diff --git a/go-apps/meep-ams/server/ams.go b/go-apps/meep-ams/server/ams.go
index e6c3d23452c7c0f0f210394342baf5276cb2eb14..0f7bd77a6dc0e3455645f1c42283a57d04d4cd59 100644
--- a/go-apps/meep-ams/server/ams.go
+++ b/go-apps/meep-ams/server/ams.go
@@ -1495,7 +1495,7 @@ func appMobilityServiceGET(w http.ResponseWriter, r *http.Request) {
 	// Validate query parameters
 	u, _ := url.Parse(r.URL.String())
 	q := u.Query()
-	validParams := []string{"filter", "All_fields", "Fields", "Exclude_fields", "Exclude_default"}
+	validParams := []string{"filter", "all_fields", "fields", "exclude_fields", "exclude_default"}
 	err := validateQueryParams(q, validParams)
 	if err != nil {
 		print("Query Parameter error")
@@ -1504,17 +1504,18 @@ func appMobilityServiceGET(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// Parse query parameters
-	urlFilter := q.Get("filter")
-	// allFields := q.Get("all_fields")
-	// field := q["fields"]
-	// excludeFields := q["exclude_fields"]
-	// excludeDefault := q.Get("exclude_default")
-	if urlFilter != "" {
-		fmt.Printf("filter: %s", urlFilter)
-	}
+	urlFilter := q.Get("Filter")
+	urlAllFields := q.Get("all_fields")
+	urlfields := q.Get("fields")
+	urlExcludeFields := q.Get("exclude_fields")
+	urlExcludeDefault := q.Get("exclude_default")
 	regInfoList := &RegisterationInfoList{
 		Filters: &FilterParameters{
-			filter: urlFilter,
+			filter:          urlFilter,
+			all_fields:      urlAllFields,
+			fields:          urlfields,
+			exclude_fields:  urlExcludeFields,
+			exclude_default: urlExcludeDefault,
 		},
 		Registrations: make([]RegistrationInfo, 0),
 	}
@@ -1565,19 +1566,7 @@ func populateRegInfoList(key string, jsonEntry string, response interface{}) err
 			filterField := data.Filters.filter
 			fmt.Printf("Filter Field: %s", filterField)
 			// Split filterField into operator, attribute, and value
-			operator, attribute, value, _ := parseFilter(string(filterField))
-
-			fmt.Printf("operator: %s", operator)
-			fmt.Printf("attribute: %s", attribute)
-			fmt.Printf("value: %s", value)
-			// filterField = strings.Trim(filterField, "()")
-			// filterParts := strings.SplitN(filterField, ",", 3)
-			// if len(filterParts) != 3 {
-			// 	return nil
-			// }
-			// operator := filterParts[0]
-			// attribute := filterParts[1]
-			// value := filterParts[2]
+			operator, attribute, value, _ := parseFilter(filterField)
 
 			// Apply filters based on attribute
 			switch attribute {
@@ -1608,6 +1597,18 @@ func populateRegInfoList(key string, jsonEntry string, response interface{}) err
 					return nil
 				}
 
+			case "deviceInformation/appMobilityServiceLevel":
+				matched := false
+				for _, deviceInfo := range regInfo.DeviceInformation {
+					if applyStringFilter(operator, string(*deviceInfo.AppMobilityServiceLevel), value) {
+						matched = true
+						break
+					}
+				}
+				if !matched {
+					return nil
+				}
+
 			case "deviceInformation/contextTransferState":
 				matched := false
 				for _, deviceInfo := range regInfo.DeviceInformation {
@@ -1635,7 +1636,116 @@ func populateRegInfoList(key string, jsonEntry string, response interface{}) err
 
 		}
 
+		// Handle Fields Parameter
+		if data.Filters.fields != "" {
+			fields := strings.Split(data.Filters.fields, ",")
+			filteredRegInfo := RegistrationInfo{}
+
+			for _, field := range fields {
+				switch field {
+				case "appMobilityServiceId":
+					filteredRegInfo.AppMobilityServiceId = regInfo.AppMobilityServiceId
+
+				case "serviceConsumerId/appInstanceId":
+					if filteredRegInfo.ServiceConsumerId == nil {
+						filteredRegInfo.ServiceConsumerId = &RegistrationInfoServiceConsumerId{}
+					}
+					if regInfo.ServiceConsumerId.AppInstanceId != "" {
+						filteredRegInfo.ServiceConsumerId.AppInstanceId = regInfo.ServiceConsumerId.AppInstanceId
+					}
+
+				case "serviceConsumerId/mepId":
+					if filteredRegInfo.ServiceConsumerId == nil {
+						filteredRegInfo.ServiceConsumerId = &RegistrationInfoServiceConsumerId{}
+					}
+					if regInfo.ServiceConsumerId.MepId != "" {
+						filteredRegInfo.ServiceConsumerId.MepId = regInfo.ServiceConsumerId.MepId
+					}
+
+				case "deviceInformation/associateId":
+					for _, deviceInfo := range regInfo.DeviceInformation {
+						if deviceInfo.AssociateId.Value != "" {
+							filteredDeviceInfo := RegistrationInfoDeviceInformation{
+								AssociateId: deviceInfo.AssociateId,
+							}
+							filteredRegInfo.DeviceInformation = append(filteredRegInfo.DeviceInformation, filteredDeviceInfo)
+						}
+					}
+
+				case "deviceInformation/appMobilityServiceLevel":
+					for _, deviceInfo := range regInfo.DeviceInformation {
+						if *deviceInfo.AppMobilityServiceLevel != "" {
+							filteredDeviceInfo := RegistrationInfoDeviceInformation{
+								AppMobilityServiceLevel: deviceInfo.AppMobilityServiceLevel,
+							}
+							filteredRegInfo.DeviceInformation = append(filteredRegInfo.DeviceInformation, filteredDeviceInfo)
+						}
+					}
+
+				case "deviceInformation/contextTransferState":
+					for _, deviceInfo := range regInfo.DeviceInformation {
+						if *deviceInfo.ContextTransferState != "" {
+							filteredDeviceInfo := RegistrationInfoDeviceInformation{
+								ContextTransferState: deviceInfo.ContextTransferState,
+							}
+							filteredRegInfo.DeviceInformation = append(filteredRegInfo.DeviceInformation, filteredDeviceInfo)
+						}
+					}
+
+				case "expiryTime":
+					//Logic
+					if string(regInfo.ExpiryTime) != "" {
+						filteredRegInfo.ExpiryTime = regInfo.ExpiryTime
+					}
+
+				}
+				// Replace regInfo with the filtered version
+
+			}
+			regInfo = filteredRegInfo
+		}
+
+		// Handle Exclude Fields Parameter (Exclude specified fields)
+		if data.Filters.exclude_fields != "" {
+			excludeFields := strings.Split(data.Filters.exclude_fields, ",")
+			filteredRegInfo := regInfo
+
+			// Exclude the listed fields
+			for _, field := range excludeFields {
+				switch field {
+				case "appMobilityServiceId":
+					filteredRegInfo.AppMobilityServiceId = "" // Exclude this field
+				case "serviceConsumerId/appInstanceId":
+					if filteredRegInfo.ServiceConsumerId != nil {
+						filteredRegInfo.ServiceConsumerId.AppInstanceId = "" // Exclude this field
+					}
+				case "serviceConsumerId/mepId":
+					if filteredRegInfo.ServiceConsumerId != nil {
+						filteredRegInfo.ServiceConsumerId.MepId = "" // Exclude this field
+					}
+				case "deviceInformation/associateId":
+					for i := range filteredRegInfo.DeviceInformation {
+						filteredRegInfo.DeviceInformation[i].AssociateId = nil // Exclude this field
+					}
+				case "deviceInformation/appMobilityServiceLevel":
+					for i := range filteredRegInfo.DeviceInformation {
+						filteredRegInfo.DeviceInformation[i].AppMobilityServiceLevel = nil // Exclude this field
+					}
+				case "deviceInformation/contextTransferState":
+					for i := range filteredRegInfo.DeviceInformation {
+						filteredRegInfo.DeviceInformation[i].ContextTransferState = nil // Exclude this field
+					}
+				case "expiryTime":
+					filteredRegInfo.ExpiryTime = 0 // Exclude this field
+				}
+			}
+
+			// Replace regInfo with the filtered version based on exclude_fields parameter
+			regInfo = filteredRegInfo
+		}
+
 	}
+	// Returning Data
 	data.Registrations = append(data.Registrations, regInfo)
 	return nil
 }