Agent skill

networking

Retrofit, OkHttp, REST APIs, JSON serialization, network security.

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Install this agent skill to your Project

npx add-skill https://github.com/pluginagentmarketplace/custom-plugin-android/tree/main/skills/networking

SKILL.md

API Integration Skill

Quick Start

Retrofit Setup

kotlin
interface UserApi {
    @GET("/users/{id}")
    suspend fun getUser(@Path("id") id: Int): UserDto
    
    @POST("/users")
    suspend fun createUser(@Body user: UserDto): UserDto
}

val retrofit = Retrofit.Builder()
    .baseUrl("https://api.example.com/")
    .addConverterFactory(GsonConverterFactory.create())
    .build()

val api = retrofit.create(UserApi::class.java)

OkHttp Configuration

kotlin
val client = OkHttpClient.Builder()
    .addInterceptor(HttpLoggingInterceptor())
    .connectTimeout(30, TimeUnit.SECONDS)
    .certificatePinner(CertificatePinner.Builder()
        .add("api.example.com", "sha256/...").build())
    .build()

Error Handling

kotlin
sealed class Result<T> {
    data class Success<T>(val data: T) : Result<T>()
    data class Error<T>(val exception: Exception) : Result<T>()
}

Key Concepts

HTTP Methods

  • GET: Fetch data
  • POST: Create resource
  • PUT/PATCH: Update
  • DELETE: Remove

Retrofit Features

  • Type-safe interfaces
  • Automatic serialization
  • Suspend function support
  • Error callbacks

Network Security

  • HTTPS/TLS enforcement
  • SSL pinning
  • Certificate validation
  • Secure token storage

Best Practices

✅ Use HTTPS always ✅ Implement SSL pinning ✅ Handle errors gracefully ✅ Optimize request/response size ✅ Cache when possible

Resources

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