feat: better DX

README.md

@@ -9,7 +9,7 @@ feature flagging and experimentation for Eppo customers. An API key is required
 
 ```groovy
 dependencies {
-  implementation 'cloud.eppo:android-sdk:4.0.0'
+  implementation 'cloud.eppo:android-sdk:4.1.0'
 }
 
 dependencyResolutionManagement {

eppo/build.gradle

@@ -7,7 +7,7 @@ plugins {
 }
 
 group = "cloud.eppo"
-version = "4.0.1-SNAPSHOT"
+version = "4.1.0-SNAPSHOT"
 
 android {
     buildFeatures.buildConfig true

eppo/src/androidTest/java/cloud/eppo/android/EppoClientTest.java

@@ -88,9 +88,7 @@ private void initClient(
     setBaseClientHttpClientOverrideField(httpClientOverride);
 
     CompletableFuture<Void> futureClient =
-        new EppoClient.Builder()
-            .application(ApplicationProvider.getApplicationContext())
-            .apiKey(apiKey)
+        new EppoClient.Builder(apiKey, ApplicationProvider.getApplicationContext())
             .isGracefulMode(isGracefulMode)
             .host(host)
             .assignmentLogger(mockAssignmentLogger)

eppo/src/main/java/cloud/eppo/android/EppoClient.java

@@ -62,9 +62,7 @@ public static EppoClient init(
       @NonNull String host,
       @Nullable AssignmentLogger assignmentLogger,
       boolean isGracefulMode) {
-    return new Builder()
-        .application(application)
-        .apiKey(apiKey)
+    return new Builder(apiKey, application)
         .host(host)
         .assignmentLogger(assignmentLogger)
         .isGracefulMode(isGracefulMode)
@@ -81,9 +79,7 @@ public static CompletableFuture<EppoClient> initAsync(
       @NonNull String host,
       @Nullable AssignmentLogger assignmentLogger,
       boolean isGracefulMode) {
-    return new Builder()
-        .application(application)
-        .apiKey(apiKey)
+    return new Builder(apiKey, application)
         .host(host)
         .assignmentLogger(assignmentLogger)
         .isGracefulMode(isGracefulMode)
@@ -111,8 +107,8 @@ protected EppoValue getTypedAssignment(
 
   public static class Builder {
     @NonNull private String host = DEFAULT_HOST;
-    @Nullable private Application application;
-    @Nullable private String apiKey;
+    private final Application application;
+    private final String apiKey;
     @Nullable private AssignmentLogger assignmentLogger;
     @Nullable private ConfigurationStore configStore;
     private boolean isGracefulMode = DEFAULT_IS_GRACEFUL_MODE;
@@ -121,14 +117,9 @@ public static class Builder {
     private boolean offlineMode = false;
     private CompletableFuture<Configuration> initialConfiguration;
 
-    public Builder apiKey(String apiKey) {
-      this.apiKey = apiKey;
-      return this;
-    }
-
-    public Builder application(Application application) {
+    public Builder(@NonNull String apiKey, @NonNull Application application) {
       this.application = application;
-      return this;
+      this.apiKey = apiKey;
     }
 
     public Builder host(String host) {
@@ -161,12 +152,16 @@ public Builder offlineMode(boolean offlineMode) {
       return this;
     }
 
-    public Builder withInitialFlagConfigResponse(
-        String initialFlagConfigResponse, boolean isConfigObfuscated) {
+    public Builder initialConfiguration(byte[] initialFlagConfigResponse) {
       this.initialConfiguration =
           CompletableFuture.completedFuture(
-              Configuration.builder(initialFlagConfigResponse.getBytes(), isConfigObfuscated)
-                  .build());
+              Configuration.builder(initialFlagConfigResponse, true).build());
+      return this;
+    }
+
+    public Builder initialConfiguration(CompletableFuture<byte[]> initialFlagConfigResponse) {
+      this.initialConfiguration =
+          initialFlagConfigResponse.thenApply(ic -> Configuration.builder(ic, true).build());
       return this;
     }
 

example/src/main/java/cloud/eppo/androidexample/SecondActivity.java

@@ -35,9 +35,7 @@ protected void onCreate(Bundle savedInstanceState) {
         Bundle extras = getIntent().getExtras();
         boolean offlineMode = extras != null && extras.getBoolean(this.getPackageName() + ".offlineMode", false);
 
-        new EppoClient.Builder()
-                .application(getApplication())
-                .apiKey(API_KEY)
+        new EppoClient.Builder(API_KEY, getApplication())
                 .isGracefulMode(true)
                 .offlineMode(offlineMode)
                 .forceReinitialize(true)