Reuse OkHttp instance

app/src/main/java/gq/kirmanak/mealient/data/AppDb.kt

@@ -6,7 +6,6 @@ import androidx.room.TypeConverters
 import gq.kirmanak.mealient.data.impl.RoomTypeConverters
 import gq.kirmanak.mealient.data.recipes.db.RecipeDao
 import gq.kirmanak.mealient.data.recipes.db.entity.*
-import javax.inject.Singleton
 
 @Database(
     version = 1,
@@ -14,7 +13,6 @@ import javax.inject.Singleton
     exportSchema = false
 )
 @TypeConverters(RoomTypeConverters::class)
-@Singleton
 abstract class AppDb : RoomDatabase() {
     abstract fun recipeDao(): RecipeDao
 }

app/src/main/java/gq/kirmanak/mealient/data/AppModule.kt

@@ -9,19 +9,35 @@ import dagger.Provides
 import dagger.hilt.InstallIn
 import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
+import gq.kirmanak.mealient.data.impl.OkHttpBuilder
+import kotlinx.serialization.json.Json
+import okhttp3.OkHttpClient
+import javax.inject.Singleton
 
 @Module
 @InstallIn(SingletonComponent::class)
 interface AppModule {
     companion object {
         @Provides
-        fun createDb(@ApplicationContext context: Context): AppDb {
-            return Room.databaseBuilder(context, AppDb::class.java, "app.db").build()
-        }
+        @Singleton
+        fun createDb(@ApplicationContext context: Context): AppDb =
+            Room.databaseBuilder(context, AppDb::class.java, "app.db").build()
 
         @Provides
-        fun createSharedPreferences(@ApplicationContext context: Context): SharedPreferences {
-            return PreferenceManager.getDefaultSharedPreferences(context)
+        @Singleton
+        fun createSharedPreferences(@ApplicationContext context: Context): SharedPreferences =
+            PreferenceManager.getDefaultSharedPreferences(context)
+
+        @Provides
+        @Singleton
+        fun createOkHttp(okHttpBuilder: OkHttpBuilder): OkHttpClient =
+            okHttpBuilder.buildOkHttp()
+
+        @Provides
+        @Singleton
+        fun createJson(): Json = Json {
+            coerceInputValues = true
+            ignoreUnknownKeys = true
         }
     }
 }

app/src/main/java/gq/kirmanak/mealient/data/auth/impl/AuthOkHttpInterceptor.kt

@@ -1,18 +1,29 @@
 package gq.kirmanak.mealient.data.auth.impl
 
+import gq.kirmanak.mealient.data.auth.AuthStorage
+import kotlinx.coroutines.runBlocking
 import okhttp3.Interceptor
 import okhttp3.Response
+import timber.log.Timber
+import javax.inject.Inject
 
 const val AUTHORIZATION_HEADER = "Authorization"
 
-class AuthOkHttpInterceptor(token: String) : Interceptor {
-    private val headerValue = "Bearer $token"
-
+class AuthOkHttpInterceptor @Inject constructor(
+    private val authStorage: AuthStorage
+) : Interceptor {
     override fun intercept(chain: Interceptor.Chain): Response {
-        val newRequest = chain.request()
-            .newBuilder()
-            .addHeader(AUTHORIZATION_HEADER, headerValue)
-            .build()
-        return chain.proceed(newRequest)
+        Timber.v("intercept() called with: chain = $chain")
+        val token = runBlocking { authStorage.getToken() }
+        Timber.d("intercept: token = $token")
+        val request = if (token.isNullOrBlank()) {
+            chain.request()
+        } else {
+            chain.request()
+                .newBuilder()
+                .addHeader(AUTHORIZATION_HEADER, "Bearer $token")
+                .build()
+        }
+        return chain.proceed(request)
     }
 }

app/src/main/java/gq/kirmanak/mealient/data/impl/OkHttpBuilder.kt

@@ -8,12 +8,14 @@ import okhttp3.logging.HttpLoggingInterceptor
 import timber.log.Timber
 import javax.inject.Inject
 
-class OkHttpBuilder @Inject constructor() {
-    fun buildOkHttp(token: String?): OkHttpClient {
-        Timber.v("buildOkHttp() called with: token = $token")
+class OkHttpBuilder @Inject constructor(
+    private val authOkHttpInterceptor: AuthOkHttpInterceptor
+) {
+    fun buildOkHttp(): OkHttpClient {
+        Timber.v("buildOkHttp() called")
         val builder = OkHttpClient.Builder()
         if (BuildConfig.DEBUG) builder.addNetworkInterceptor(buildLoggingInterceptor())
-        if (token != null) builder.addNetworkInterceptor(AuthOkHttpInterceptor(token))
+        builder.addNetworkInterceptor(authOkHttpInterceptor)
         return builder.build()
     }
 

app/src/main/java/gq/kirmanak/mealient/data/impl/RetrofitBuilder.kt

@@ -4,26 +4,23 @@ import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFact
 import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.json.Json
 import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
 import retrofit2.Retrofit
 import timber.log.Timber
 import javax.inject.Inject
 
 @ExperimentalSerializationApi
-class RetrofitBuilder @Inject constructor(private val okHttpBuilder: OkHttpBuilder) {
-    private val json by lazy {
-        Json {
-            coerceInputValues = true
-            ignoreUnknownKeys = true
-        }
-    }
-
-    fun buildRetrofit(baseUrl: String, token: String? = null): Retrofit {
-        Timber.v("buildRetrofit() called with: baseUrl = $baseUrl, token = $token")
+class RetrofitBuilder @Inject constructor(
+    private val okHttpClient: OkHttpClient,
+    private val json: Json
+) {
+    fun buildRetrofit(baseUrl: String): Retrofit {
+        Timber.v("buildRetrofit() called with: baseUrl = $baseUrl")
         val contentType = "application/json".toMediaType()
         val converterFactory = json.asConverterFactory(contentType)
         return Retrofit.Builder()
             .baseUrl(baseUrl)
-            .client(okHttpBuilder.buildOkHttp(token))
+            .client(okHttpClient)
             .addConverterFactory(converterFactory)
             .build()
     }

app/src/main/java/gq/kirmanak/mealient/data/recipes/network/RecipeDataSourceImpl.kt

@@ -38,7 +38,7 @@ class RecipeDataSourceImpl @Inject constructor(
             val baseUrl = checkNotNull(authRepo.getBaseUrl()) { "Base url is null" }
             val token = checkNotNull(authRepo.getToken()) { "Token is null" }
             Timber.d("requestRecipes: baseUrl = $baseUrl, token = $token")
-            val retrofit = retrofitBuilder.buildRetrofit(baseUrl, token)
+            val retrofit = retrofitBuilder.buildRetrofit(baseUrl)
             val createdService = retrofit.create(RecipeService::class.java)
             _recipeService = createdService
             createdService

app/src/test/java/gq/kirmanak/mealient/data/impl/OkHttpBuilderTest.kt

@@ -2,8 +2,10 @@ package gq.kirmanak.mealient.data.impl
 
 import com.google.common.truth.Truth.assertThat
 import dagger.hilt.android.testing.HiltAndroidTest
+import gq.kirmanak.mealient.data.auth.AuthStorage
 import gq.kirmanak.mealient.data.auth.impl.AUTHORIZATION_HEADER
 import gq.kirmanak.mealient.test.AuthImplTestData.TEST_TOKEN
+import gq.kirmanak.mealient.test.AuthImplTestData.TEST_URL
 import gq.kirmanak.mealient.test.MockServerTest
 import okhttp3.OkHttpClient
 import okhttp3.Request
@@ -17,16 +19,20 @@ class OkHttpBuilderTest : MockServerTest() {
     @Inject
     lateinit var subject: OkHttpBuilder
 
+    @Inject
+    lateinit var authStorage: AuthStorage
+
     @Test
     fun `when token null then no auth header`() {
-        val client = subject.buildOkHttp(null)
+        val client = subject.buildOkHttp()
         val header = sendRequestAndExtractAuthHeader(client)
         assertThat(header).isNull()
     }
 
     @Test
     fun `when token isn't null then auth header contains token`() {
-        val client = subject.buildOkHttp(TEST_TOKEN)
+        authStorage.storeAuthData(TEST_TOKEN, TEST_URL)
+        val client = subject.buildOkHttp()
         val header = sendRequestAndExtractAuthHeader(client)
         assertThat(header).isEqualTo("Bearer $TEST_TOKEN")
     }