Add X-Source header to Gravatar REST API request

demo-app/src/main/java/com/gravatar/demoapp/MainActivity.kt

@@ -13,7 +13,7 @@ class MainActivity : ComponentActivity() {
  super.onCreate(savedInstanceState)
 
  // Initialize the Gravatar SDK with the API key if it is available
- BuildConfig.DEMO_GRAVATAR_API_KEY?.let { Gravatar.initialize(it) }
+ BuildConfig.DEMO_GRAVATAR_API_KEY?.let { Gravatar.apiKey(it).context(applicationContext) }
 
  setContent {
  DemoGravatarApp()

docs/get-started/get-started.md

@@ -63,7 +63,8 @@ android {
 Then you can access the API key in your app's code like this:
 
 ```kotlin
-Gravatar.initialize(BuildConfig.GRAVATAR_API_KEY)
+Gravatar.apiKey(BuildConfig.GRAVATAR_API_KEY)
+ .context(appContext) // Optional but highly encouraged.
 ```
 
 # Usage

gravatar/api/gravatar.api

@@ -136,7 +136,8 @@ public final class com/gravatar/DefaultAvatarOption$Wavatar : com/gravatar/Defau
 
 public final class com/gravatar/Gravatar {
  public static final field INSTANCE Lcom/gravatar/Gravatar;
- public final fun initialize (Ljava/lang/String;)V
+ public final fun apiKey (Ljava/lang/String;)Lcom/gravatar/Gravatar;
+ public final fun context (Landroid/content/Context;)Lcom/gravatar/Gravatar;
 }
 
 public final class com/gravatar/GravatarConstants {

gravatar/src/main/java/com/gravatar/Gravatar.kt

@@ -1,5 +1,7 @@
 package com.gravatar
 
+import android.content.Context
+import android.content.pm.PackageManager
 import com.gravatar.di.container.GravatarSdkContainer
 
 /**
@@ -9,9 +11,29 @@ public object Gravatar {
  /**
  * Initializes the Gravatar SDK with the given API key.
  *
- * @param gravatarApiKey The API key to use when making requests to the Gravatar backend.
+ * @param apiKey The API key to use when making requests to the Gravatar backend.
  */
- public fun initialize(gravatarApiKey: String) {
- GravatarSdkContainer.instance.apiKey = gravatarApiKey
+ public fun apiKey(apiKey: String): Gravatar {
+ GravatarSdkContainer.instance.apiKey = apiKey
+ return this
+ }
+
+ /**
+ * Initializes the Gravatar SDK with the given context.
+ * The context is used to get the application name.
+ *
+ * @param context The context from the app.
+ */
+ public fun context(context: Context): Gravatar {
+ GravatarSdkContainer.instance.appName = getApplicationName(context)
+ return this
+ }
+
+ private fun getApplicationName(context: Context): String {
+ val applicationInfo = context.packageManager.getApplicationInfo(
+ context.packageName,
+ PackageManager.GET_META_DATA,
+ )
+ return context.packageManager.getApplicationLabel(applicationInfo).toString()
  }
 }

gravatar/src/main/java/com/gravatar/di/container/GravatarSdkContainer.kt

@@ -33,6 +33,7 @@ internal class GravatarSdkContainer private constructor() {
  val dispatcherIO = Dispatchers.IO
 
  var apiKey: String? = null
+ var appName: String? = null
 
  fun getGravatarV3Service(okHttpClient: OkHttpClient? = null, oauthToken: String? = null): GravatarApi {
  return getRetrofitApiV3Builder().apply {

gravatar/src/main/java/com/gravatar/services/interceptors/SdkVersionInterceptor.kt

@@ -1,16 +1,18 @@
 package com.gravatar.services.interceptors
 
 import com.gravatar.BuildConfig
+import com.gravatar.di.container.GravatarSdkContainer
 import okhttp3.Interceptor
 import okhttp3.Response
 
 internal class SdkVersionInterceptor : Interceptor {
  override fun intercept(chain: Interceptor.Chain): Response {
  return chain.proceed(
- chain.request().newBuilder()
- .addHeader("X-Platform", "Android")
- .addHeader("X-SDK-Version", BuildConfig.SDK_VERSION)
- .build(),
+ chain.request().newBuilder().apply {
+ addHeader("X-Platform", "Android")
+ addHeader("X-SDK-Version", BuildConfig.SDK_VERSION)
+ GravatarSdkContainer.instance.appName?.let { addHeader("X-Source", it) }
+ }.build(),
  )
  }
 }

gravatar/src/test/java/com/gravatar/GravatarTest.kt

@@ -1,6 +1,11 @@
 package com.gravatar
 
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import android.content.pm.PackageManager
 import io.mockk.coVerify
+import io.mockk.every
+import io.mockk.mockk
 import org.junit.Rule
 import org.junit.Test
 
@@ -12,8 +17,26 @@ class GravatarTest {
  fun `given an api key when initialize method is invoked with it then it should be set internally`() {
  val apiKey = "API_KEY"
 
- Gravatar.initialize(apiKey)
+ Gravatar.apiKey(apiKey)
 
  coVerify(exactly = 1) { containerRule.gravatarSdkContainerMock.apiKey = apiKey }
  }
+
+ @Test
+ fun `given a context when initialize method is invoked then the app name is extracted`() {
+ val appName = "Gravatar APP"
+ val packageName = "com.gravatar"
+ val context = mockk<Context>()
+ val packageManager = mockk<PackageManager>()
+ val applicationInfo = mockk<ApplicationInfo>()
+
+ every { context.packageManager } returns packageManager
+ every { context.packageName } returns packageName
+ every { packageManager.getApplicationInfo(packageName, PackageManager.GET_META_DATA) } returns applicationInfo
+ every { packageManager.getApplicationLabel(applicationInfo) } returns appName
+
+ Gravatar.context(context)
+
+ coVerify(exactly = 1) { containerRule.gravatarSdkContainerMock.appName = appName }
+ }
 }