# Advanced Android Networking (Android)

> OkHttp Interceptors, Authentication, Cache, Certificate Pinning, WebSocket, GraphQL with Apollo Client

- 13 interview questions
- Mid-Level
- [Interview Questions: Android](https://sharpskill.dev/en/technologies/android/interview-questions.md)

## 1. What is an Interceptor in OkHttp?

**Answer**

An Interceptor is a powerful OkHttp mechanism that allows intercepting, observing and modifying HTTP requests and responses. It executes between the application and the network, allowing adding headers, logging, handling authentication, etc.

## 2. How do you add an Interceptor to an OkHttpClient?

**Answer**

Use the OkHttpClient builder with the addInterceptor() method for application interceptors or addNetworkInterceptor() for network interceptors. Interceptors are executed in the order they are added.

## 3. What is a Logging Interceptor used for?

**Answer**

The Logging Interceptor (HttpLoggingInterceptor) allows logging all HTTP requests and responses for debugging. You can configure the log level: NONE, BASIC (request line), HEADERS (with headers), BODY (with full body).

## 10 more questions available

- How do you create an Authentication Interceptor to add a Bearer token?
- How do you add a custom header to all requests with an Interceptor?

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## Other Android interview topics

- [Android Fundamentals](https://sharpskill.dev/en/technologies/android/interview-questions/android-fundamentals.md): 24 questions, Junior
- [Android UI and Resources](https://sharpskill.dev/en/technologies/android/interview-questions/android-ui-and-resources.md): 30 questions, Junior
- [Android Lifecycle](https://sharpskill.dev/en/technologies/android/interview-questions/android-lifecycle.md): 30 questions, Junior
- [Android Navigation](https://sharpskill.dev/en/technologies/android/interview-questions/android-navigation.md): 26 questions, Junior
- [Android Data Management](https://sharpskill.dev/en/technologies/android/interview-questions/android-data-management.md): 29 questions, Junior
- [Android Networking](https://sharpskill.dev/en/technologies/android/interview-questions/android-networking.md): 29 questions, Junior
- [Android Testing](https://sharpskill.dev/en/technologies/android/interview-questions/android-testing.md): 28 questions, Junior
- [Android Gradle](https://sharpskill.dev/en/technologies/android/interview-questions/android-gradle.md): 26 questions, Junior
- [Kotlin Language Essentials for Android](https://sharpskill.dev/en/technologies/android/interview-questions/android-kotlin-language-essentials.md): 24 questions, Junior
- [Room Database](https://sharpskill.dev/en/technologies/android/interview-questions/android-room-database.md): 25 questions, Mid-Level
- [Background Work](https://sharpskill.dev/en/technologies/android/interview-questions/android-background-work.md): 18 questions, Mid-Level
- [Jetpack Compose](https://sharpskill.dev/en/technologies/android/interview-questions/android-compose.md): 28 questions, Mid-Level
- [Permissions and Device Features](https://sharpskill.dev/en/technologies/android/interview-questions/android-permissions-and-device.md): 21 questions, Mid-Level
- [Firebase for Android](https://sharpskill.dev/en/technologies/android/interview-questions/android-firebase.md): 23 questions, Mid-Level
- [Android MVVM Architecture](https://sharpskill.dev/en/technologies/android/interview-questions/android-mvvm-architecture.md): 18 questions, Mid-Level
- [Kotlin Collections and Operators](https://sharpskill.dev/en/technologies/android/interview-questions/android-kotlin-collections-operators.md): 20 questions, Mid-Level
- [Kotlin Coroutines and Flow](https://sharpskill.dev/en/technologies/android/interview-questions/android-kotlin-coroutines-flow.md): 20 questions, Mid-Level
- [Android Dependency Injection](https://sharpskill.dev/en/technologies/android/interview-questions/android-dependency-injection.md): 15 questions, Mid-Level
- [Android MVI Architecture](https://sharpskill.dev/en/technologies/android/interview-questions/android-mvi-architecture.md): 17 questions, Mid-Level
- [Android Clean Architecture](https://sharpskill.dev/en/technologies/android/interview-questions/android-clean-architecture.md): 21 questions, Senior
- [Android Compose Advanced](https://sharpskill.dev/en/technologies/android/interview-questions/android-compose-advanced.md): 17 questions, Senior
- [Android Performance and Monitoring](https://sharpskill.dev/en/technologies/android/interview-questions/android-performance-monitoring.md): 13 questions, Senior
- [Android Security and Privacy](https://sharpskill.dev/en/technologies/android/interview-questions/android-security-privacy.md): 18 questions, Senior
- [Android CI/CD and Release](https://sharpskill.dev/en/technologies/android/interview-questions/android-cicd-release.md): 15 questions, Senior
- [Android UX and Form Factors](https://sharpskill.dev/en/technologies/android/interview-questions/android-ux-form-factors.md): 18 questions, Senior
- [Android Testing Advanced](https://sharpskill.dev/en/technologies/android/interview-questions/android-testing-advanced.md): 18 questions, Senior

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