diff --git a/IONFileTransferLib/Delegates/IONFLTRUploadDelegate.swift b/IONFileTransferLib/Delegates/IONFLTRUploadDelegate.swift
index 39d9cdb..dfe5bd8 100644
--- a/IONFileTransferLib/Delegates/IONFLTRUploadDelegate.swift
+++ b/IONFileTransferLib/Delegates/IONFLTRUploadDelegate.swift
@@ -10,6 +10,10 @@ class IONFLTRUploadDelegate: IONFLTRBaseDelegate {
 
     /// The total number of bytes sent during the upload.
     private var totalBytesSent: Int = 0
+    
+    /// The data received from the server during the upload.
+    private lazy var receivedData: Data = Data()
+
 
     /// Initializes a new instance of the `IONFLTRUploadDelegate` class.
     ///
@@ -43,7 +47,36 @@ extension IONFLTRUploadDelegate: URLSessionDataDelegate {
     ///   - task: The `URLSessionTask` that completed.
     ///   - error: The error that occurred, if any.
     func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: (any Error)?) {
-        super.handleCompletion(task: task, error: error)
+        if let error = error {
+            super.handleCompletion(task: task, error: error)
+            return
+        }
+        
+        let response = task.response as? HTTPURLResponse
+        let statusCode = response?.statusCode ?? 0
+        let responseData = String(data: receivedData, encoding: .utf8)
+        let headers = response?.allHeaderFields.reduce(into: [String: String]()) { result, element in
+            if let key = element.key as? String, let value = element.value as? String {
+                result[key] = value
+            }
+        } ?? [:]
+        
+        if (200...299).contains(statusCode) {
+            publisher.sendSuccess(
+                totalBytes: totalBytesSent,
+                responseCode: statusCode,
+                responseBody: responseData,
+                headers: headers
+            )
+        } else {
+            publisher.sendFailure(
+                IONFLTRException.httpError(
+                    responseCode: statusCode,
+                    responseBody: nil,
+                    headers: headers
+                )
+            )
+        }
     }
     
     /// Handles HTTP redirection for a task.
@@ -65,20 +98,6 @@ extension IONFLTRUploadDelegate: URLSessionDataDelegate {
     ///   - dataTask: The `URLSessionDataTask` that received the data.
     ///   - data: The data received from the server.
     func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data) {
-        let response = dataTask.response as? HTTPURLResponse
-        let statusCode = response?.statusCode ?? 0
-        let responseData = String(data: data, encoding: .utf8)
-        let headers = response?.allHeaderFields.reduce(into: [String: String]()) { result, element in
-            if let key = element.key as? String, let value = element.value as? String {
-                result[key] = value
-            }
-        } ?? [:]
-
-        publisher.sendSuccess(
-            totalBytes: totalBytesSent,
-            responseCode: statusCode,
-            responseBody: responseData,
-            headers: headers
-        )
+        receivedData.append(data)
     }
 }
diff --git a/IONFileTransferLibTests/Delegates/IONFLTRUploadDelegateTests.swift b/IONFileTransferLibTests/Delegates/IONFLTRUploadDelegateTests.swift
index cf89b67..c54760d 100644
--- a/IONFileTransferLibTests/Delegates/IONFLTRUploadDelegateTests.swift
+++ b/IONFileTransferLibTests/Delegates/IONFLTRUploadDelegateTests.swift
@@ -93,35 +93,36 @@ final class IONFLTRUploadDelegateTests: XCTestCase {
         waitForExpectations(timeout: 1)
     }
 
-    func testDidReceiveData_shouldCallSendSuccess() {
-        class MockDataTask: URLSessionDataTask, @unchecked Sendable {
-            private let mockResponse: URLResponse?
-
-            override var response: URLResponse? {
-                return mockResponse
-            }
-
-            init(response: URLResponse?) {
-                self.mockResponse = response
-                super.init()
-            }
-        }
+    func testDidReceiveData_shouldAccumulateData() {
+        let data1 = "Part1".data(using: .utf8)!
+        let data2 = "Part2".data(using: .utf8)!
         
-        let expectedResponseBody = "Success!"
-        let data = expectedResponseBody.data(using: .utf8)!
         let task = URLSession.shared.dataTask(with: URL(string: "https://example.com")!)
 
-        let urlResponse = HTTPURLResponse(url: task.originalRequest!.url!, statusCode: 200, httpVersion: nil, headerFields: ["Content-Type": "text/plain"])
-        let dataTask = MockDataTask(response: urlResponse)
+        delegate.urlSession(URLSession.shared, dataTask: task, didReceive: data1)
+        delegate.urlSession(URLSession.shared, dataTask: task, didReceive: data2)
+
+        let response = HTTPURLResponse(
+            url: task.originalRequest!.url!,
+            statusCode: 200,
+            httpVersion: nil,
+            headerFields: ["Content-Type": "text/plain"]
+        )
+        
+        class MockTask: URLSessionTask, @unchecked Sendable {
+            let mockResponse: URLResponse?
+            override var response: URLResponse? { return mockResponse }
+            init(response: URLResponse?) { self.mockResponse = response }
+        }
 
-        delegate.urlSession(URLSession.shared, dataTask: dataTask, didReceive: data)
+        let mockTask = MockTask(response: response)
+        delegate.urlSession(URLSession.shared, task: mockTask, didCompleteWithError: nil)
 
         let result = mockPublisher.successCalled
-        XCTAssertEqual(result?.0, 0) // totalBytesSent should still be 0
-        XCTAssertEqual(result?.1, 200)
-        XCTAssertEqual(result?.2, expectedResponseBody)
+        XCTAssertEqual(result?.2, "Part1Part2")
         XCTAssertEqual(result?.3["Content-Type"], "text/plain")
     }
+
     
     func testDidCompleteWithError_Non2xxStatusCode() {
         class MockURLSessionTask: URLSessionTask, @unchecked Sendable {
@@ -152,9 +153,32 @@ final class IONFLTRUploadDelegateTests: XCTestCase {
         )
     }
     
-    func testDidCompleteWithError_withoutError_shouldNotSendFailure() {
-        delegate.urlSession(URLSession.shared, task: URLSessionDataTask(), didCompleteWithError: nil)
+    func testDidCompleteWithSuccess_shouldSendSuccess() {
+        let responseBody = "Uploaded!"
+        let data = responseBody.data(using: .utf8)!
         
-        XCTAssertNil(mockPublisher.failureCalled)
+        let task = URLSession.shared.dataTask(with: URL(string: "https://example.com")!)
+        delegate.urlSession(URLSession.shared, dataTask: task, didReceive: data)
+
+        class MockTask: URLSessionTask {
+            let mockResponse: URLResponse?
+            override var response: URLResponse? { return mockResponse }
+            init(response: URLResponse?) { self.mockResponse = response }
+        }
+
+        let mockResponse = HTTPURLResponse(
+            url: URL(string: "https://example.com")!,
+            statusCode: 201,
+            httpVersion: nil,
+            headerFields: ["X-Custom": "value"]
+        )
+        let mockTask = MockTask(response: mockResponse)
+
+        delegate.urlSession(URLSession.shared, task: mockTask, didCompleteWithError: nil)
+
+        XCTAssertEqual(mockPublisher.successCalled?.0, 0) // totalBytesSent is default 0
+        XCTAssertEqual(mockPublisher.successCalled?.1, 201)
+        XCTAssertEqual(mockPublisher.successCalled?.2, responseBody)
+        XCTAssertEqual(mockPublisher.successCalled?.3["X-Custom"], "value")
     }
 }
diff --git a/scripts/build.sh b/scripts/build.sh
index 72bda82..74951db 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -1,26 +1,37 @@
-cd ..
+BUILD_FOLDER="build"
+BUILD_SCHEME="IONFileTransferLib"
+FRAMEWORK_NAME="IONFileTransferLib"
+SIMULATOR_ARCHIVE_PATH="${BUILD_FOLDER}/iphonesimulator.xcarchive"
+IOS_DEVICE_ARCHIVE_PATH="${BUILD_FOLDER}/iphoneos.xcarchive"
 
-rm -rf build
+rm -rf "${FRAMEWORK_NAME}.zip"
+rm -rf ${BUILD_FOLDER}
 
 xcodebuild archive \
--scheme IONFileTransferLib \
--configuration Release \
--destination 'generic/platform=iOS Simulator' \
--archivePath './scripts/build/IONFileTransferLib.framework-iphonesimulator.xcarchive' \
-SKIP_INSTALL=NO \
-BUILD_LIBRARIES_FOR_DISTRIBUTION=YES
-
+	-scheme ${BUILD_SCHEME} \
+	-configuration Release \
+	-destination 'generic/platform=iOS Simulator' \
+	-archivePath "./${SIMULATOR_ARCHIVE_PATH}/" \
+	SKIP_INSTALL=NO \
+	BUILD_LIBRARIES_FOR_DISTRIBUTION=YES
 
 xcodebuild archive \
--scheme IONFileTransferLib \
--configuration Release \
--destination 'generic/platform=iOS' \
--archivePath './scripts/build/IONFileTransferLib.framework-iphoneos.xcarchive' \
-SKIP_INSTALL=NO \
-BUILD_LIBRARIES_FOR_DISTRIBUTION=YES
-
+	-scheme ${BUILD_SCHEME} \
+	-configuration Release \
+	-destination 'generic/platform=iOS' \
+	-archivePath "./${IOS_DEVICE_ARCHIVE_PATH}/" \
+	SKIP_INSTALL=NO \
+	BUILD_LIBRARIES_FOR_DISTRIBUTION=YES
 
 xcodebuild -create-xcframework \
--framework './scripts/build/IONFileTransferLib.framework-iphonesimulator.xcarchive/Products/Library/Frameworks/IONFileTransferLib.framework' \
--framework './scripts/build/IONFileTransferLib.framework-iphoneos.xcarchive/Products/Library/Frameworks/IONFileTransferLib.framework' \
--output './scripts/build/IONFileTransferLib.xcframework'
+	-framework "./${SIMULATOR_ARCHIVE_PATH}/Products/Library/Frameworks/${FRAMEWORK_NAME}.framework" \
+		-debug-symbols "${PWD}/${SIMULATOR_ARCHIVE_PATH}/dSYMs/${FRAMEWORK_NAME}.framework.dSYM" \
+	-framework "./${IOS_DEVICE_ARCHIVE_PATH}/Products/Library/Frameworks/${FRAMEWORK_NAME}.framework" \
+		-debug-symbols "${PWD}/${IOS_DEVICE_ARCHIVE_PATH}/dSYMs/${FRAMEWORK_NAME}.framework.dSYM" \
+	-output "./${BUILD_FOLDER}/${FRAMEWORK_NAME}.xcframework"
+
+cp LICENSE ${BUILD_FOLDER}
+
+cd "./${BUILD_FOLDER}"
+
+zip -r "${FRAMEWORK_NAME}.zip" "${FRAMEWORK_NAME}.xcframework" LICENSE