Replace gson converter with kotlinx serialization

gradle/libs.versions.toml

@@ -127,7 +127,7 @@ okhttp-bom = { group = "com.squareup.okhttp3", name = "okhttp-bom", version.ref
 okhttp-core = { group = "com.squareup.okhttp3", name = "okhttp" }
 okhttp-logging = { group = "com.squareup.okhttp3", name = "logging-interceptor" }
 retrofit-core = { group = "com.squareup.retrofit2", name = "retrofit", version.ref = "retrofit" }
-retrofit-converter-gson = { group = "com.squareup.retrofit2", name = "converter-gson", version.ref = "retrofit" }
+retrofit-converter-kotlinx-serialization = { group = "com.squareup.retrofit2", name = "converter-kotlinx-serialization", version.ref = "retrofit" }
 coil-kt = { group = "io.coil-kt", name = "coil", version.ref = "coil" }
 coil-kt-compose = { group = "io.coil-kt", name = "coil-compose", version.ref = "coil" }
 coil-kt-svg = { group = "io.coil-kt", name = "coil-svg", version.ref = "coil" }

network/build.gradle.kts

@@ -46,7 +46,7 @@ dependencies {
 
     // ... Retrofit
     implementation(libs.retrofit.core)
-    implementation(libs.retrofit.converter.gson)
+    implementation(libs.retrofit.converter.kotlinx.serialization)
 
     // ... Coil
     implementation(libs.coil.kt)

network/src/main/kotlin/dev/atick/network/di/retrofit/ConverterModule.kt

@@ -0,0 +1,34 @@
+package dev.atick.network.di.retrofit
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
+import retrofit2.Converter
+import retrofit2.converter.kotlinx.serialization.asConverterFactory
+import javax.inject.Singleton
+
+/**
+ * Module for providing [Converter.Factory].
+ */
+@Module
+@InstallIn(SingletonComponent::class)
+object ConverterModule {
+    /**
+     * Provides kotlinx.serialization [Converter.Factory].
+     *
+     * @return [Converter.Factory].
+     */
+    @Provides
+    @Singleton
+    fun provideConverter(): Converter.Factory {
+        val json = Json {
+            ignoreUnknownKeys = true
+        }
+        return json.asConverterFactory(
+            "application/json; charset=UTF8".toMediaType(),
+        )
+    }
+}

network/src/main/kotlin/dev/atick/network/di/retrofit/RetrofitModule.kt

@@ -23,8 +23,8 @@ import dagger.hilt.components.SingletonComponent
 import dev.atick.network.BuildConfig
 import dev.atick.network.di.okhttp.OkHttpClientModule
 import okhttp3.OkHttpClient
+import retrofit2.Converter
 import retrofit2.Retrofit
-import retrofit2.converter.gson.GsonConverterFactory
 import javax.inject.Singleton
 
 /**
@@ -41,14 +41,14 @@ object RetrofitModule {
     /**
      * Provides [Retrofit].
      *
-     * @param converterFactory [GsonConverterFactory].
+     * @param converterFactory [Converter.Factory].
      * @param okHttpClient [OkHttpClient].
      * @return [Retrofit].
      */
     @Singleton
     @Provides
     fun provideRetrofitClient(
-        converterFactory: GsonConverterFactory,
+        converterFactory: Converter.Factory,
         okHttpClient: OkHttpClient,
     ): Retrofit {
         return Retrofit.Builder()

network/src/main/kotlin/dev/atick/network/models/NetworkPost.kt

@@ -16,6 +16,8 @@
 
 package dev.atick.network.models
 
+import kotlinx.serialization.Serializable
+
 /**
  * Data class representing a network post retrieved from a remote source.
  *
@@ -24,6 +26,7 @@ package dev.atick.network.models
  * @property url The URL associated with the network post.
  * @property thumbnailUrl The URL of the thumbnail image associated with the network post.
  */
+@Serializable
 data class NetworkPost(
     val id: Int,
     val title: String,