Reduced unneeded code bloat

README.md

@@ -16,7 +16,7 @@ To add `elevenlabs-api` to your Maven project, use:
 <dependency>
     <groupId>net.andrewcpu</groupId>
     <artifactId>elevenlabs-api</artifactId>
-    <version>2.1</version>
+    <version>2.7.2</version>
 </dependency>
 ```
 The most up-to date package information can be found on the [Packages tab](https://github.com/AndrewCPU/elevenlabs-api/packages/)
@@ -32,50 +32,13 @@ To access your ElevenLabs API key, head to the [official website](https://eleven
 To set up your ElevenLabs API key, you must register it with the ElevenLabsAPI Java API like below:
 ```java
 ElevenLabs.setApiKey("YOUR_API_KEY_HERE");
+
+
+ElevenLabs.setDefaultModel("eleven_monolingual_v1"); // Optional, defaults to: "eleven_monolingual_v1"
 ```
 *For any public repository security, you should store your API key in an environment variable, or external from your source code.*
 
 - - -
-
-<!-- TOC -->
-### Table of Contents
-  * [Getting Started](#getting-started)
-    * [Installation](#installation)
-    * [Setting up your API Key](#setting-up-your-api-key)
-  * [Voices](#voices)
-    * [Accessing your List of Available Voices](#accessing-your-list-of-available-voices)
-    * [Accessing the Default Voice Settings](#accessing-the-default-voice-settings)
-    * [Getting a Voice by ID](#getting-a-voice-by-id)
-    * [Deleting a voice](#deleting-a-voice)
-    * [Retrieving an Updated VoiceSettings for a Voice](#retrieving-an-updated-voicesettings-for-a-voice)
-    * [Updating the VoiceSettings for a Voice](#updating-the-voicesettings-for-a-voice)
-    * [Editing a Voice](#editing-a-voice)
-    * [Creating a Voice](#creating-a-voice)
-    * [Generating Audio](#generating-audio)
-  * [Samples](#samples)
-    * [Accessing Voice Samples](#accessing-voice-samples)
-    * [Downloading a Sample](#downloading-a-sample)
-    * [Deleting a Sample](#deleting-a-sample)
-  * [History](#history)
-    * [Getting Generation History](#getting-generation-history)
-    * [Getting a History Item](#getting-a-history-item)
-    * [Downloading History](#downloading-history)
-    * [Deleting a HistoryItem](#deleting-a-historyitem)
-    * [Requesting the Voice for a HistoryItem](#requesting-the-voice-for-a-historyitem)
-    * [Downloading a HistoryItem Audio](#downloading-a-historyitem-audio)
-  * [User Management](#user-management)
-    * [Getting your Subscription](#getting-your-subscription)
-    * [Getting your User](#getting-your-user)
-  * [Exceptions](#exceptions)
-    * [*ElevenLabsAPINotInitiatedException*](#elevenlabsapinotinitiatedexception)
-    * [*ElevenLabsValidationException*](#elevenlabsvalidationexception)
-* [Misc](#misc)
-
-* [Links to ElevenLabs](#links-to-elevenlabs)
-    * [**ElevenLabs Website**: https://elevenlabs.io](#elevenlabs-website--httpselevenlabsio)
-    * [**ElevenLabs API Documentation**: https://api.elevenlabs.io/docs](#elevenlabs-api-documentation--httpsapielevenlabsiodocs)
-<!-- TOC -->
-
 ## Links to ElevenLabs
 ### **ElevenLabs Website**: https://elevenlabs.io
 ### **ElevenLabs API Documentation**: https://api.elevenlabs.io/docs
@@ -163,23 +126,201 @@ builder.withLabel("accent", "American");
 voice = builder.create();
 ```
 
-### Generating Audio
+### Generating Audio (TTS + STS)
 To generate an audio file with a given `Voice`, you can utilize the `Voice#generate(...)` functions.
 Depending on how you access your `Voice`, (with or without settings), will decide whether you can use the implicit `voiceSettings` or if you have to specify the `VoiceSettings` object to use. Unless explicitly requesting the `Voice` without settings, every `Voice` object SHOULD contain its default `VoiceSettings`.
 ```java
-Voice voice;
-File file = voice.generate(String text);
-File file = voice.generate(String text, VoiceSettings settings);
-File file = voice.generate(String text, String model, VoiceSettings settings);
-File file = voice.generate(String text, String model);
 
-InputStream inputStream = voice.generateStream(String text);
-InputStream inputStream = voice.generateStream(String text, VoiceSettings settings);
-InputStream inputStream = voice.generateStream(String text, String model, VoiceSettings settings);
-InputStream inputStream = voice.generateStream(String text, String model);
+Voice voice;
+
+File file = voice.generate("Hello world!", "my_favorite_model");
+...
+//Available Functions:
+public File generate(String text, String model);
+
+public File generate(String text, String model, VoiceSettings settings);
+
+public File generate(String text, String model, VoiceSettings settings, GeneratedAudioOutputFormat outputFormat, StreamLatencyOptimization streamLatencyOptimization);
+
+public File generate(String text, String model, VoiceSettings settings, GeneratedAudioOutputFormat outputFormat);
+
+public File generate(String text, VoiceSettings settings, GeneratedAudioOutputFormat outputFormat);
+
+public File generate(String text, VoiceSettings settings, StreamLatencyOptimization streamLatencyOptimization);
+
+public File generate(String text, VoiceSettings settings, GeneratedAudioOutputFormat outputFormat, StreamLatencyOptimization streamLatencyOptimization);
+
+public File generate(String text, GeneratedAudioOutputFormat outputFormat, StreamLatencyOptimization streamLatencyOptimization);
+
+public File generate(String text, StreamLatencyOptimization streamLatencyOptimization);
+
+public File generate(String text, VoiceSettings settings);
+
+public File generate(String text);
+
+public InputStream generateStream(String text, String model);
+
+public InputStream generateStream(String text, String model, VoiceSettings settings);
+
+public InputStream generateStream(String text, VoiceSettings settings);
+
+public InputStream generateStream(String text);
+
+public InputStream generateStream(String text, String model, GeneratedAudioOutputFormat generatedAudioOutputFormat, StreamLatencyOptimization streamLatencyOptimization);
+
+public InputStream generateStream(String text, String model, GeneratedAudioOutputFormat generatedAudioOutputFormat, StreamLatencyOptimization streamLatencyOptimization, VoiceSettings settings);
+
+public InputStream generateStream(String text, VoiceSettings settings, GeneratedAudioOutputFormat generatedAudioOutputFormat, StreamLatencyOptimization streamLatencyOptimization);
+
+public InputStream generateStream(String text, GeneratedAudioOutputFormat generatedAudioOutputFormat, StreamLatencyOptimization streamLatencyOptimization);
+
+public InputStream generateStream(String text, String model, StreamLatencyOptimization streamLatencyOptimization);
+
+public InputStream generateStream(String text, String model, StreamLatencyOptimization streamLatencyOptimization, VoiceSettings settings);
+
+public InputStream generateStream(String text, VoiceSettings settings, StreamLatencyOptimization streamLatencyOptimization);
+
+public InputStream generateStream(String text, StreamLatencyOptimization streamLatencyOptimization);
+
+public File speechToSpeech(File audioFile, StreamLatencyOptimization latencyOptimization, String modelId, VoiceSettings voiceSettings);
+
+public File speechToSpeech(File audioFile, StreamLatencyOptimization latencyOptimization, String modelId);
+
+public File speechToSpeech(File audioFile, String modelId);
+
+public InputStream speechToSpeechStream(File audioFile, StreamLatencyOptimization latencyOptimization, String modelId, VoiceSettings voiceSettings);
+
+public InputStream speechToSpeechStream(File audioFile, StreamLatencyOptimization latencyOptimization, String modelId);
+
+public InputStream speechToSpeechStream(File audioFile, String modelId);
+
 ```
 - - -
+## Audio Native Projects
+### Creating an Audio Native Project
+You can create audio native projects using the AudioNative API.
+```java
+CreateAudioEnabledProjectRequest request = new CreateAudioEnabledProjectRequest()
+        .setName("Project name")
+        .setImage("https://...com/img.png")
+        .setAuthor("Andrew")
+        .setSmall(true)
+        .setTextColor("red")
+        .setBackgroundColor("black")
+        .setSessionization(3)
+        .setVoiceId("aso23809")
+        .setModelId("my_favorite_model")
+        .setFile(new File("input.dat"))
+        .setAutoConvert(true);
 
+CreateAudioEnabledProjectModelResponse response = ElevenLabs.getAudioNativeAPI()
+                                                             .createAudioEnabledProject(request);
+```
+
+- - -
+## Projects
+## Create a project
+You can create a new project using the AddProjectRequest builder.
+```java
+AddProjectRequest request = new AddProjectRequest()
+                                .setName("name")
+        .setFromUrl("...")
+        .setFromDocument(new File("file.dat"))
+        .setDefaultTitleVoiceId("voiceA")
+        .setDefaultParagraphVoiceId("voiceB")
+        .setDefaultModelId("the_default_model_of_your_dreams")
+        .setProjectOutputQuality(ProjectOutputQuality.STANDARD)
+        .setTitle("Big Title")
+        .setAuthor("Best Author")
+        .setIsbnNumber("THE. ISBN.")
+        .setAcxVolumeNormalization(true);
+
+Project project = Project.addProject(request);
+
+```
+
+## Get a Project
+Get a project by it's specific project ID.
+```java
+Project project = Project.getProjectById(projectId);
+```
+
+## Get all Projects
+Get all of the projects associated with your account.
+```java
+List<Project> projects = Project.getProjects();
+```
+
+## Interacting with Projects
+```java
+Project project;
+// Delete a project
+String deleteResult = project.delete();
+
+// Convert a project
+String conversionResult = project.convertProject();
+
+//Get the project's snapshots.
+List<ProjectSnapshot> snapshots = project.getSnapshots();
+
+// Access your chapters from memory
+List<Chapter> chapters = project.getChapters();
+
+// Refresh your local Project's chapters from the API
+chapters = project.fetchUpdatedChapters(); // This will update the existing project object and return the list of new chapters 
+
+// Get a chapter by ID
+Chapter chapter = project.getChapterById(chapterId);
+
+// Delete a chapter
+String result = project.deleteChapter(chapter);
+
+// Convert a chapter
+String result = project.convertChapter(chapter);
+
+// Get chapter snapshots
+List<ChapterSnapshot> snapshots = project.getChapterSnapshots(chapter);
+
+```
+
+## Interacting with Chapters
+```java
+Project project;
+Chapter chapter = project.getChapterById("chapter_id");
+
+// Delete a chapter
+chapter.deleteChapter(project.getProjectId());
+
+// Convert a chapter
+chapter.convertChapter(project.getProjectId());
+
+// Get a chapter's snapshots
+List<ChapterSnapshot> snapshots = chapter.getChapterSnapshots(project.getProjectId());
+
+// 
+
+```
+
+## Accessing Snapshot Audio
+Accessing a ProjectSnapshot audio stream:
+```java
+Project project;
+List<ProjectSnapshot> projectSnapshots = project.getSnapshots();
+ProjectSnapshot first = projectSnapshots.get(0);
+InputStream audio = first.getAudioStream();
+```
+
+Accessing a ChapterSnapshot audio stream:
+```java
+Project project;
+Chapter chapter;
+List<ChapterSnapshot> chapterSnapshots = project.getChapterSnapshots(chapter);
+ChapterSnapshot first = chapterSnapshots.get(0);
+InputStream audio = first.getAudioStream();
+```
+
+Both ProjectSnapshot and ChapterSnapshot are of type Snapshot.
+- - -
 ## Samples
 A `Sample` is used as the training data for a given `Voice` model.
 ### Accessing Voice Samples
@@ -248,6 +389,10 @@ A `HistoryItem` is a previous TTS generation. You can download the generation as
 HistoryItem item;
 File file = item.downloadAudio();
 ```
+- - -
+### Projects
+The `Projects`
+
 - - -
 
 ## User Management
@@ -278,6 +423,11 @@ If you like what you see, give it a star! :)
 
 - - -
 
+## Todo
+I will probably rework the 2 new builders I added when I added projects support. Their usage should be more clear, though the documentation covers their use cases I believe.
+
+- - - 
+
 #### Unit Testing
 Unit tests have been created, these endpoints are destructive and not included in the testing:
 * deleteHistoryItem - WONT TEST

pom.xml

@@ -60,7 +60,7 @@
 
     <groupId>net.andrewcpu</groupId>
     <artifactId>elevenlabs-api</artifactId>
-    <version>2.4</version>
+    <version>2.7.3-SNAPSHOT</version>
 
     <properties>
         <maven.compiler.source>11</maven.compiler.source>
@@ -80,17 +80,17 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.13.4.1</version>
+            <version>2.15.3</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-annotations</artifactId>
-            <version>2.13.4</version>
+            <version>2.15.3</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-core</artifactId>
-            <version>2.13.4</version>
+            <version>2.15.3</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
@@ -194,7 +194,6 @@
                     </execution>
                 </executions>
             </plugin>
-
         </plugins>
     </build>
 </project>

src/main/java/net/andrewcpu/elevenlabs/ElevenLabs.java

@@ -1,36 +1,7 @@
 package net.andrewcpu.elevenlabs;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import net.andrewcpu.elevenlabs.api.impl.*;
-import net.andrewcpu.elevenlabs.enums.GeneratedAudioOutputFormat;
-import net.andrewcpu.elevenlabs.enums.StreamLatencyOptimization;
-import net.andrewcpu.elevenlabs.model.history.History;
-import net.andrewcpu.elevenlabs.model.history.HistoryItem;
-import net.andrewcpu.elevenlabs.model.projects.Project;
-import net.andrewcpu.elevenlabs.model.request.TextToSpeechRequest;
-import net.andrewcpu.elevenlabs.model.response.CreateVoiceResponse;
-import net.andrewcpu.elevenlabs.model.response.GenerationTypeModel;
-import net.andrewcpu.elevenlabs.model.response.ProjectsModelResponse;
-import net.andrewcpu.elevenlabs.model.user.Subscription;
-import net.andrewcpu.elevenlabs.model.user.User;
-import net.andrewcpu.elevenlabs.model.voice.Voice;
-import net.andrewcpu.elevenlabs.model.voice.VoiceSettings;
-import net.andrewcpu.elevenlabs.requests.ElevenLabsRequest;
-import net.andrewcpu.elevenlabs.requests.history.*;
-import net.andrewcpu.elevenlabs.requests.models.GetModelsRequest;
-import net.andrewcpu.elevenlabs.requests.projects.GetProjectsRequest;
-import net.andrewcpu.elevenlabs.requests.samples.DeleteSampleRequest;
-import net.andrewcpu.elevenlabs.requests.samples.GetSampleRequest;
-import net.andrewcpu.elevenlabs.requests.tts.PostTextToSpeechRequest;
-import net.andrewcpu.elevenlabs.requests.tts.PostTextToSpeechStreamedRequest;
-import net.andrewcpu.elevenlabs.requests.user.GetSubscriptionRequest;
-import net.andrewcpu.elevenlabs.requests.user.GetUserRequest;
-import net.andrewcpu.elevenlabs.requests.voices.*;
-import net.andrewcpu.elevenlabs.util.ElevenNetworkUtil;
-
-import java.io.File;
-import java.io.InputStream;
-import java.util.List;
-import java.util.Map;
 
 public class ElevenLabs {
 	private static String API_KEY = null;
@@ -47,6 +18,15 @@ public class ElevenLabs {
 	public static String getApiKey() {
 		return API_KEY;
 	}
+	private static String defaultModel = "eleven_monolingual_v1";
+
+	public static String getDefaultModel() {
+		return defaultModel;
+	}
+
+	public static void setDefaultModel(String defaultModel) {
+		ElevenLabs.defaultModel = defaultModel;
+	}
 
 	public static void setApiKey(String apiKey) {
 		API_KEY = apiKey;

src/main/java/net/andrewcpu/elevenlabs/enums/HttpRequestType.java

@@ -1,5 +1,5 @@
 package net.andrewcpu.elevenlabs.enums;
 
 public enum HttpRequestType {
-	POST, GET, PUT, DELETE;
+	POST, GET, PUT, DELETE
 }

src/main/java/net/andrewcpu/elevenlabs/model/projects/Chapter.java

@@ -1,9 +1,27 @@
 package net.andrewcpu.elevenlabs.model.projects;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import net.andrewcpu.elevenlabs.ElevenLabs;
 import net.andrewcpu.elevenlabs.model.ElevenModel;
 
+import java.util.List;
+
 public class Chapter extends ElevenModel {
+
+	public String deleteChapter(String projectId) {
+		return ElevenLabs.getProjectsAPI().deleteChapter(projectId, chapterId);
+	}
+
+	public String convertChapter(String projectId) {
+		return ElevenLabs.getProjectsAPI().convertChapter(projectId, chapterId);
+	}
+
+	public List<ChapterSnapshot> getChapterSnapshots(String projectId) {
+		return ElevenLabs.getProjectsAPI().getChapterSnapshots(projectId, chapterId);
+	}
+
+
 	@JsonProperty("chapter_id")
 	private String chapterId;
 
@@ -24,4 +42,66 @@ public class Chapter extends ElevenModel {
 
 	@JsonProperty("statistics")
 	private Statistics statistics;
+
+	public Chapter() {
+	}
+
+	public Chapter(String chapterId, String name, long lastConversionDateUnix, double conversionProgress, boolean canBeDownloaded, String state, Statistics statistics) {
+		this.chapterId = chapterId;
+		this.name = name;
+		this.lastConversionDateUnix = lastConversionDateUnix;
+		this.conversionProgress = conversionProgress;
+		this.canBeDownloaded = canBeDownloaded;
+		this.state = state;
+		this.statistics = statistics;
+	}
+
+	@JsonIgnore
+	public String getChapterId() {
+		return chapterId;
+	}
+
+	@JsonIgnore
+	public String getName() {
+		return name;
+	}
+
+	@JsonIgnore
+	public long getLastConversionDateUnix() {
+		return lastConversionDateUnix;
+	}
+
+	@JsonIgnore
+	public double getConversionProgress() {
+		return conversionProgress;
+	}
+
+	@JsonIgnore
+	public boolean isCanBeDownloaded() {
+		return canBeDownloaded;
+	}
+
+	@JsonIgnore
+	public String getState() {
+		return state;
+	}
+
+	@JsonIgnore
+	public Statistics getStatistics() {
+		return statistics;
+	}
+
+	@Override
+	@JsonIgnore
+	public String toString() {
+		return "Chapter{" +
+				"chapterId='" + chapterId + '\'' +
+				", name='" + name + '\'' +
+				", lastConversionDateUnix=" + lastConversionDateUnix +
+				", conversionProgress=" + conversionProgress +
+				", canBeDownloaded=" + canBeDownloaded +
+				", state='" + state + '\'' +
+				", statistics=" + statistics +
+				'}';
+	}
 }

src/main/java/net/andrewcpu/elevenlabs/model/projects/ChapterSnapshot.java

@@ -2,34 +2,34 @@ package net.andrewcpu.elevenlabs.model.projects;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import net.andrewcpu.elevenlabs.ElevenLabs;
 import net.andrewcpu.elevenlabs.model.ElevenModel;
 
-public class ChapterSnapshot extends ElevenModel {
+import java.io.InputStream;
+
+public class ChapterSnapshot extends Snapshot {
+
+	@Override
+	public InputStream getAudioStream() {
+		return ElevenLabs.getProjectsAPI().getChapterSnapshotAudioStream(projectId, chapterId, chapterSnapshotId);
+	}
+
 	public ChapterSnapshot() {
+		super();
 	}
 
 	public ChapterSnapshot(String chapterSnapshotId, String projectId, String chapterId, long createdAtUnix, String name) {
+		super(projectId, createdAtUnix, name);
 		this.chapterSnapshotId = chapterSnapshotId;
-		this.projectId = projectId;
 		this.chapterId = chapterId;
-		this.createdAtUnix = createdAtUnix;
-		this.name = name;
 	}
 
 	@JsonProperty("chapter_snapshot_id")
 	private String chapterSnapshotId;
 
-	@JsonProperty("project_id")
-	private String projectId;
-
 	@JsonProperty("chapter_id")
 	private String chapterId;
 
-	@JsonProperty("created_at_unix")
-	private long createdAtUnix;
-
-	@JsonProperty("name")
-	private String name;
 
 	@JsonIgnore
 	public String getChapterSnapshotId() {
@@ -40,20 +40,6 @@ public class ChapterSnapshot extends ElevenModel {
 		return chapterId;
 	}
 
-	@JsonIgnore
-	public String getProjectId() {
-		return projectId;
-	}
-
-	@JsonIgnore
-	public long getCreatedAtUnix() {
-		return createdAtUnix;
-	}
-
-	@JsonIgnore
-	public String getName() {
-		return name;
-	}
 
 	@Override
 	@JsonIgnore

src/main/java/net/andrewcpu/elevenlabs/model/projects/Project.java

@@ -4,6 +4,7 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import net.andrewcpu.elevenlabs.ElevenLabs;
 import net.andrewcpu.elevenlabs.model.ElevenModel;
+import net.andrewcpu.elevenlabs.model.request.AddProjectRequest;
 
 import java.util.List;
 
@@ -13,6 +14,63 @@ public class Project extends ElevenModel {
 		return ElevenLabs.getProjectsAPI().getProjects();
 	}
 
+	public static Project addProject(AddProjectRequest builder) {
+		return ElevenLabs.getProjectsAPI().addProject(builder);
+	}
+
+	public static Project getProjectById(String projectId) {
+		return ElevenLabs.getProjectsAPI().getProject(projectId);
+	}
+
+	public List<Chapter> fetchUpdatedChapters() {
+		this.chapters = ElevenLabs.getProjectsAPI().getChapters(projectId);
+		return this.chapters;
+	}
+
+	public String deleteChapter(Chapter chapter) {
+		return chapter.deleteChapter(projectId);
+	}
+
+	public String convertChapter(Chapter chapter) {
+		return chapter.convertChapter(projectId);
+	}
+
+	public List<ChapterSnapshot> getChapterSnapshots(Chapter chapter) {
+		return chapter.getChapterSnapshots(projectId);
+	}
+
+	public String deleteProject() {
+		return ElevenLabs.getProjectsAPI().deleteProject(projectId);
+	}
+
+	public String convertProject() {
+		return ElevenLabs.getProjectsAPI().convertProject(projectId);
+	}
+
+	public List<ProjectSnapshot> getSnapshots() {
+		return ElevenLabs.getProjectsAPI().getProjectSnapshots(projectId);
+	}
+
+	public Chapter getChapterById(String chapterId) {
+		return ElevenLabs.getProjectsAPI().getChapterById(projectId, chapterId);
+	}
+
+	public Project(String projectId, String name, long unixCreateDate, String defaultTitleVoiceId, String defaultParagraphVoiceId, String defaultModelId, long lastConversionDateUnix, boolean canBeDownloaded, String state, List<Chapter> chapters) {
+		this.projectId = projectId;
+		this.name = name;
+		this.unixCreateDate = unixCreateDate;
+		this.defaultTitleVoiceId = defaultTitleVoiceId;
+		this.defaultParagraphVoiceId = defaultParagraphVoiceId;
+		this.defaultModelId = defaultModelId;
+		this.lastConversionDateUnix = lastConversionDateUnix;
+		this.canBeDownloaded = canBeDownloaded;
+		this.state = state;
+		this.chapters = chapters;
+	}
+
+	public Project() {
+	}
+
 	@JsonProperty("project_id")
 	private String projectId;
 

src/main/java/net/andrewcpu/elevenlabs/model/projects/ProjectSnapshot.java

@@ -2,55 +2,40 @@ package net.andrewcpu.elevenlabs.model.projects;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import net.andrewcpu.elevenlabs.ElevenLabs;
 import net.andrewcpu.elevenlabs.model.ElevenModel;
 
-public class ProjectSnapshot extends ElevenModel {
+import java.io.InputStream;
+
+public class ProjectSnapshot extends Snapshot {
+
+	@Override
+	public InputStream getAudioStream() {
+		return ElevenLabs.getProjectsAPI().getProjectSnapshotAudioStream(projectId, projectSnapshotId);
+	}
+
 	public ProjectSnapshot() {
+		super();
 	}
 
 	public ProjectSnapshot(String projectSnapshotId, String projectId, long createdAtUnix, String name) {
+		super(projectId, createdAtUnix, name);
 		this.projectSnapshotId = projectSnapshotId;
-		this.projectId = projectId;
-		this.createdAtUnix = createdAtUnix;
-		this.name = name;
 	}
 
 	@JsonProperty("project_snapshot_id")
 	private String projectSnapshotId;
 
-	@JsonProperty("project_id")
-	private String projectId;
-
-	@JsonProperty("created_at_unix")
-	private long createdAtUnix;
-
-	@JsonProperty("name")
-	private String name;
 
 	@JsonIgnore
 	public String getProjectSnapshotId() {
 		return projectSnapshotId;
 	}
 
-	@JsonIgnore
-	public String getProjectId() {
-		return projectId;
-	}
-
-	@JsonIgnore
-	public long getCreatedAtUnix() {
-		return createdAtUnix;
-	}
-
-	@JsonIgnore
-	public String getName() {
-		return name;
-	}
 
 	@Override
-	@JsonIgnore
 	public String toString() {
-		return "Snapshot{" +
+		return "ProjectSnapshot{" +
 				"projectSnapshotId='" + projectSnapshotId + '\'' +
 				", projectId='" + projectId + '\'' +
 				", createdAtUnix=" + createdAtUnix +

src/main/java/net/andrewcpu/elevenlabs/model/projects/Snapshot.java

@@ -0,0 +1,54 @@
+package net.andrewcpu.elevenlabs.model.projects;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import net.andrewcpu.elevenlabs.model.ElevenModel;
+
+import java.io.InputStream;
+
+public abstract class Snapshot extends ElevenModel {
+	@JsonProperty("project_id")
+	protected String projectId;
+
+	@JsonProperty("created_at_unix")
+	protected long createdAtUnix;
+
+	@JsonProperty("name")
+	protected String name;
+
+	public Snapshot(String projectId, long createdAtUnix, String name) {
+		this.projectId = projectId;
+		this.createdAtUnix = createdAtUnix;
+		this.name = name;
+	}
+
+	public Snapshot() {
+	}
+
+	public abstract InputStream getAudioStream();
+
+	@JsonIgnore
+	public String getProjectId() {
+		return projectId;
+	}
+
+	@JsonIgnore
+	public long getCreatedAtUnix() {
+		return createdAtUnix;
+	}
+
+	@JsonIgnore
+	public String getName() {
+		return name;
+	}
+
+	@Override
+	@JsonIgnore
+	public String toString() {
+		return "Snapshot{" +
+				"projectId='" + projectId + '\'' +
+				", createdAtUnix=" + createdAtUnix +
+				", name='" + name + '\'' +
+				'}';
+	}
+}

src/main/java/net/andrewcpu/elevenlabs/model/request/AddProjectRequest.java

@@ -3,7 +3,6 @@ package net.andrewcpu.elevenlabs.model.request;
 import net.andrewcpu.elevenlabs.enums.ProjectOutputQuality;
 
 import java.io.File;
-import java.lang.invoke.StringConcatFactory;
 
 public class AddProjectRequest {
 	private String name;

src/main/java/net/andrewcpu/elevenlabs/model/request/CreateAudioNativeProjectRequest.java

@@ -2,7 +2,6 @@ package net.andrewcpu.elevenlabs.model.request;
 
 import net.andrewcpu.elevenlabs.model.ElevenModel;
 
-import javax.management.loading.PrivateClassLoader;
 import java.io.File;
 
 public class CreateAudioNativeProjectRequest extends ElevenModel {

src/main/java/net/andrewcpu/elevenlabs/model/response/GenerationTypeModel.java

@@ -1,7 +1,6 @@
 package net.andrewcpu.elevenlabs.model.response;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import net.andrewcpu.elevenlabs.model.ElevenModel;
 import net.andrewcpu.elevenlabs.model.Language;

src/main/java/net/andrewcpu/elevenlabs/model/tuning/FineTuning.java

@@ -1,7 +1,6 @@
 package net.andrewcpu.elevenlabs.model.tuning;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import net.andrewcpu.elevenlabs.model.ElevenModel;
 

src/main/java/net/andrewcpu/elevenlabs/model/voice/Voice.java

@@ -167,28 +167,28 @@ public class Voice extends ElevenModel {
 		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId,text, model, outputFormat,StreamLatencyOptimization.getDefault(), settings);
 	}
 	public File generate(String text, VoiceSettings settings, GeneratedAudioOutputFormat outputFormat) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, "eleven_monolingual_v1", outputFormat,StreamLatencyOptimization.getDefault(), settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, ElevenLabs.getDefaultModel(), outputFormat,StreamLatencyOptimization.getDefault(), settings);
 	}
 	public File generate(String text, VoiceSettings settings, StreamLatencyOptimization streamLatencyOptimization) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, "eleven_monolingual_v1", GeneratedAudioOutputFormat.getDefault(),streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, ElevenLabs.getDefaultModel(), GeneratedAudioOutputFormat.getDefault(),streamLatencyOptimization, settings);
 	}
 
 	public File generate(String text, VoiceSettings settings, GeneratedAudioOutputFormat outputFormat, StreamLatencyOptimization streamLatencyOptimization) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, "eleven_monolingual_v1", outputFormat,streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, ElevenLabs.getDefaultModel(), outputFormat,streamLatencyOptimization, settings);
 	}
 	public File generate(String text, GeneratedAudioOutputFormat outputFormat, StreamLatencyOptimization streamLatencyOptimization) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, "eleven_monolingual_v1", outputFormat,streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, ElevenLabs.getDefaultModel(), outputFormat,streamLatencyOptimization, settings);
 	}
 	public File generate(String text, StreamLatencyOptimization streamLatencyOptimization) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, "eleven_monolingual_v1", GeneratedAudioOutputFormat.getDefault(), streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, ElevenLabs.getDefaultModel(), GeneratedAudioOutputFormat.getDefault(), streamLatencyOptimization, settings);
 	}
 
 	public File generate(String text, VoiceSettings settings)  {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, "eleven_monolingual_v1", settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, ElevenLabs.getDefaultModel(), settings);
 	}
 
 	public File generate(String text) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, "eleven_monolingual_v1", settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeech(voiceId, text, ElevenLabs.getDefaultModel(), settings);
 	}
 
 
@@ -202,11 +202,11 @@ public class Voice extends ElevenModel {
 	}
 
 	public InputStream generateStream(String text, VoiceSettings settings)  {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, "eleven_monolingual_v1", settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, ElevenLabs.getDefaultModel(), settings);
 	}
 
 	public InputStream generateStream(String text) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, "eleven_monolingual_v1", settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, ElevenLabs.getDefaultModel(), settings);
 	}
 
 	public InputStream generateStream(String text, String model, GeneratedAudioOutputFormat generatedAudioOutputFormat, StreamLatencyOptimization streamLatencyOptimization) {
@@ -218,11 +218,11 @@ public class Voice extends ElevenModel {
 	}
 
 	public InputStream generateStream(String text, VoiceSettings settings,  GeneratedAudioOutputFormat generatedAudioOutputFormat, StreamLatencyOptimization streamLatencyOptimization)  {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, "eleven_monolingual_v1", generatedAudioOutputFormat, streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, ElevenLabs.getDefaultModel(), generatedAudioOutputFormat, streamLatencyOptimization, settings);
 	}
 
 	public InputStream generateStream(String text,  GeneratedAudioOutputFormat generatedAudioOutputFormat, StreamLatencyOptimization streamLatencyOptimization) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, "eleven_monolingual_v1", generatedAudioOutputFormat, streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, ElevenLabs.getDefaultModel(), generatedAudioOutputFormat, streamLatencyOptimization, settings);
 	}
 
 	public InputStream generateStream(String text, String model, StreamLatencyOptimization streamLatencyOptimization) {
@@ -234,11 +234,11 @@ public class Voice extends ElevenModel {
 	}
 
 	public InputStream generateStream(String text, VoiceSettings settings, StreamLatencyOptimization streamLatencyOptimization)  {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, "eleven_monolingual_v1", GeneratedAudioOutputFormat.getDefault(), streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, ElevenLabs.getDefaultModel(), GeneratedAudioOutputFormat.getDefault(), streamLatencyOptimization, settings);
 	}
 
 	public InputStream generateStream(String text, StreamLatencyOptimization streamLatencyOptimization) {
-		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, "eleven_monolingual_v1", GeneratedAudioOutputFormat.getDefault(), streamLatencyOptimization, settings);
+		return ElevenLabs.getTextToSpeechAPI().generateTextToSpeechStreamed(voiceId, text, ElevenLabs.getDefaultModel(), GeneratedAudioOutputFormat.getDefault(), streamLatencyOptimization, settings);
 	}
 
 	public File speechToSpeech(File audioFile, StreamLatencyOptimization latencyOptimization, String modelId, VoiceSettings voiceSettings) {

src/main/java/net/andrewcpu/elevenlabs/requests/DeleteRequest.java

@@ -6,4 +6,9 @@ public abstract class DeleteRequest<T> extends ElevenLabsRequest<T> {
 	public DeleteRequest(String endpoint, Class<T> clazz) {
 		super(HttpRequestType.DELETE, endpoint, clazz);
 	}
+
+	@Override
+	public Object getPayload() {
+		return null;
+	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/ElevenLabsRequest.java

@@ -8,9 +8,9 @@ import java.util.Map;
 import static net.andrewcpu.elevenlabs.util.ElevenNetworkUtil.buildQueryParameters;
 
 public abstract class ElevenLabsRequest<T> {
-	private HttpRequestType type;
-	private String endpoint;
-	private Class<T> responseClass;
+	private final HttpRequestType type;
+	private final String endpoint;
+	private final Class<T> responseClass;
 
 	public ElevenLabsRequest(HttpRequestType type, String endpoint, Class<T> clazz) {
 		this.type = type;
@@ -23,6 +23,8 @@ public abstract class ElevenLabsRequest<T> {
 	}
 
 	public String getEndpoint() {
+		Map<String, String> params = getQueryParameters();
+		if(params.isEmpty()) return endpoint;
 		return endpoint + "?" + buildQueryParameters(getQueryParameters());
 	}
 

src/main/java/net/andrewcpu/elevenlabs/requests/GetRequest.java

@@ -6,4 +6,9 @@ public abstract class GetRequest<T> extends ElevenLabsRequest<T> {
 	public GetRequest(String endpoint, Class<T> clazz) {
 		super(HttpRequestType.GET, endpoint, clazz);
 	}
+
+	@Override
+	public Object getPayload() {
+		return null;
+	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/audionative/PostCreateAudioNativeProjectRequest.java

@@ -8,7 +8,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class PostCreateAudioNativeProjectRequest extends PostRequest<CreateAudioEnabledProjectModelResponse> {
-	private CreateAudioNativeProjectRequest request;
+	private final CreateAudioNativeProjectRequest request;
 	public PostCreateAudioNativeProjectRequest(CreateAudioNativeProjectRequest request) {
 		super("v1/audio-native", CreateAudioEnabledProjectModelResponse.class);
 		this.request = request;

src/main/java/net/andrewcpu/elevenlabs/requests/history/DeleteHistoryItemRequest.java

@@ -6,9 +6,4 @@ public class DeleteHistoryItemRequest extends DeleteRequest<String> {
 	public DeleteHistoryItemRequest(String historyItemId) {
 		super("v1/history/" + historyItemId, String.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/history/GetHistoryItemAudioRequest.java

@@ -8,9 +8,4 @@ public class GetHistoryItemAudioRequest extends GetRequest<File> {
 	public GetHistoryItemAudioRequest(String historyItemId) {
 		super("v1/history/" + historyItemId + "/audio", File.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/history/GetHistoryItemByIdRequest.java

@@ -7,9 +7,4 @@ public class GetHistoryItemByIdRequest extends GetRequest<HistoryItem> {
 	public GetHistoryItemByIdRequest(String historyId) {
 		super("v1/history/" + historyId, HistoryItem.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/history/GetHistoryRequest.java

@@ -7,9 +7,4 @@ public class GetHistoryRequest extends GetRequest<History> {
 	public GetHistoryRequest() {
 		super("v1/history", History.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/history/PostDownloadHistoryItemsRequest.java

@@ -8,7 +8,7 @@ import java.util.Arrays;
 import java.util.stream.Collectors;
 
 public class PostDownloadHistoryItemsRequest extends PostRequest<File> {
-	private String[] historyItemIds;
+	private final String[] historyItemIds;
 	public PostDownloadHistoryItemsRequest(String... historyItemIds) {
 		super("v1/history/download", File.class);
 		this.historyItemIds = historyItemIds;

src/main/java/net/andrewcpu/elevenlabs/requests/models/GetModelsRequest.java

@@ -7,9 +7,4 @@ public class GetModelsRequest extends GetRequest<GenerationTypeModel[]> {
 	public GetModelsRequest() {
 		super("v1/models", GenerationTypeModel[].class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/DeleteChapterByIdRequest.java

@@ -7,9 +7,4 @@ public class DeleteChapterByIdRequest extends DeleteRequest<String> {
 	public DeleteChapterByIdRequest(String projectId, String chapterId) {
 		super("v1/projects/" + projectId + "/chapters/" + chapterId, String.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/DeleteProjectByIdRequest.java

@@ -6,9 +6,4 @@ public class DeleteProjectByIdRequest extends DeleteRequest<String> {
 	public DeleteProjectByIdRequest(String projectId) {
 		super("v1/projects/" + projectId, String.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/GetChapterByIdRequest.java

@@ -7,9 +7,4 @@ public class GetChapterByIdRequest extends GetRequest<Chapter> {
 	public GetChapterByIdRequest(String projectId, String chapterId) {
 		super("v1/projects/" + projectId + "/chapters/" + chapterId, Chapter.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/GetChapterSnapshotsRequest.java

@@ -8,8 +8,4 @@ public class GetChapterSnapshotsRequest extends GetRequest<ChapterSnapshotsModel
 		super("v1/projects/" + projectId + "/chapters/" + chapterId + "/snapshots", ChapterSnapshotsModelResponse.class);
 	}
 
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/GetProjectByIdRequest.java

@@ -7,9 +7,4 @@ public class GetProjectByIdRequest extends GetRequest<Project> {
 	public GetProjectByIdRequest(String projectId) {
 		super("v1/projects/" + projectId, Project.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/GetProjectChaptersRequest.java

@@ -7,9 +7,4 @@ public class GetProjectChaptersRequest extends GetRequest<ChaptersModelResponse>
 	public GetProjectChaptersRequest(String projectId) {
 		super("v1/projects/" + projectId + "/chapters", ChaptersModelResponse.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/GetProjectSnapshotsRequest.java

@@ -7,9 +7,4 @@ public class GetProjectSnapshotsRequest extends GetRequest<ProjectSnapshotsModel
 	public GetProjectSnapshotsRequest(String projectId) {
 		super("v1/projects/" + projectId + "/snapshots", ProjectSnapshotsModelResponse.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/GetProjectsRequest.java

@@ -3,15 +3,8 @@ package net.andrewcpu.elevenlabs.requests.projects;
 import net.andrewcpu.elevenlabs.model.response.ProjectsModelResponse;
 import net.andrewcpu.elevenlabs.requests.GetRequest;
 
-import java.util.HashMap;
-
 public class GetProjectsRequest extends GetRequest<ProjectsModelResponse> {
 	public GetProjectsRequest() {
 		super("v1/projects", ProjectsModelResponse.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/projects/PostAddProjectRequest.java

@@ -8,7 +8,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class PostAddProjectRequest extends PostRequest<ProjectModelResponse> {
-	private AddProjectRequest request;
+	private final AddProjectRequest request;
 	public PostAddProjectRequest(AddProjectRequest request) {
 		super("v1/projects/add", ProjectModelResponse.class);
 		this.request = request;

src/main/java/net/andrewcpu/elevenlabs/requests/samples/DeleteSampleRequest.java

@@ -6,9 +6,4 @@ public class DeleteSampleRequest extends DeleteRequest<String> {
 	public DeleteSampleRequest(String voiceId, String sampleId) {
 		super("v1/voices/" + voiceId + "/samples/" + sampleId, String.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/samples/GetSampleRequest.java

@@ -8,9 +8,4 @@ public class GetSampleRequest extends GetRequest<File> {
 	public GetSampleRequest(String voiceId, String sampleId) {
 		super("v1/voices/" + voiceId + "/samples/" + sampleId + "/audio", File.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/sts/PostSpeechToSpeechRequest.java

@@ -9,10 +9,10 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class PostSpeechToSpeechRequest extends PostRequest<File> {
-	private StreamLatencyOptimization latencyOptimization;
-	private String modelId;
-	private VoiceSettings voiceSettings;
-	private File audio;
+	private final StreamLatencyOptimization latencyOptimization;
+	private final String modelId;
+	private final VoiceSettings voiceSettings;
+	private final File audio;
 	public PostSpeechToSpeechRequest(String voiceId, VoiceSettings voiceSettings, File audio, String modelId, StreamLatencyOptimization latencyOptimization) {
 		super("v1/speech-to-speech/" + voiceId, File.class);
 		this.latencyOptimization = latencyOptimization;

src/main/java/net/andrewcpu/elevenlabs/requests/sts/PostSpeechToSpeechStreamedRequest.java

@@ -10,10 +10,10 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class PostSpeechToSpeechStreamedRequest extends PostRequest<InputStream> {
-	private StreamLatencyOptimization latencyOptimization;
-	private String modelId;
-	private VoiceSettings voiceSettings;
-	private File audio;
+	private final StreamLatencyOptimization latencyOptimization;
+	private final String modelId;
+	private final VoiceSettings voiceSettings;
+	private final File audio;
 	public PostSpeechToSpeechStreamedRequest(String voiceId, VoiceSettings voiceSettings, File audio, String modelId, StreamLatencyOptimization latencyOptimization) {
 		super("v1/speech-to-speech/" + voiceId + "/stream", InputStream.class);
 		this.latencyOptimization = latencyOptimization;

src/main/java/net/andrewcpu/elevenlabs/requests/tts/PostTextToSpeechRequest.java

@@ -10,9 +10,9 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class PostTextToSpeechRequest extends PostRequest<File> {
-	private TextToSpeechRequest request;
-	private StreamLatencyOptimization streamLatencyOptimization;
-	private GeneratedAudioOutputFormat outputFormat;
+	private final TextToSpeechRequest request;
+	private final StreamLatencyOptimization streamLatencyOptimization;
+	private final GeneratedAudioOutputFormat outputFormat;
 
 	public PostTextToSpeechRequest(String voiceId, TextToSpeechRequest request) {
 		super("v1/text-to-speech/" + voiceId, File.class);
@@ -52,7 +52,7 @@ public class PostTextToSpeechRequest extends PostRequest<File> {
 	public Map<String, String> getQueryParameters() {
 		Map<String, String> map = new HashMap<>();
 		map.put("optimize_streaming_latency", String.valueOf(streamLatencyOptimization.getValue()));
-		map.put("output_format", outputFormat.name());
+		map.put("output_format", outputFormat.name().toLowerCase());
 		return map;
 	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/tts/PostTextToSpeechStreamedRequest.java

@@ -5,15 +5,14 @@ import net.andrewcpu.elevenlabs.enums.StreamLatencyOptimization;
 import net.andrewcpu.elevenlabs.model.request.TextToSpeechRequest;
 import net.andrewcpu.elevenlabs.requests.PostRequest;
 
-import java.io.File;
 import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 
 public class PostTextToSpeechStreamedRequest extends PostRequest<InputStream> {
-	private TextToSpeechRequest request;
-	private StreamLatencyOptimization streamLatencyOptimization;
-	private GeneratedAudioOutputFormat outputFormat;
+	private final TextToSpeechRequest request;
+	private final StreamLatencyOptimization streamLatencyOptimization;
+	private final GeneratedAudioOutputFormat outputFormat;
 
 	public PostTextToSpeechStreamedRequest(String voiceId, TextToSpeechRequest request) {
 		super("v1/text-to-speech/" + voiceId, InputStream.class);
@@ -47,7 +46,7 @@ public class PostTextToSpeechStreamedRequest extends PostRequest<InputStream> {
 	public Map<String, String> getQueryParameters() {
 		Map<String, String> map = new HashMap<>();
 		map.put("optimize_streaming_latency", String.valueOf(streamLatencyOptimization.getValue()));
-		map.put("output_format", outputFormat.name());
+		map.put("output_format", outputFormat.name().toLowerCase());
 		return map;
 	}
 

src/main/java/net/andrewcpu/elevenlabs/requests/user/GetSubscriptionRequest.java

@@ -8,9 +8,4 @@ public class GetSubscriptionRequest extends GetRequest<Subscription> {
 	public GetSubscriptionRequest() {
 		super("v1/user/subscription", Subscription.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/user/GetUserRequest.java

@@ -7,9 +7,4 @@ public class GetUserRequest extends GetRequest<User> {
 	public GetUserRequest() {
 		super("v1/user", User.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/voices/DeleteVoiceRequest.java

@@ -6,9 +6,4 @@ public class DeleteVoiceRequest extends DeleteRequest<String> {
 	public DeleteVoiceRequest(String voiceId) {
 		super("v1/voices/" + voiceId, String.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/voices/GetDefaultVoiceSettingsRequest.java

@@ -7,9 +7,4 @@ public class GetDefaultVoiceSettingsRequest extends GetRequest<VoiceSettings> {
 	public GetDefaultVoiceSettingsRequest() {
 		super("v1/voices/settings/default", VoiceSettings.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/voices/GetVoiceRequest.java

@@ -7,20 +7,23 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class GetVoiceRequest extends GetRequest<Voice> {
-	private boolean withSettings;
+	private final boolean withSettings;
 	public GetVoiceRequest(String voiceId) {
 		this(voiceId,  true);
 	}
 
+
+
 	public GetVoiceRequest(String voiceId, boolean withSettings) {
 		super( "v1/voices/" + voiceId, Voice.class);
 		this.withSettings = withSettings;
 	}
 
 	@Override
-	public Object getPayload() {
-		Map<String, Object> payload = new HashMap<>();
-		payload.put("with_settings", withSettings);
+	public Map<String, String> getQueryParameters() {
+		Map<String, String> payload = new HashMap<>();
+		payload.put("with_settings", String.valueOf(withSettings));
 		return payload;
 	}
+
 }

src/main/java/net/andrewcpu/elevenlabs/requests/voices/GetVoiceSettingsRequest.java

@@ -7,9 +7,4 @@ public class GetVoiceSettingsRequest extends GetRequest<VoiceSettings> {
 	public GetVoiceSettingsRequest(String voiceId) {
 		super("v1/voices/" + voiceId + "/settings", VoiceSettings.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/voices/GetVoicesRequest.java

@@ -7,9 +7,4 @@ public class GetVoicesRequest extends GetRequest<VoiceModelResponse> {
 	public GetVoicesRequest() {
 		super("v1/voices", VoiceModelResponse.class);
 	}
-
-	@Override
-	public Object getPayload() {
-		return null;
-	}
 }

src/main/java/net/andrewcpu/elevenlabs/requests/voices/PostAddVoiceRequest.java

@@ -8,10 +8,10 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class PostAddVoiceRequest extends PostRequest<CreateVoiceResponse> {
-	private String name;
-	private File[] samples;
-	private String description;
-	private Map<String, String> labels;
+	private final String name;
+	private final File[] samples;
+	private final String description;
+	private final Map<String, String> labels;
 	public PostAddVoiceRequest(String name, File[] samples, String description, Map<String, String> labels) {
 		super("v1/voices/add", CreateVoiceResponse.class);
 		this.name = name;

src/main/java/net/andrewcpu/elevenlabs/requests/voices/PostEditVoiceRequest.java

@@ -7,10 +7,10 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class PostEditVoiceRequest extends PostRequest<String> {
-	private String name;
-	private File[] samples;
-	private String description;
-	private Map<String, String> labels;
+	private final String name;
+	private final File[] samples;
+	private final String description;
+	private final Map<String, String> labels;
 	public PostEditVoiceRequest(String voiceId, String name, File[] samples, String description, Map<String, String> labels) {
 		super("v1/voices/" + voiceId + "/edit", String.class);
 		this.name = name;

src/main/java/net/andrewcpu/elevenlabs/requests/voices/PostEditVoiceSettingsRequest.java

@@ -4,7 +4,7 @@ import net.andrewcpu.elevenlabs.model.voice.VoiceSettings;
 import net.andrewcpu.elevenlabs.requests.PostRequest;
 
 public class PostEditVoiceSettingsRequest extends PostRequest<String> {
-	private VoiceSettings voiceSettings;
+	private final VoiceSettings voiceSettings;
 	public PostEditVoiceSettingsRequest(String voiceId, VoiceSettings voiceSettings) {
 		super("v1/voices/" + voiceId + "/settings/edit", String.class);
 		this.voiceSettings = voiceSettings;

src/main/java/net/andrewcpu/elevenlabs/util/ElevenNetworkUtil.java

@@ -12,16 +12,19 @@ import org.apache.hc.client5.http.entity.mime.MultipartEntityBuilder;
 import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
 import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
 import org.apache.hc.client5.http.impl.classic.HttpClients;
-import org.apache.hc.core5.http.*;
+import org.apache.hc.core5.http.ContentType;
+import org.apache.hc.core5.http.HttpEntity;
+import org.apache.hc.core5.http.HttpRequest;
+import org.apache.hc.core5.http.NameValuePair;
 import org.apache.hc.core5.http.io.entity.EntityUtils;
 import org.apache.hc.core5.http.io.entity.StringEntity;
 import org.apache.hc.core5.http.message.BasicNameValuePair;
 import org.apache.hc.core5.net.URIBuilder;
 
-
 import java.io.*;
 import java.net.URISyntaxException;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -47,11 +50,7 @@ public class ElevenNetworkUtil {
 	}
 
 	private static String encodeValue(String value) {
-		try {
-			return URLEncoder.encode(value, "UTF-8");
-		} catch (UnsupportedEncodingException e) {
-			throw new RuntimeException("Encoding not supported", e);
-		}
+		return URLEncoder.encode(value, StandardCharsets.UTF_8);
 	}
 
 	public static HttpUriRequestBase getRequest(HttpRequestType type, String path) {
@@ -67,22 +66,10 @@ public class ElevenNetworkUtil {
 		}
 	}
 
-	private static List<NameValuePair> getParameters(Object payload) {
-		List<NameValuePair> parameters = new ArrayList<>();
-		if (payload instanceof Map<?, ?>) {
-			Map<?, ?> payloadMap = (Map<?, ?>) payload;
-			for (Map.Entry<?, ?> entry : payloadMap.entrySet()) {
-				parameters.add(new BasicNameValuePair(String.valueOf(entry.getKey()), String.valueOf(entry.getValue())));
-			}
-		}
-		return parameters;
-	}
-
-	private static HttpUriRequestBase handleNonBodyRequest(HttpRequestType requestType, Object payload, String path) {
-		List<NameValuePair> parameters = getParameters(payload);
+	private static HttpUriRequestBase handleNonBodyRequest(HttpRequestType requestType, String path) {
 		HttpUriRequestBase request = getRequest(requestType, path);
 		try {
-			request.setUri(new URIBuilder(path).addParameters(parameters).build());
+			request.setUri(new URIBuilder(path).build());
 		} catch (URISyntaxException e) {
 			throw new RuntimeException(e);
 		}
@@ -142,7 +129,7 @@ public class ElevenNetworkUtil {
 	public static HttpUriRequestBase getRequest(HttpRequestType method, String path, Object payload) throws JsonProcessingException {
 		HttpUriRequestBase request;
 		if (method == HttpRequestType.GET || method == HttpRequestType.DELETE) {
-			request = handleNonBodyRequest(method, payload, path);
+			request = handleNonBodyRequest(method, path);
 		} else {
 			request = handleBodyRequest(method, payload, path);
 		}

src/test/java/net/andrewcpu/elevenlabs/User/UserTest.java

@@ -4,8 +4,7 @@ import net.andrewcpu.elevenlabs.ElevenLabs;
 import net.andrewcpu.elevenlabs.ElevenLabsTest;
 import org.junit.Test;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.*;
 
 public class UserTest extends ElevenLabsTest {
 	@Test
@@ -14,7 +13,7 @@ public class UserTest extends ElevenLabsTest {
 			ElevenLabs.getUserAPI().getUser();
 		}catch (Exception e) {
 			e.printStackTrace();
-			assertTrue("Failed to get user: " + e.getMessage(), false);
+			fail("Failed to get user: " + e.getMessage());
 		}
 	}
 
@@ -24,7 +23,7 @@ public class UserTest extends ElevenLabsTest {
 			ElevenLabs.getUserAPI().getSubscription();
 		}catch (Exception e) {
 			e.printStackTrace();
-			assertFalse("Failed to get subscription: " + e.getMessage(), true);
+			fail("Failed to get subscription: " + e.getMessage());
 		}
 	}
 }

src/test/java/net/andrewcpu/elevenlabs/Voice/VoiceTest.java

@@ -13,8 +13,7 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.*;
 
 
 public class VoiceTest extends ElevenLabsTest {
@@ -25,9 +24,9 @@ public class VoiceTest extends ElevenLabsTest {
 			voice = ElevenLabs.getVoiceAPI().getVoice(ElevenLabsTest.TEST_VOICE, true);
 		}catch (Exception e){
 			e.printStackTrace();
-			assertTrue("Failed to get voice: " + e.getMessage(), voice != null);
+			assertNotNull("Failed to get voice: " + e.getMessage(), voice);
 		}
-		assertTrue(voice.getSettings() != null);
+		assertNotNull(voice.getSettings());
 	}
 
 	@Test
@@ -37,9 +36,9 @@ public class VoiceTest extends ElevenLabsTest {
 			voice = ElevenLabs.getVoiceAPI().getVoice(ElevenLabsTest.TEST_VOICE, false);
 		}catch (Exception e){
 			e.printStackTrace();
-			assertTrue("Failed to get voice: " + e.getMessage(), voice != null);
+			assertNotNull("Failed to get voice: " + e.getMessage(), voice);
 		}
-		assertTrue(voice.getSettings() == null);
+		assertNull(voice.getSettings());
 	}
 
 	@Test
@@ -49,7 +48,7 @@ public class VoiceTest extends ElevenLabsTest {
 			settings = ElevenLabs.getVoiceAPI().getVoiceSettings(ElevenLabsTest.TEST_VOICE);
 		}catch (Exception e) {
 			e.printStackTrace();
-			assertTrue("Failed to get voice settings: " + e.getMessage(), false);
+			fail("Failed to get voice settings: " + e.getMessage());
 		}
 	}
 
@@ -60,7 +59,7 @@ public class VoiceTest extends ElevenLabsTest {
 			defaultVoiceSettings = ElevenLabs.getVoiceAPI().getDefaultVoiceSettings();
 		}catch (Exception e) {
 			e.printStackTrace();
-			assertTrue("Failed to get default voice settings: " + e.getMessage(), false);
+			fail("Failed to get default voice settings: " + e.getMessage());
 		}
 	}
 
@@ -70,8 +69,8 @@ public class VoiceTest extends ElevenLabsTest {
 		try{
 			voices = ElevenLabs.getVoiceAPI().getVoices();
 		}catch (Exception e) {
-			e.printStackTrace();;
-			assertTrue("Failed to get voices: " + e.getMessage(), false);
+			e.printStackTrace();
+			fail("Failed to get voices: " + e.getMessage());
 		}
 		assertTrue(voices != null && voices.size() > 0);
 	}