRepository.FindAll(&job.JobID, &job.Cluster, nil)
-		if err != nil && err != sql.ErrNoRows {
-			log.Errorf("checking for duplicate failed: %s", err.Error())
-		} else if err == nil {
-			// should update the JobRepository at this point
+
+	// Fetch an example instance of V0037JobsResponse
+	// jobsResponse := V0037JobsResponse{}
+
+	// Iterate over the Jobs slice
+	for _, job := range jobsResponse.Jobs {
+		// Process each job
+		fmt.Printf("Job ID: %s\n", job.JobID)
+		fmt.Printf("Job Name: %s\n", *job.Name)
+		fmt.Printf("Job State: %s\n", *job.JobState)
+		fmt.Println("Job StartTime:", *job.StartTime)
+
+		// is aquire lock to avoid race condition between API calls needed?
+
+		// aquire lock to avoid race condition between API calls
+		var unlockOnce sync.Once
+		sd.RepositoryMutex.Lock()
+		defer unlockOnce.Do(sd.RepositoryMutex.Unlock)
+
+		// is "running" one of JSON state?
+		if *job.JobState == "running" {
+
+			// Check if combination of (job_id, cluster_id, start_time) already exists:
+			jobs, err := sd.JobRepository.FindAll(job.JobID, &job.Cluster, job.StartTime)
+
+			if err != nil || err != sql.ErrNoRows {
+				log.Errorf("checking for duplicate failed: %s", err.Error())
+				return
+			} else if err == nil {
+				if len(jobs) == 0 {
+					var defaultJob schema.BaseJob = schema.BaseJob{
+						JobID:            job.JobID,
+						User:             job.User,
+						Project:          job.Project,
+						Cluster:          job.Cluster,
+						SubCluster:       job.SubCluster,
+						Partition:        job.Partition,
+						ArrayJobId:       job.ArrayJobId,
+						NumNodes:         job.NumNodes,
+						NumHWThreads:     job.NumHWThreads,
+						NumAcc:           job.NumAcc,
+						Exclusive:        job.Exclusive,
+						MonitoringStatus: job.MonitoringStatus,
+						SMT:              job.SMT,
+						State:            job.State,
+						Duration:         job.Duration,
+						Walltime:         job.Walltime,
+						Tags:             job.Tags,
+						RawResources:     job.RawResources,
+						Resources:        job.Resources,
+						RawMetaData:      job.RawMetaData,
+						MetaData:         job.MetaData,
+						ConcurrentJobs:   job.ConcurrentJobs,
+					}
+					req := &schema.JobMeta{
+						BaseJob:    defaultJob,
+						StartTime:  job.StartTime,
+						Statistics: make(map[string]schema.JobStatistics),
+					}
+					// req := new(schema.JobMeta)
+					id, err := sd.JobRepository.Start(req)
+				} else {
+					for _, job := range jobs {
+						log.Errorf("a job with that jobId, cluster and startTime already exists: dbid: %d", job.ID)
+					}
+				}
+			}
+		} else {
+			// Check if completed job with combination of (job_id, cluster_id, start_time) already exists:
+			existingJob, err := sd.JobRepository.Find(job.JobID, &job.Cluster, job.StartTime)
+
+			if err == nil {
+				existingJob.BaseJob.Duration = job.EndTime - job.StartTime
+				existingJob.BaseJob.State = job.State
+				existingJob.BaseJob.Walltime = job.StartTime
+				req := &StopJobRequest{
+					Cluster:   job.Cluster,
+					JobId:     job.JobId,
+					State:     job.State,
+					StartTime: existingJob.StartTime,
+					StopTime:  job.StartTime,
+				}
+				// req := new(schema.JobMeta)
+				id, err := sd.JobRepository.checkAndHandleStopJob(job, req)
+			}
+
 		}
 	}
 
diff --git a/tools/nats-manager/main.go b/tools/nats-manager/main.go
index d27bbab..ddf1c43 100644
--- a/tools/nats-manager/main.go
+++ b/tools/nats-manager/main.go
@@ -7,7 +7,9 @@ package main
 import (
 	"flag"
 	"fmt"
+	"io/ioutil"
 	"log"
+	"net/http"
 	"os"
 
 	"github.com/ClusterCockpit/cc-backend/internal/scheduler"
@@ -72,11 +74,54 @@ func setupPublisher() {
 	os.Exit(0)
 }
 
+func injectPayload() {
+	// Read the JSON file
+	jobsData, err := ioutil.ReadFile("slurm_0038.json")
+	dbData, err := ioutil.ReadFile("slurmdb_0038-large.json")
+
+	if err != nil {
+		fmt.Println("Error reading JSON file:", err)
+		return
+	}
+
+	// Create an HTTP handler function
+	http.HandleFunc("/slurm/v0.0.38/jobs", func(w http.ResponseWriter, r *http.Request) {
+		// Set the response content type to JSON
+		w.Header().Set("Content-Type", "application/json")
+
+		// Write the raw JSON data to the response writer
+		_, err := w.Write(jobsData)
+		if err != nil {
+			http.Error(w, "Error writing jobsData payload", http.StatusInternalServerError)
+			return
+		}
+	})
+
+	http.HandleFunc("/slurmdb/v0.0.38/jobs", func(w http.ResponseWriter, r *http.Request) {
+		// Set the response content type to JSON
+		w.Header().Set("Content-Type", "application/json")
+
+		// Write the raw JSON data to the response writer
+		_, err := w.Write(dbData)
+		if err != nil {
+			http.Error(w, "Error writing dbData payload", http.StatusInternalServerError)
+			return
+		}
+	})
+
+	// Start the HTTP server on port 8080
+	fmt.Println("Listening on :8080...")
+	http.ListenAndServe(":8080", nil)
+}
+
 func main() {
 	cfgData := []byte(`{"target": "localhost"}`)
 
 	var sch scheduler.SlurmNatsScheduler
 	// sch.URL = "nats://127.0.0.1:1223"
 	sch.Init(cfgData)
+
+	// go injectPayload()
+
 	os.Exit(0)
 }