diff --git a/.codecov.yml b/.codecov.yml
new file mode 100644
index 0000000..d2f3bd5
--- /dev/null
+++ b/.codecov.yml
@@ -0,0 +1,34 @@
+codecov:
+  require_ci_to_pass: yes
+  notify:
+    wait_for_ci: yes
+
+coverage:
+  precision: 2
+  round: down
+  range: "70...100"
+  status:
+    project:
+      default:
+        target: 45%
+        threshold: 1%
+        base: auto
+    patch:
+      default:
+        target: 80%
+        threshold: 5%
+
+comment:
+  layout: "reach,diff,flags,tree,footer"
+  behavior: default
+  require_changes: no
+  require_base: no
+  require_head: yes
+
+ignore:
+  - "cmd/**/*"
+  - "examples/**/*"
+  - "server/**/*"
+  - "testing/**/*"
+  - "**/*_test.go"
+  - "*.md"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 307796b..f2663c9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,17 +2,120 @@ name: CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [ master, main, develop ]
   pull_request:
-    branches: [ master ]
+    branches: [ master, main, develop ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
-  test:
-    name: Test
+  # Quick validation - fail fast on obvious issues
+  validate:
+    name: Quick Validation
     runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.23'
+    
+    - name: Cache Go modules
+      uses: actions/cache@v4
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
+    
+    - name: Download dependencies
+      run: go mod download && go mod verify
+    
+    - name: Check formatting
+      run: |
+        if [ "$(gofmt -s -l . | grep -v vendor | wc -l)" -gt 0 ]; then
+          echo "Code formatting issues found:"
+          gofmt -s -d . | grep -v vendor
+          exit 1
+        fi
+    
+    - name: Lint
+      uses: golangci/golangci-lint-action@v4
+      with:
+        version: latest
+        args: --timeout=5m --fix=false
+
+  # Test on primary Go version
+  test:
+    name: Test (Go 1.23)
+    runs-on: ubuntu-latest
+    needs: validate
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.23'
+    
+    - name: Cache Go modules
+      uses: actions/cache@v4
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-1.23-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-1.23-
+    
+    - name: Download dependencies
+      run: go mod download
+    
+    - name: Run tests with coverage
+      run: go test -v -race -covermode=atomic -coverprofile=coverage.out ./...
+    
+    - name: Generate coverage report
+      run: go tool cover -html=coverage.out -o coverage.html
+    
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v4
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        files: ./coverage.out
+        flags: unittests
+        name: codecov-umbrella
+        fail_ci_if_error: true
+    
+    - name: Archive coverage
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: coverage-report
+        path: |
+          coverage.out
+          coverage.html
+        retention-days: 30
+
+  # Test on multiple Go versions (after primary test passes)
+  test-matrix:
+    name: Test (Go ${{ matrix.go-version }})
+    runs-on: ${{ matrix.os }}
+    needs: test
     strategy:
+      fail-fast: true  # Stop on first failure
       matrix:
-        go-version: ['1.21', '1.22', '1.23']
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        go-version: ['1.21', '1.22']
+        exclude:
+          - os: macos-latest
+            go-version: '1.21'
+          - os: windows-latest
+            go-version: '1.21'
     
     steps:
     - name: Checkout code
@@ -26,46 +129,53 @@ jobs:
     - name: Cache Go modules
       uses: actions/cache@v4
       with:
-        path: ~/go/pkg/mod
-        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ matrix.go-version }}-${{ hashFiles('**/go.sum') }}
         restore-keys: |
-          ${{ runner.os }}-go-
+          ${{ runner.os }}-go-${{ matrix.go-version }}-
     
     - name: Download dependencies
       run: go mod download
     
     - name: Run tests
-      run: go test -v -race -coverprofile=coverage.txt -covermode=atomic ./...
-    
-    - name: Upload coverage
-      uses: codecov/codecov-action@v4
-      with:
-        file: ./coverage.txt
-        flags: unittests
-        name: codecov-umbrella
+      run: go test -v -race ./...
 
-  lint:
-    name: Lint
+  # Code quality - only run if tests pass
+  sonarcloud:
+    name: Code Quality (SonarCloud)
     runs-on: ubuntu-latest
+    needs: test
+    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
     
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
-    
-    - name: Set up Go
-      uses: actions/setup-go@v5
       with:
-        go-version: '1.23'
+        fetch-depth: 0
     
-    - name: Run golangci-lint
-      uses: golangci/golangci-lint-action@v8
+    - name: Download coverage from test job
+      uses: actions/download-artifact@v4
       with:
-        version: v2.2
-        args: --timeout=5m ./cmd/onvif-cli ./cmd/onvif-quick ./cmd/onvif-server ./discovery/... ./internal/... .
+        name: coverage-report
+    
+    - name: SonarCloud Scan
+      uses: SonarSource/sonarcloud-github-action@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+      with:
+        args: >
+          -Dsonar.projectKey=0x524a_go-onvif
+          -Dsonar.organization=0x524a
+          -Dsonar.go.coverage.reportPaths=coverage.out
 
+  # Build verification
   build:
     name: Build
     runs-on: ubuntu-latest
+    needs: test
     
     steps:
     - name: Checkout code
@@ -76,7 +186,18 @@ jobs:
       with:
         go-version: '1.23'
     
-    - name: Build
+    - name: Cache Go modules
+      uses: actions/cache@v4
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-1.23-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-1.23-
+    
+    - name: Download dependencies
+      run: go mod download
+    
+    - name: Build main packages
       run: go build -v ./...
     
     - name: Build examples
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
new file mode 100644
index 0000000..d0551b2
--- /dev/null
+++ b/.github/workflows/coverage.yml
@@ -0,0 +1,42 @@
+name: Additional Coverage Reports
+
+on:
+  workflow_run:
+    workflows: [CI]
+    types: [completed]
+    branches: [master, main]
+
+jobs:
+  # Generate additional coverage analysis if CI passed
+  coverage-analysis:
+    name: Coverage Analysis
+    runs-on: ubuntu-latest
+    if: github.event.workflow_run.conclusion == 'success'
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    
+    - name: Download artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: coverage-report
+    
+    - name: Check coverage percentage
+      run: |
+        if [ -f coverage.out ]; then
+          coverage=$(go tool cover -func=coverage.out | grep total | awk '{print $3}' | sed 's/%//')
+          echo "Coverage: $coverage%"
+          # Set threshold to 40%
+          if (( $(echo "$coverage < 40" | bc -l) )); then
+            echo "⚠️  Coverage below 40% threshold: $coverage%"
+          else
+            echo "✅ Coverage above threshold: $coverage%"
+          fi
+        fi
+    
+    - name: Upload coverage badge
+      continue-on-error: true
+      run: |
+        # Optional: Update badges or notifications
+        echo "Coverage analysis complete"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..72a177d
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,40 @@
+name: Extra Tests
+
+on:
+  workflow_dispatch:  # Manual trigger only
+  schedule:
+    - cron: '0 2 * * *'  # Daily at 2 AM UTC
+
+jobs:
+  # Run tests on other Go versions as manual/scheduled job
+  test-older-versions:
+    name: Test on Go ${{ matrix.go-version }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        os: [ubuntu-latest]
+        go-version: ['1.20', '1.19']
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ matrix.go-version }}
+    
+    - name: Cache Go modules
+      uses: actions/cache@v4
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ matrix.go-version }}-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-${{ matrix.go-version }}-
+    
+    - name: Download dependencies
+      run: go mod download
+    
+    - name: Run tests
+      run: go test -v -race ./...
diff --git a/README.md b/README.md
index e5942ec..7d2d77c 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 [![Go Reference](https://pkg.go.dev/badge/github.com/0x524a/onvif-go.svg)](https://pkg.go.dev/github.com/0x524a/onvif-go)
 [![Go Report Card](https://goreportcard.com/badge/github.com/0x524a/onvif-go)](https://goreportcard.com/report/github.com/0x524a/onvif-go)
+[![codecov](https://codecov.io/gh/0x524a/onvif-go/branch/master/graph/badge.svg)](https://codecov.io/gh/0x524a/onvif-go)
+[![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=0x524a_go-onvif&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=0x524a_go-onvif)
 [![License](https://img.shields.io/github/license/0x524a/onvif-go)](LICENSE)
 [![GitHub stars](https://img.shields.io/github/stars/0x524a/onvif-go)](https://github.com/0x524a/onvif-go/stargazers)
 [![GitHub issues](https://img.shields.io/github/issues/0x524a/onvif-go)](https://github.com/0x524a/onvif-go/issues)
diff --git a/device_additional_test.go b/device_additional_test.go
index f76a94e..c3e051d 100644
--- a/device_additional_test.go
+++ b/device_additional_test.go
@@ -17,14 +17,14 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 				Content []byte `xml:",innerxml"`
 			} `xml:"Body"`
 		}
-		decoder.Decode(&envelope)
+		_ = decoder.Decode(&envelope)
 		bodyContent := string(envelope.Body.Content)
 
 		w.Header().Set("Content-Type", "application/soap+xml")
 
 		switch {
 		case strings.Contains(bodyContent, "GetGeoLocation"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+			_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:tt="http://www.onvif.org/ver10/schema">
 	<s:Body>
 		<tds:GetGeoLocationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -38,7 +38,7 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetGeoLocation"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+			_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetGeoLocationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -46,7 +46,7 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "DeleteGeoLocation"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+			_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:DeleteGeoLocationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -54,7 +54,7 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetDPAddresses"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetDPAddressesResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -71,7 +71,7 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetDPAddresses"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetDPAddressesResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -79,7 +79,7 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetAccessPolicy"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetAccessPolicyResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -92,7 +92,7 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetAccessPolicy"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetAccessPolicyResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -100,7 +100,7 @@ func newMockDeviceAdditionalServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetWsdlUrl"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetWsdlUrlResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
diff --git a/device_certificates_test.go b/device_certificates_test.go
index d0edad7..f4391c9 100644
--- a/device_certificates_test.go
+++ b/device_certificates_test.go
@@ -14,8 +14,8 @@ func newMockDeviceCertificatesServer() *httptest.Server {
 		w.Header().Set("Content-Type", "application/soap+xml")
 
 		// Parse request to determine which operation
-		buf := make([]byte, r.ContentLength)
-		r.Body.Read(buf)
+	buf := make([]byte, r.ContentLength)
+	_, _ = r.Body.Read(buf)
 		requestBody := string(buf)
 
 		var response string
diff --git a/device_extended_test.go b/device_extended_test.go
index cbc3759..f30dec8 100644
--- a/device_extended_test.go
+++ b/device_extended_test.go
@@ -17,14 +17,14 @@ func newMockDeviceExtendedServer() *httptest.Server {
 				Content []byte `xml:",innerxml"`
 			} `xml:"Body"`
 		}
-		decoder.Decode(&envelope)
+		_ = decoder.Decode(&envelope)
 		bodyContent := string(envelope.Body.Content)
 
 		w.Header().Set("Content-Type", "application/soap+xml")
 
 		switch {
 		case strings.Contains(bodyContent, "AddScopes"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:AddScopesResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -32,7 +32,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "RemoveScopes"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:RemoveScopesResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -42,7 +42,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetScopes"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetScopesResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -50,7 +50,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetRelayOutputs"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetRelayOutputsResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -66,7 +66,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetRelayOutputSettings"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetRelayOutputSettingsResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -74,7 +74,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetRelayOutputState"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetRelayOutputStateResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -82,7 +82,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SendAuxiliaryCommand"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SendAuxiliaryCommandResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -92,7 +92,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetSystemLog"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetSystemLogResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -104,7 +104,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetSystemFactoryDefault"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetSystemFactoryDefaultResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -112,7 +112,7 @@ func newMockDeviceExtendedServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "StartFirmwareUpgrade"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:StartFirmwareUpgradeResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
diff --git a/device_security_test.go b/device_security_test.go
index a40dc95..9164d62 100644
--- a/device_security_test.go
+++ b/device_security_test.go
@@ -17,14 +17,14 @@ func newMockDeviceSecurityServer() *httptest.Server {
 				Content []byte `xml:",innerxml"`
 			} `xml:"Body"`
 		}
-		decoder.Decode(&envelope)
+		_ = decoder.Decode(&envelope)
 		bodyContent := string(envelope.Body.Content)
 
 		w.Header().Set("Content-Type", "application/soap+xml")
 
 		switch {
 		case strings.Contains(bodyContent, "GetRemoteUser"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetRemoteUserResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -38,7 +38,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetRemoteUser"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetRemoteUserResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -46,7 +46,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetIPAddressFilter"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetIPAddressFilterResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -64,7 +64,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 		case strings.Contains(bodyContent, "SetIPAddressFilter"), 
 		     strings.Contains(bodyContent, "AddIPAddressFilter"),
 		     strings.Contains(bodyContent, "RemoveIPAddressFilter"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetIPAddressFilterResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -72,7 +72,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetZeroConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetZeroConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -86,7 +86,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetZeroConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetZeroConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -94,7 +94,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetPasswordComplexityConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetPasswordComplexityConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -109,7 +109,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetPasswordComplexityConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetPasswordComplexityConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -117,7 +117,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetPasswordHistoryConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetPasswordHistoryConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -128,7 +128,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetPasswordHistoryConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetPasswordHistoryConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
@@ -136,7 +136,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "GetAuthFailureWarningConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:GetAuthFailureWarningConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl">
@@ -148,7 +148,7 @@ func newMockDeviceSecurityServer() *httptest.Server {
 </s:Envelope>`))
 
 		case strings.Contains(bodyContent, "SetAuthFailureWarningConfiguration"):
-			w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+		_, _ = w.Write([]byte(`<?xml version="1.0" encoding="UTF-8"?>
 <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
 	<s:Body>
 		<tds:SetAuthFailureWarningConfigurationResponse xmlns:tds="http://www.onvif.org/ver10/device/wsdl"/>
diff --git a/device_storage_test.go b/device_storage_test.go
index 9841f6f..7aa18ca 100644
--- a/device_storage_test.go
+++ b/device_storage_test.go
@@ -13,8 +13,8 @@ func newMockDeviceStorageServer() *httptest.Server {
 		w.Header().Set("Content-Type", "application/soap+xml")
 
 		// Parse request to determine which operation
-		buf := make([]byte, r.ContentLength)
-		r.Body.Read(buf)
+	buf := make([]byte, r.ContentLength)
+	_, _ = r.Body.Read(buf)
 		requestBody := string(buf)
 
 		var response string
diff --git a/device_wifi_test.go b/device_wifi_test.go
index b93e4aa..9fe7cf3 100644
--- a/device_wifi_test.go
+++ b/device_wifi_test.go
@@ -13,8 +13,8 @@ func newMockDeviceWiFiServer() *httptest.Server {
 		w.Header().Set("Content-Type", "application/soap+xml")
 
 		// Parse request to determine which operation
-		buf := make([]byte, r.ContentLength)
-		r.Body.Read(buf)
+	buf := make([]byte, r.ContentLength)
+	_, _ = r.Body.Read(buf)
 		requestBody := string(buf)
 
 		var response string
diff --git a/sonar-project.properties b/sonar-project.properties
new file mode 100644
index 0000000..69b4347
--- /dev/null
+++ b/sonar-project.properties
@@ -0,0 +1,29 @@
+sonar.projectKey=0x524a_go-onvif
+sonar.organization=0x524a
+
+# Project metadata
+sonar.projectName=go-onvif
+sonar.projectVersion=1.0.0
+
+# Source code location
+sonar.sources=.
+sonar.exclusions=**/vendor/**,**/*_test.go,**/examples/**,**/cmd/**,**/server/**,**/testing/**
+
+# Test settings
+sonar.tests=.
+sonar.test.inclusions=**/*_test.go
+sonar.test.exclusions=**/vendor/**
+
+# Go specific settings
+sonar.language=go
+sonar.go.coverage.reportPaths=coverage.out
+sonar.go.tests.reportPaths=test-report.json
+
+# Source encoding
+sonar.sourceEncoding=UTF-8
+
+# Coverage exclusions
+sonar.coverage.exclusions=**/cmd/**,**/examples/**,**/server/**,**/testing/**,**/*_test.go
+
+# Duplications
+sonar.cpd.exclusions=**/*_test.go