diff --git a/components/micro-gateway-core/src/main/ballerina/gateway/data_writer.bal b/components/micro-gateway-core/src/main/ballerina/gateway/data_writer.bal
index 57014f6ab3..a06138ff14 100644
--- a/components/micro-gateway-core/src/main/ballerina/gateway/data_writer.bal
+++ b/components/micro-gateway-core/src/main/ballerina/gateway/data_writer.bal
@@ -56,6 +56,8 @@ function generateRequestEvent(http:Request request, http:FilterContext context)
         requestStream.applicationOwner = authContext.subscriber;
         requestStream.tier = authContext.tier;
         requestStream.continuedOnThrottleOut = !authContext.stopOnQuotaReach;
+        requestStream.apiPublisher = authContext.apiPublisher;
+        requestStream.keyType = authContext.keyType;
     }
     requestStream.userAgent = request.userAgent;
     requestStream.clientIp = getClientIp(request);
@@ -67,14 +69,11 @@ function generateRequestEvent(http:Request request, http:FilterContext context)
 
     //todo: hostname verify
     requestStream.hostName = "localhost";   //todo:get the host properl
-    //todo:check if apiPublisher comes in keyValidation context
-    requestStream.apiPublisher = "admin@carbon.super";   //todo:get publisher properly
     requestStream.method = request.method;
     //todo:verify resourcepath and resourceTemplate
     requestStream.resourceTemplate = "resourcePath";
     requestStream.resourcePath = getResourceConfigAnnotation
     (reflect:getResourceAnnotations(context.serviceType, context.resourceName)).path;
-    requestStream.keyType = "PRODUCTION";
     //todo:random uuid taken from throttle filter
     requestStream.correlationID = "71c60dbd-b2be-408d-9e2e-4fd11f60cfbc";
     requestStream.requestCount = 1;
@@ -106,10 +105,10 @@ function getEventData(EventDTO dto) returns string {
 function writeEventToFile(EventDTO eventDTO) {
     //todo:batch events to reduce IO cost
     int currentTime = getCurrentTime();
-    if (initializingTime == 0 ) {
+    if (initializingTime == 0) {
         initializingTime = getCurrentTime();
     }
-    if ( currentTime - initializingTime > 60*1000*10) {
+    if (currentTime - initializingTime > 60*1000*10) {
         var result = rotateFile("api-usage-data.dat");
         initializingTime = getCurrentTime();
         match result {
@@ -117,7 +116,7 @@ function writeEventToFile(EventDTO eventDTO) {
                 log:printInfo("File rotated successfully.");
             }
             error err => {
-                log:printError("Error occurred while rotating the file: " + err.message);
+                log:printError("Error occurred while rotating the file: ", err = err);
             }
         }
     }
@@ -136,10 +135,10 @@ function writeEventToFile(EventDTO eventDTO) {
     } finally {
         match charChannel.close() {
             error sourceCloseError => {
-                log:printError("Error occured while closing the channel: " + sourceCloseError.message);
+                log:printError("Error occured while closing the channel: ", err = sourceCloseError);
             }
             () => {
-                log:printInfo("Source channel closed successfully.");
+                log:printDebug("Source channel closed successfully.");
             }
         }
     }
diff --git a/components/micro-gateway-core/src/main/ballerina/gateway/usagedata_uploader.bal b/components/micro-gateway-core/src/main/ballerina/gateway/usagedata_uploader.bal
index 69c4ed5b5d..b228eab4b8 100644
--- a/components/micro-gateway-core/src/main/ballerina/gateway/usagedata_uploader.bal
+++ b/components/micro-gateway-core/src/main/ballerina/gateway/usagedata_uploader.bal
@@ -19,7 +19,6 @@ function multipartSender(string file) returns http:Response {
     request.addHeader("FileName", file);
     request.addHeader("Accept", "application/json");
     request.setBodyParts(bodyParts);
-    io:println(request);
     var returnResponse = clientEP->post("/micro-gateway/v0.9/usage/upload-file",request);
 
     match returnResponse {
@@ -28,7 +27,7 @@ function multipartSender(string file) returns http:Response {
             string errorMessage = "Error occurred while sending multipart request: SC " + 500;
             response.setPayload(errorMessage);
             response.statusCode = 500;
-            log:printError(errorMessage);
+            log:printError(errorMessage, err = err);
             return response;
         }
         http:Response returnResult => {
diff --git a/components/micro-gateway-core/src/main/ballerina/gateway/utils/utils.bal b/components/micro-gateway-core/src/main/ballerina/gateway/utils/utils.bal
index 2c115524aa..89b4759284 100644
--- a/components/micro-gateway-core/src/main/ballerina/gateway/utils/utils.bal
+++ b/components/micro-gateway-core/src/main/ballerina/gateway/utils/utils.bal
@@ -381,7 +381,7 @@ public function rotateFile(string fileName) returns string|error  {
     internal:Path fileToZip = new(fileName);
     match internal:compress(fileToZip, zipLocation) {
         error compressError => {
-            log:printError("Error occurred while compressing the file: " + compressError.message);
+            log:printError("Error occurred while compressing the file: ", err = compressError);
             return compressError;
         }
         () => {