Updated docs

Adds support for custom roles using `OllamaChatMessageRole`

README.md

@@ -4,12 +4,11 @@
   <img src='https://raw.githubusercontent.com/ollama4j/ollama4j/65a9d526150da8fcd98e2af6a164f055572bf722/ollama4j.jpeg' width='100' alt="ollama4j-icon">
 </p>
 
-
+<div align="center">
-A Java library (wrapper/binding) for [Ollama](https://ollama.ai/) server.
+A Java library (wrapper/binding) for Ollama server.
 
 Find more details on the [website](https://ollama4j.github.io/ollama4j/).
 
-<div align="center">
 
 ![GitHub stars](https://img.shields.io/github/stars/ollama4j/ollama4j)
 ![GitHub forks](https://img.shields.io/github/forks/ollama4j/ollama4j)
@@ -268,7 +267,10 @@ make integration-tests
 
 Newer artifacts are published via GitHub Actions CI workflow when a new release is created from `main` branch.
 
-#### Who's using Ollama4j?
+## ⭐ Give us a Star!
+If you like or are using this project to build your own, please give us a star. It's a free way to show your support.
+
+## Who's using Ollama4j?
 
 - `Datafaker`: a library to generate fake data
     - https://github.com/datafaker-net/datafaker-experimental/tree/main/ollama-api
@@ -277,18 +279,26 @@ Newer artifacts are published via GitHub Actions CI workflow when a new release
 - `ollama-translator`: Minecraft 1.20.6 spigot plugin allows to easily break language barriers by using ollama on the
   server to translate all messages into a specfic target language.
     - https://github.com/liebki/ollama-translator
+- `AI Player`: A minecraft mod which aims to add a "second player" into the game which will actually be intelligent.
+    - https://github.com/shasankp000/AI-Player
     - https://www.reddit.com/r/fabricmc/comments/1e65x5s/comment/ldr2vcf/
 - `Ollama4j Web UI`: A web UI for Ollama written in Java using Spring Boot and Vaadin framework and
   Ollama4j.
     - https://github.com/ollama4j/ollama4j-web-ui
 - `JnsCLI`: A command-line tool for Jenkins that manages jobs, builds, and configurations directly from the terminal while offering AI-powered error analysis for quick troubleshooting.
     -  https://github.com/mirum8/jnscli
+- `Katie Backend`: An Open Source AI-based question-answering platform that helps companies and organizations make their private domain knowledge accessible and useful to their employees and customers.
+    - https://github.com/wyona/katie-backend
+- `TeleLlama3 Bot`: A Question-Answering Telegram Bot.
+    - https://git.hiast.edu.sy/mohamadbashar.disoki/telellama3-bot
+- `moqui-wechat`: A wechat plugin
+    - https://github.com/heguangyong/moqui-wechat
 
-#### Traction
+## Traction
 
 [![Star History Chart](https://api.star-history.com/svg?repos=ollama4j/ollama4j&type=Date)](https://star-history.com/#ollama4j/ollama4j&Date)
 
-### Get Involved
+## Get Involved
 
 <div align="center">
 
@@ -316,6 +326,22 @@ Contributions are most welcome! Whether it's reporting a bug, proposing an enhan
 with code - any sort
 of contribution is much appreciated.
 
+## 🏷️ License and Citation
+
+The code is available under [MIT License](./LICENSE).
+
+If you find this project helpful in your research, please cite this work at
+
+```
+@misc{ollama4j2024,
+    author       = {Amith Koujalgi},
+    title        = {Ollama4j: A Java Library (Wrapper/Binding) for Ollama Server},
+    year         = {2024},
+    month        = {January},
+    url          = {https://github.com/ollama4j/ollama4j}
+}
+```
+
 ### References
 
 - [Ollama REST APIs](https://github.com/jmorganca/ollama/blob/main/docs/api.md)

docs/docs/apis-generate/custom-roles.md

@@ -0,0 +1,65 @@
+---
+sidebar_position: 8
+---
+
+# Custom Roles
+
+Allows to manage custom roles (apart from the base roles) for chat interactions with the models.
+
+_Particularly helpful when you would need to use different roles that the newer models support other than the base
+roles._
+
+_Base roles are `SYSTEM`, `USER`, `ASSISTANT`, `TOOL`._
+
+### Usage
+
+#### Add new role
+
+```java
+import io.github.ollama4j.OllamaAPI;
+import io.github.ollama4j.models.chat.OllamaChatMessageRole;
+
+public class Main {
+
+    public static void main(String[] args) {
+        String host = "http://localhost:11434/";
+        OllamaAPI ollamaAPI = new OllamaAPI(host);
+
+        OllamaChatMessageRole customRole = ollamaAPI.addCustomRole("custom-role");
+    }
+}
+```
+
+#### List roles
+
+```java
+import io.github.ollama4j.OllamaAPI;
+import io.github.ollama4j.models.chat.OllamaChatMessageRole;
+
+public class Main {
+
+    public static void main(String[] args) {
+        String host = "http://localhost:11434/";
+        OllamaAPI ollamaAPI = new OllamaAPI(host);
+
+        List<OllamaChatMessageRole> roles = ollamaAPI.listRoles();
+    }
+}
+```
+
+#### Get role
+
+```java
+import io.github.ollama4j.OllamaAPI;
+import io.github.ollama4j.models.chat.OllamaChatMessageRole;
+
+public class Main {
+
+    public static void main(String[] args) {
+        String host = "http://localhost:11434/";
+        OllamaAPI ollamaAPI = new OllamaAPI(host);
+
+        List<OllamaChatMessageRole> roles = ollamaAPI.getRole("custom-role");
+    }
+}
+```

docs/docs/apis-generate/generate-embeddings.md

@@ -8,12 +8,85 @@ Generate embeddings from a model.
 
 Parameters:
 
+- `model`: name of model to generate embeddings from
+- `input`: text/s to generate embeddings for
+
+```java
+import io.github.ollama4j.OllamaAPI;
+import io.github.ollama4j.types.OllamaModelType;
+import io.github.ollama4j.models.embeddings.OllamaEmbedRequestModel;
+import io.github.ollama4j.models.embeddings.OllamaEmbedResponseModel;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+public class Main {
+
+    public static void main(String[] args) {
+
+        String host = "http://localhost:11434/";
+
+        OllamaAPI ollamaAPI = new OllamaAPI(host);
+
+        OllamaEmbedResponseModel embeddings = ollamaAPI.embed("all-minilm", Arrays.asList("Why is the sky blue?", "Why is the grass green?"));
+
+        System.out.println(embeddings);
+    }
+}
+```
+
+Or, using the `OllamaEmbedRequestModel`:
+
+```java
+import io.github.ollama4j.OllamaAPI;
+import io.github.ollama4j.types.OllamaModelType;
+import io.github.ollama4j.models.embeddings.OllamaEmbedRequestModel;
+import io.github.ollama4j.models.embeddings.OllamaEmbedResponseModel;import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+public class Main {
+
+    public static void main(String[] args) {
+
+        String host = "http://localhost:11434/";
+
+        OllamaAPI ollamaAPI = new OllamaAPI(host);
+
+        OllamaEmbedResponseModel embeddings = ollamaAPI.embed(new OllamaEmbedRequestModel("all-minilm", Arrays.asList("Why is the sky blue?", "Why is the grass green?")));
+
+        System.out.println(embeddings);
+    }
+}
+```
+
+You will get a response similar to:
+
+```json
+{
+    "model": "all-minilm",
+    "embeddings": [[-0.034674067, 0.030984823, 0.0067988685]],
+    "total_duration": 14173700,
+    "load_duration": 1198800,
+    "prompt_eval_count": 2
+}
+````
+
+:::note
+
+This is a deprecated API
+
+:::
+
+Parameters:
+
 - `model`: name of model to generate embeddings from
 - `prompt`: text to generate embeddings for
 
 ```java
 import io.github.ollama4j.OllamaAPI;
 import io.github.ollama4j.types.OllamaModelType;
+
 import java.util.List;
 
 public class Main {
@@ -40,11 +113,6 @@ You will get a response similar to:
     0.009260174818336964,
     0.23178744316101074,
     -0.2916173040866852,
-    -0.8924556970596313,
+    -0.8924556970596313
-    0.8785552978515625,
-    -0.34576427936553955,
-    0.5742510557174683,
-    -0.04222835972905159,
-    -0.137906014919281
 ]
 ```

pom.xml

@@ -63,6 +63,10 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <version>3.5.0</version>
+                <configuration>
+                    <!-- to disable the "missing" warnings. Remove the doclint to enable warnings-->
+                    <doclint>all,-missing</doclint>
+                </configuration>
                 <executions>
                     <execution>
                         <id>attach-javadocs</id>

src/main/java/io/github/ollama4j/OllamaAPI.java

@@ -1,14 +1,14 @@
 package io.github.ollama4j;
 
 import io.github.ollama4j.exceptions.OllamaBaseException;
+import io.github.ollama4j.exceptions.RoleNotFoundException;
 import io.github.ollama4j.exceptions.ToolInvocationException;
 import io.github.ollama4j.exceptions.ToolNotFoundException;
-import io.github.ollama4j.models.chat.OllamaChatMessage;
+import io.github.ollama4j.models.chat.*;
-import io.github.ollama4j.models.chat.OllamaChatRequest;
+import io.github.ollama4j.models.embeddings.OllamaEmbedRequestModel;
-import io.github.ollama4j.models.chat.OllamaChatRequestBuilder;
-import io.github.ollama4j.models.chat.OllamaChatResult;
 import io.github.ollama4j.models.embeddings.OllamaEmbeddingResponseModel;
 import io.github.ollama4j.models.embeddings.OllamaEmbeddingsRequestModel;
+import io.github.ollama4j.models.embeddings.OllamaEmbedResponseModel;
 import io.github.ollama4j.models.generate.OllamaGenerateRequest;
 import io.github.ollama4j.models.generate.OllamaStreamHandler;
 import io.github.ollama4j.models.ps.ModelsProcessResponse;
@@ -36,7 +36,7 @@ import java.util.*;
 /**
  * The base Ollama API class.
  */
-@SuppressWarnings("DuplicatedCode")
+@SuppressWarnings({"DuplicatedCode", "resource"})
 public class OllamaAPI {
 
     private static final Logger logger = LoggerFactory.getLogger(OllamaAPI.class);
@@ -97,12 +97,7 @@ public class OllamaAPI {
         HttpClient httpClient = HttpClient.newHttpClient();
         HttpRequest httpRequest = null;
         try {
-            httpRequest =
+            httpRequest = getRequestBuilderDefault(new URI(url)).header("Accept", "application/json").header("Content-type", "application/json").GET().build();
-                    getRequestBuilderDefault(new URI(url))
-                            .header("Accept", "application/json")
-                            .header("Content-type", "application/json")
-                            .GET()
-                            .build();
         } catch (URISyntaxException e) {
             throw new RuntimeException(e);
         }
@@ -121,19 +116,17 @@ public class OllamaAPI {
     /**
      * Provides a list of running models and details about each model currently loaded into memory.
      *
-     * @return ModelsProcessResponse
+     * @return ModelsProcessResponse containing details about the running models
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws OllamaBaseException  if the response indicates an error status
      */
     public ModelsProcessResponse ps() throws IOException, InterruptedException, OllamaBaseException {
         String url = this.host + "/api/ps";
         HttpClient httpClient = HttpClient.newHttpClient();
         HttpRequest httpRequest = null;
         try {
-            httpRequest =
+            httpRequest = getRequestBuilderDefault(new URI(url)).header("Accept", "application/json").header("Content-type", "application/json").GET().build();
-                    getRequestBuilderDefault(new URI(url))
-                            .header("Accept", "application/json")
-                            .header("Content-type", "application/json")
-                            .GET()
-                            .build();
         } catch (URISyntaxException e) {
             throw new RuntimeException(e);
         }
@@ -142,36 +135,30 @@ public class OllamaAPI {
         int statusCode = response.statusCode();
         String responseString = response.body();
         if (statusCode == 200) {
-            return Utils.getObjectMapper()
+            return Utils.getObjectMapper().readValue(responseString, ModelsProcessResponse.class);
-                    .readValue(responseString, ModelsProcessResponse.class);
         } else {
             throw new OllamaBaseException(statusCode + " - " + responseString);
         }
     }
 
     /**
-     * List available models from Ollama server.
+     * Lists available models from the Ollama server.
      *
-     * @return the list
+     * @return a list of models available on the server
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public List<Model> listModels()
+    public List<Model> listModels() throws OllamaBaseException, IOException, InterruptedException, URISyntaxException {
-            throws OllamaBaseException, IOException, InterruptedException, URISyntaxException {
         String url = this.host + "/api/tags";
         HttpClient httpClient = HttpClient.newHttpClient();
-        HttpRequest httpRequest =
+        HttpRequest httpRequest = getRequestBuilderDefault(new URI(url)).header("Accept", "application/json").header("Content-type", "application/json").GET().build();
-                getRequestBuilderDefault(new URI(url))
+        HttpResponse<String> response = httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString());
-                        .header("Accept", "application/json")
-                        .header("Content-type", "application/json")
-                        .GET()
-                        .build();
-        HttpResponse<String> response =
-                httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString());
         int statusCode = response.statusCode();
         String responseString = response.body();
         if (statusCode == 200) {
-            return Utils.getObjectMapper()
+            return Utils.getObjectMapper().readValue(responseString, ListModelsResponse.class).getModels();
-                    .readValue(responseString, ListModelsResponse.class)
-                    .getModels();
         } else {
             throw new OllamaBaseException(statusCode + " - " + responseString);
         }
@@ -182,29 +169,24 @@ public class OllamaAPI {
      * href="https://ollama.ai/library">available models</a>.
      *
      * @param modelName the name of the model
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public void pullModel(String modelName)
+    public void pullModel(String modelName) throws OllamaBaseException, IOException, URISyntaxException, InterruptedException {
-            throws OllamaBaseException, IOException, URISyntaxException, InterruptedException {
         String url = this.host + "/api/pull";
         String jsonData = new ModelRequest(modelName).toString();
-        HttpRequest request =
+        HttpRequest request = getRequestBuilderDefault(new URI(url)).POST(HttpRequest.BodyPublishers.ofString(jsonData)).header("Accept", "application/json").header("Content-type", "application/json").build();
-                getRequestBuilderDefault(new URI(url))
-                        .POST(HttpRequest.BodyPublishers.ofString(jsonData))
-                        .header("Accept", "application/json")
-                        .header("Content-type", "application/json")
-                        .build();
         HttpClient client = HttpClient.newHttpClient();
-        HttpResponse<InputStream> response =
+        HttpResponse<InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());
-                client.send(request, HttpResponse.BodyHandlers.ofInputStream());
         int statusCode = response.statusCode();
         InputStream responseBodyStream = response.body();
         String responseString = "";
-        try (BufferedReader reader =
+        try (BufferedReader reader = new BufferedReader(new InputStreamReader(responseBodyStream, StandardCharsets.UTF_8))) {
-                     new BufferedReader(new InputStreamReader(responseBodyStream, StandardCharsets.UTF_8))) {
             String line;
             while ((line = reader.readLine()) != null) {
-                ModelPullResponse modelPullResponse =
+                ModelPullResponse modelPullResponse = Utils.getObjectMapper().readValue(line, ModelPullResponse.class);
-                        Utils.getObjectMapper().readValue(line, ModelPullResponse.class);
                 if (verbose) {
                     logger.info(modelPullResponse.getStatus());
                 }
@@ -220,17 +202,15 @@ public class OllamaAPI {
      *
      * @param modelName the model
      * @return the model details
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public ModelDetail getModelDetails(String modelName)
+    public ModelDetail getModelDetails(String modelName) throws IOException, OllamaBaseException, InterruptedException, URISyntaxException {
-            throws IOException, OllamaBaseException, InterruptedException, URISyntaxException {
         String url = this.host + "/api/show";
         String jsonData = new ModelRequest(modelName).toString();
-        HttpRequest request =
+        HttpRequest request = getRequestBuilderDefault(new URI(url)).header("Accept", "application/json").header("Content-type", "application/json").POST(HttpRequest.BodyPublishers.ofString(jsonData)).build();
-                getRequestBuilderDefault(new URI(url))
-                        .header("Accept", "application/json")
-                        .header("Content-type", "application/json")
-                        .POST(HttpRequest.BodyPublishers.ofString(jsonData))
-                        .build();
         HttpClient client = HttpClient.newHttpClient();
         HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
         int statusCode = response.statusCode();
@@ -248,17 +228,15 @@ public class OllamaAPI {
      *
      * @param modelName     the name of the custom model to be created.
      * @param modelFilePath the path to model file that exists on the Ollama server.
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public void createModelWithFilePath(String modelName, String modelFilePath)
+    public void createModelWithFilePath(String modelName, String modelFilePath) throws IOException, InterruptedException, OllamaBaseException, URISyntaxException {
-            throws IOException, InterruptedException, OllamaBaseException, URISyntaxException {
         String url = this.host + "/api/create";
         String jsonData = new CustomModelFilePathRequest(modelName, modelFilePath).toString();
-        HttpRequest request =
+        HttpRequest request = getRequestBuilderDefault(new URI(url)).header("Accept", "application/json").header("Content-Type", "application/json").POST(HttpRequest.BodyPublishers.ofString(jsonData, StandardCharsets.UTF_8)).build();
-                getRequestBuilderDefault(new URI(url))
-                        .header("Accept", "application/json")
-                        .header("Content-Type", "application/json")
-                        .POST(HttpRequest.BodyPublishers.ofString(jsonData, StandardCharsets.UTF_8))
-                        .build();
         HttpClient client = HttpClient.newHttpClient();
         HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
         int statusCode = response.statusCode();
@@ -282,17 +260,15 @@ public class OllamaAPI {
      *
      * @param modelName         the name of the custom model to be created.
      * @param modelFileContents the path to model file that exists on the Ollama server.
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public void createModelWithModelFileContents(String modelName, String modelFileContents)
+    public void createModelWithModelFileContents(String modelName, String modelFileContents) throws IOException, InterruptedException, OllamaBaseException, URISyntaxException {
-            throws IOException, InterruptedException, OllamaBaseException, URISyntaxException {
         String url = this.host + "/api/create";
         String jsonData = new CustomModelFileContentsRequest(modelName, modelFileContents).toString();
-        HttpRequest request =
+        HttpRequest request = getRequestBuilderDefault(new URI(url)).header("Accept", "application/json").header("Content-Type", "application/json").POST(HttpRequest.BodyPublishers.ofString(jsonData, StandardCharsets.UTF_8)).build();
-                getRequestBuilderDefault(new URI(url))
-                        .header("Accept", "application/json")
-                        .header("Content-Type", "application/json")
-                        .POST(HttpRequest.BodyPublishers.ofString(jsonData, StandardCharsets.UTF_8))
-                        .build();
         HttpClient client = HttpClient.newHttpClient();
         HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
         int statusCode = response.statusCode();
@@ -313,17 +289,15 @@ public class OllamaAPI {
      *
      * @param modelName          the name of the model to be deleted.
      * @param ignoreIfNotPresent ignore errors if the specified model is not present on Ollama server.
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public void deleteModel(String modelName, boolean ignoreIfNotPresent)
+    public void deleteModel(String modelName, boolean ignoreIfNotPresent) throws IOException, InterruptedException, OllamaBaseException, URISyntaxException {
-            throws IOException, InterruptedException, OllamaBaseException, URISyntaxException {
         String url = this.host + "/api/delete";
         String jsonData = new ModelRequest(modelName).toString();
-        HttpRequest request =
+        HttpRequest request = getRequestBuilderDefault(new URI(url)).method("DELETE", HttpRequest.BodyPublishers.ofString(jsonData, StandardCharsets.UTF_8)).header("Accept", "application/json").header("Content-type", "application/json").build();
-                getRequestBuilderDefault(new URI(url))
-                        .method("DELETE", HttpRequest.BodyPublishers.ofString(jsonData, StandardCharsets.UTF_8))
-                        .header("Accept", "application/json")
-                        .header("Content-type", "application/json")
-                        .build();
         HttpClient client = HttpClient.newHttpClient();
         HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
         int statusCode = response.statusCode();
@@ -342,9 +316,13 @@ public class OllamaAPI {
      * @param model  name of model to generate embeddings from
      * @param prompt text to generate embeddings for
      * @return embeddings
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @deprecated Use {@link #embed(String, List)} instead.
      */
-    public List<Double> generateEmbeddings(String model, String prompt)
+    @Deprecated
-            throws IOException, InterruptedException, OllamaBaseException {
+    public List<Double> generateEmbeddings(String model, String prompt) throws IOException, InterruptedException, OllamaBaseException {
         return generateEmbeddings(new OllamaEmbeddingsRequestModel(model, prompt));
     }
 
@@ -353,28 +331,69 @@ public class OllamaAPI {
      *
      * @param modelRequest request for '/api/embeddings' endpoint
      * @return embeddings
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @deprecated Use {@link #embed(OllamaEmbedRequestModel)} instead.
      */
+    @Deprecated
     public List<Double> generateEmbeddings(OllamaEmbeddingsRequestModel modelRequest) throws IOException, InterruptedException, OllamaBaseException {
         URI uri = URI.create(this.host + "/api/embeddings");
         String jsonData = modelRequest.toString();
         HttpClient httpClient = HttpClient.newHttpClient();
-        HttpRequest.Builder requestBuilder =
+        HttpRequest.Builder requestBuilder = getRequestBuilderDefault(uri).header("Accept", "application/json").POST(HttpRequest.BodyPublishers.ofString(jsonData));
-                getRequestBuilderDefault(uri)
-                        .header("Accept", "application/json")
-                        .POST(HttpRequest.BodyPublishers.ofString(jsonData));
         HttpRequest request = requestBuilder.build();
         HttpResponse<String> response = httpClient.send(request, HttpResponse.BodyHandlers.ofString());
         int statusCode = response.statusCode();
         String responseBody = response.body();
         if (statusCode == 200) {
-            OllamaEmbeddingResponseModel embeddingResponse =
+            OllamaEmbeddingResponseModel embeddingResponse = Utils.getObjectMapper().readValue(responseBody, OllamaEmbeddingResponseModel.class);
-                    Utils.getObjectMapper().readValue(responseBody, OllamaEmbeddingResponseModel.class);
             return embeddingResponse.getEmbedding();
         } else {
             throw new OllamaBaseException(statusCode + " - " + responseBody);
         }
     }
 
+    /**
+     * Generate embeddings for a given text from a model
+     *
+     * @param model  name of model to generate embeddings from
+     * @param inputs text/s to generate embeddings for
+     * @return embeddings
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     */
+    public OllamaEmbedResponseModel embed(String model, List<String> inputs) throws IOException, InterruptedException, OllamaBaseException {
+        return embed(new OllamaEmbedRequestModel(model, inputs));
+    }
+
+    /**
+     * Generate embeddings using a {@link OllamaEmbedRequestModel}.
+     *
+     * @param modelRequest request for '/api/embed' endpoint
+     * @return embeddings
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     */
+    public OllamaEmbedResponseModel embed(OllamaEmbedRequestModel modelRequest) throws IOException, InterruptedException, OllamaBaseException {
+        URI uri = URI.create(this.host + "/api/embed");
+        String jsonData = Utils.getObjectMapper().writeValueAsString(modelRequest);
+        HttpClient httpClient = HttpClient.newHttpClient();
+
+        HttpRequest request = HttpRequest.newBuilder(uri).header("Accept", "application/json").POST(HttpRequest.BodyPublishers.ofString(jsonData)).build();
+
+        HttpResponse<String> response = httpClient.send(request, HttpResponse.BodyHandlers.ofString());
+        int statusCode = response.statusCode();
+        String responseBody = response.body();
+
+        if (statusCode == 200) {
+            return Utils.getObjectMapper().readValue(responseBody, OllamaEmbedResponseModel.class);
+        } else {
+            throw new OllamaBaseException(statusCode + " - " + responseBody);
+        }
+    }
 
     /**
      * Generate response for a question to a model running on Ollama server. This is a sync/blocking
@@ -387,9 +406,11 @@ public class OllamaAPI {
      *                      details on the options</a>
      * @param streamHandler optional callback consumer that will be applied every time a streamed response is received. If not set, the stream parameter of the request is set to false.
      * @return OllamaResult that includes response text and time taken for response
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
      */
-    public OllamaResult generate(String model, String prompt, boolean raw, Options options, OllamaStreamHandler streamHandler)
+    public OllamaResult generate(String model, String prompt, boolean raw, Options options, OllamaStreamHandler streamHandler) throws OllamaBaseException, IOException, InterruptedException {
-            throws OllamaBaseException, IOException, InterruptedException {
         OllamaGenerateRequest ollamaRequestModel = new OllamaGenerateRequest(model, prompt);
         ollamaRequestModel.setRaw(raw);
         ollamaRequestModel.setOptions(options.getOptionsMap());
@@ -406,13 +427,14 @@ public class OllamaAPI {
      * @param raw     In some cases, you may wish to bypass the templating system and provide a full prompt. In this case, you can use the raw parameter to disable templating. Also note that raw mode will not return a context.
      * @param options Additional options or configurations to use when generating the response.
      * @return {@link OllamaResult}
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
      */
-    public OllamaResult generate(String model, String prompt, boolean raw, Options options)
+    public OllamaResult generate(String model, String prompt, boolean raw, Options options) throws OllamaBaseException, IOException, InterruptedException {
-            throws OllamaBaseException, IOException, InterruptedException {
         return generate(model, prompt, raw, options, null);
     }
 
-
     /**
      * Generates response using the specified AI model and prompt (in blocking mode), and then invokes a set of tools
      * on the generated response.
@@ -421,13 +443,11 @@ public class OllamaAPI {
      * @param prompt  The input text or prompt to provide to the AI model.
      * @param options Additional options or configurations to use when generating the response.
      * @return {@link OllamaToolsResult} An OllamaToolsResult object containing the response from the AI model and the results of invoking the tools on that output.
-     * @throws OllamaBaseException  If there is an error related to the Ollama API or service.
+     * @throws OllamaBaseException  if the response indicates an error status
-     * @throws IOException          If there is an error related to input/output operations.
+     * @throws IOException          if an I/O error occurs during the HTTP request
-     * @throws InterruptedException If the method is interrupted while waiting for the AI model
+     * @throws InterruptedException if the operation is interrupted
-     *                              to generate the response or for the tools to be invoked.
      */
-    public OllamaToolsResult generateWithTools(String model, String prompt, Options options)
+    public OllamaToolsResult generateWithTools(String model, String prompt, Options options) throws OllamaBaseException, IOException, InterruptedException, ToolInvocationException {
-            throws OllamaBaseException, IOException, InterruptedException, ToolInvocationException {
         boolean raw = true;
         OllamaToolsResult toolResult = new OllamaToolsResult();
         Map<ToolFunctionCallSpec, Object> toolResults = new HashMap<>();
@@ -448,7 +468,6 @@ public class OllamaAPI {
         return toolResult;
     }
 
-
     /**
      * Generate response for a question to a model running on Ollama server and get a callback handle
      * that can be used to check for status and get the response from the model later. This would be
@@ -462,9 +481,7 @@ public class OllamaAPI {
         OllamaGenerateRequest ollamaRequestModel = new OllamaGenerateRequest(model, prompt);
         ollamaRequestModel.setRaw(raw);
         URI uri = URI.create(this.host + "/api/generate");
-        OllamaAsyncResultStreamer ollamaAsyncResultStreamer =
+        OllamaAsyncResultStreamer ollamaAsyncResultStreamer = new OllamaAsyncResultStreamer(getRequestBuilderDefault(uri), ollamaRequestModel, requestTimeoutSeconds);
-                new OllamaAsyncResultStreamer(
-                        getRequestBuilderDefault(uri), ollamaRequestModel, requestTimeoutSeconds);
         ollamaAsyncResultStreamer.start();
         return ollamaAsyncResultStreamer;
     }
@@ -481,10 +498,11 @@ public class OllamaAPI {
      *                      details on the options</a>
      * @param streamHandler optional callback consumer that will be applied every time a streamed response is received. If not set, the stream parameter of the request is set to false.
      * @return OllamaResult that includes response text and time taken for response
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
      */
-    public OllamaResult generateWithImageFiles(
+    public OllamaResult generateWithImageFiles(String model, String prompt, List<File> imageFiles, Options options, OllamaStreamHandler streamHandler) throws OllamaBaseException, IOException, InterruptedException {
-            String model, String prompt, List<File> imageFiles, Options options, OllamaStreamHandler streamHandler)
-            throws OllamaBaseException, IOException, InterruptedException {
         List<String> images = new ArrayList<>();
         for (File imageFile : imageFiles) {
             images.add(encodeFileToBase64(imageFile));
@@ -498,10 +516,12 @@ public class OllamaAPI {
      * Convenience method to call Ollama API without streaming responses.
      * <p>
      * Uses {@link #generateWithImageFiles(String, String, List, Options, OllamaStreamHandler)}
+     *
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
      */
-    public OllamaResult generateWithImageFiles(
+    public OllamaResult generateWithImageFiles(String model, String prompt, List<File> imageFiles, Options options) throws OllamaBaseException, IOException, InterruptedException {
-            String model, String prompt, List<File> imageFiles, Options options)
-            throws OllamaBaseException, IOException, InterruptedException {
         return generateWithImageFiles(model, prompt, imageFiles, options, null);
     }
 
@@ -517,10 +537,12 @@ public class OllamaAPI {
      *                      details on the options</a>
      * @param streamHandler optional callback consumer that will be applied every time a streamed response is received. If not set, the stream parameter of the request is set to false.
      * @return OllamaResult that includes response text and time taken for response
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public OllamaResult generateWithImageURLs(
+    public OllamaResult generateWithImageURLs(String model, String prompt, List<String> imageURLs, Options options, OllamaStreamHandler streamHandler) throws OllamaBaseException, IOException, InterruptedException, URISyntaxException {
-            String model, String prompt, List<String> imageURLs, Options options, OllamaStreamHandler streamHandler)
-            throws OllamaBaseException, IOException, InterruptedException, URISyntaxException {
         List<String> images = new ArrayList<>();
         for (String imageURL : imageURLs) {
             images.add(encodeByteArrayToBase64(Utils.loadImageBytesFromUrl(imageURL)));
@@ -534,14 +556,16 @@ public class OllamaAPI {
      * Convenience method to call Ollama API without streaming responses.
      * <p>
      * Uses {@link #generateWithImageURLs(String, String, List, Options, OllamaStreamHandler)}
+     *
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
+     * @throws URISyntaxException   if the URI for the request is malformed
      */
-    public OllamaResult generateWithImageURLs(String model, String prompt, List<String> imageURLs,
+    public OllamaResult generateWithImageURLs(String model, String prompt, List<String> imageURLs, Options options) throws OllamaBaseException, IOException, InterruptedException, URISyntaxException {
-                                              Options options)
-            throws OllamaBaseException, IOException, InterruptedException, URISyntaxException {
         return generateWithImageURLs(model, prompt, imageURLs, options, null);
     }
 
-
     /**
      * Ask a question to a model based on a given message stack (i.e. a chat history). Creates a synchronous call to the api
      * 'api/chat'.
@@ -552,6 +576,9 @@ public class OllamaAPI {
      * @throws OllamaBaseException  any response code than 200 has been returned
      * @throws IOException          in case the responseStream can not be read
      * @throws InterruptedException in case the server is not reachable or network issues happen
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
      */
     public OllamaChatResult chat(String model, List<OllamaChatMessage> messages) throws OllamaBaseException, IOException, InterruptedException {
         OllamaChatRequestBuilder builder = OllamaChatRequestBuilder.getInstance(model);
@@ -568,6 +595,9 @@ public class OllamaAPI {
      * @throws OllamaBaseException  any response code than 200 has been returned
      * @throws IOException          in case the responseStream can not be read
      * @throws InterruptedException in case the server is not reachable or network issues happen
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
      */
     public OllamaChatResult chat(OllamaChatRequest request) throws OllamaBaseException, IOException, InterruptedException {
         return chat(request, null);
@@ -584,6 +614,9 @@ public class OllamaAPI {
      * @throws OllamaBaseException  any response code than 200 has been returned
      * @throws IOException          in case the responseStream can not be read
      * @throws InterruptedException in case the server is not reachable or network issues happen
+     * @throws OllamaBaseException  if the response indicates an error status
+     * @throws IOException          if an I/O error occurs during the HTTP request
+     * @throws InterruptedException if the operation is interrupted
      */
     public OllamaChatResult chat(OllamaChatRequest request, OllamaStreamHandler streamHandler) throws OllamaBaseException, IOException, InterruptedException {
         OllamaChatEndpointCaller requestCaller = new OllamaChatEndpointCaller(host, basicAuth, requestTimeoutSeconds, verbose);
@@ -601,6 +634,37 @@ public class OllamaAPI {
         toolRegistry.addFunction(toolSpecification.getFunctionName(), toolSpecification.getToolDefinition());
     }
 
+    /**
+     * Adds a custom role.
+     *
+     * @param roleName the name of the custom role to be added
+     * @return the newly created OllamaChatMessageRole
+     */
+    public OllamaChatMessageRole addCustomRole(String roleName) {
+        return OllamaChatMessageRole.newCustomRole(roleName);
+    }
+
+    /**
+     * Lists all available roles.
+     *
+     * @return a list of available OllamaChatMessageRole objects
+     */
+    public List<OllamaChatMessageRole> listRoles() {
+        return OllamaChatMessageRole.getRoles();
+    }
+
+    /**
+     * Retrieves a specific role by name.
+     *
+     * @param roleName the name of the role to retrieve
+     * @return the OllamaChatMessageRole associated with the given name
+     * @throws RoleNotFoundException if the role with the specified name does not exist
+     */
+    public OllamaChatMessageRole getRole(String roleName) throws RoleNotFoundException {
+        return OllamaChatMessageRole.getRole(roleName);
+    }
+
+
     // technical private methods //
 
     private static String encodeFileToBase64(File file) throws IOException {
@@ -611,11 +675,8 @@ public class OllamaAPI {
         return Base64.getEncoder().encodeToString(bytes);
     }
 
-    private OllamaResult generateSyncForOllamaRequestModel(
+    private OllamaResult generateSyncForOllamaRequestModel(OllamaGenerateRequest ollamaRequestModel, OllamaStreamHandler streamHandler) throws OllamaBaseException, IOException, InterruptedException {
-            OllamaGenerateRequest ollamaRequestModel, OllamaStreamHandler streamHandler)
+        OllamaGenerateEndpointCaller requestCaller = new OllamaGenerateEndpointCaller(host, basicAuth, requestTimeoutSeconds, verbose);
-            throws OllamaBaseException, IOException, InterruptedException {
-        OllamaGenerateEndpointCaller requestCaller =
-                new OllamaGenerateEndpointCaller(host, basicAuth, requestTimeoutSeconds, verbose);
         OllamaResult result;
         if (streamHandler != null) {
             ollamaRequestModel.setStream(true);
@@ -633,10 +694,7 @@ public class OllamaAPI {
      * @return HttpRequest.Builder
      */
     private HttpRequest.Builder getRequestBuilderDefault(URI uri) {
-        HttpRequest.Builder requestBuilder =
+        HttpRequest.Builder requestBuilder = HttpRequest.newBuilder(uri).header("Content-Type", "application/json").timeout(Duration.ofSeconds(requestTimeoutSeconds));
-                HttpRequest.newBuilder(uri)
-                        .header("Content-Type", "application/json")
-                        .timeout(Duration.ofSeconds(requestTimeoutSeconds));
         if (isBasicAuthCredentialsSet()) {
             requestBuilder.header("Authorization", getBasicAuthHeaderValue());
         }
@@ -662,7 +720,6 @@ public class OllamaAPI {
         return basicAuth != null;
     }
 
-
     private Object invokeTool(ToolFunctionCallSpec toolFunctionCallSpec) throws ToolInvocationException {
         try {
             String methodName = toolFunctionCallSpec.getName();

src/main/java/io/github/ollama4j/exceptions/RoleNotFoundException.java

@@ -0,0 +1,8 @@
+package io.github.ollama4j.exceptions;
+
+public class RoleNotFoundException extends Exception {
+
+    public RoleNotFoundException(String s) {
+        super(s);
+    }
+}

src/main/java/io/github/ollama4j/models/chat/OllamaChatMessageRole.java

@@ -1,19 +1,53 @@
 package io.github.ollama4j.models.chat;
 
 import com.fasterxml.jackson.annotation.JsonValue;
+import io.github.ollama4j.exceptions.RoleNotFoundException;
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Defines the possible Chat Message roles.
  */
-public enum OllamaChatMessageRole {
+@Getter
-    SYSTEM("system"),
+public class OllamaChatMessageRole {
-    USER("user"),
+    private static final List<OllamaChatMessageRole> ROLES = new ArrayList<>();
-    ASSISTANT("assistant");
+
+    public static final OllamaChatMessageRole SYSTEM = new OllamaChatMessageRole("system");
+    public static final OllamaChatMessageRole USER = new OllamaChatMessageRole("user");
+    public static final OllamaChatMessageRole ASSISTANT = new OllamaChatMessageRole("assistant");
+    public static final OllamaChatMessageRole TOOL = new OllamaChatMessageRole("tool");
 
     @JsonValue
-    private String roleName;
+    private final String roleName;
 
-    private OllamaChatMessageRole(String roleName){
+    private OllamaChatMessageRole(String roleName) {
         this.roleName = roleName;
+        ROLES.add(this);
+    }
+
+    public static OllamaChatMessageRole newCustomRole(String roleName) {
+        OllamaChatMessageRole customRole = new OllamaChatMessageRole(roleName);
+        ROLES.add(customRole);
+        return customRole;
+    }
+
+    public static List<OllamaChatMessageRole> getRoles() {
+        return new ArrayList<>(ROLES);
+    }
+
+    public static OllamaChatMessageRole getRole(String roleName) throws RoleNotFoundException {
+        for (OllamaChatMessageRole role : ROLES) {
+            if (role.roleName.equals(roleName)) {
+                return role;
+            }
+        }
+        throw new RoleNotFoundException("Invalid role name: " + roleName);
+    }
+
+    @Override
+    public String toString() {
+        return roleName;
     }
 }

src/main/java/io/github/ollama4j/models/chat/OllamaChatResult.java

@@ -8,12 +8,11 @@ import io.github.ollama4j.models.response.OllamaResult;
  * Specific chat-API result that contains the chat history sent to the model and appends the answer as {@link OllamaChatResult} given by the
  * {@link OllamaChatMessageRole#ASSISTANT} role.
  */
-public class OllamaChatResult extends OllamaResult{
+public class OllamaChatResult extends OllamaResult {
 
     private List<OllamaChatMessage> chatHistory;
 
-    public OllamaChatResult(String response, long responseTime, int httpStatusCode,
+    public OllamaChatResult(String response, long responseTime, int httpStatusCode, List<OllamaChatMessage> chatHistory) {
-            List<OllamaChatMessage> chatHistory) {
         super(response, responseTime, httpStatusCode);
         this.chatHistory = chatHistory;
         appendAnswerToChatHistory(response);
@@ -21,12 +20,10 @@ public class OllamaChatResult extends OllamaResult{
 
     public List<OllamaChatMessage> getChatHistory() {
         return chatHistory;
-    } 
+    }
 
-    private void appendAnswerToChatHistory(String answer){
+    private void appendAnswerToChatHistory(String answer) {
         OllamaChatMessage assistantMessage = new OllamaChatMessage(OllamaChatMessageRole.ASSISTANT, answer);
         this.chatHistory.add(assistantMessage);
     }
-    
-    
 }

src/main/java/io/github/ollama4j/models/embeddings/OllamaEmbedRequestModel.java

@@ -0,0 +1,41 @@
+package io.github.ollama4j.models.embeddings;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.NonNull;
+import lombok.RequiredArgsConstructor;
+
+import java.util.List;
+import java.util.Map;
+
+import static io.github.ollama4j.utils.Utils.getObjectMapper;
+
+@Data
+@RequiredArgsConstructor
+@NoArgsConstructor
+public class OllamaEmbedRequestModel {
+    @NonNull
+    private String model;
+
+    @NonNull
+    private List<String> input;
+
+    private Map<String, Object> options;
+
+    @JsonProperty(value = "keep_alive")
+    private String keepAlive;
+
+    @JsonProperty(value = "truncate")
+    private Boolean truncate = true;
+
+    @Override
+    public String toString() {
+        try {
+            return getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(this);
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

src/main/java/io/github/ollama4j/models/embeddings/OllamaEmbedResponseModel.java

@@ -0,0 +1,25 @@
+package io.github.ollama4j.models.embeddings;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+import java.util.List;
+
+@SuppressWarnings("unused")
+@Data
+public class OllamaEmbedResponseModel {
+    @JsonProperty("model")
+    private String model;
+
+    @JsonProperty("embeddings")
+    private List<List<Double>> embeddings;
+
+    @JsonProperty("total_duration")
+    private long totalDuration;
+
+    @JsonProperty("load_duration")
+    private long loadDuration;
+
+    @JsonProperty("prompt_eval_count")
+    private int promptEvalCount;
+}

src/main/java/io/github/ollama4j/types/OllamaModelType.java

@@ -10,12 +10,9 @@ package io.github.ollama4j.types;
 public class OllamaModelType {
     public static final String GEMMA = "gemma";
     public static final String GEMMA2 = "gemma2";
-
-
     public static final String LLAMA2 = "llama2";
     public static final String LLAMA3 = "llama3";
     public static final String LLAMA3_1 = "llama3.1";
-
     public static final String MISTRAL = "mistral";
     public static final String MIXTRAL = "mixtral";
     public static final String LLAVA = "llava";
@@ -35,7 +32,6 @@ public class OllamaModelType {
     public static final String ZEPHYR = "zephyr";
     public static final String OPENHERMES = "openhermes";
     public static final String QWEN = "qwen";
-
     public static final String QWEN2 = "qwen2";
     public static final String WIZARDCODER = "wizardcoder";
     public static final String LLAMA2_CHINESE = "llama2-chinese";

src/main/java/io/github/ollama4j/utils/OptionsBuilder.java

@@ -1,5 +1,6 @@
 package io.github.ollama4j.utils;
 
+import java.io.IOException;
 import java.util.HashMap;
 
 /** Builder class for creating options for Ollama model. */
@@ -207,6 +208,34 @@ public class OptionsBuilder {
     return this;
   }
 
+  /**
+   * Alternative to the top_p, and aims to ensure a balance of qualityand variety. The parameter p
+   * represents the minimum probability for a token to be considered, relative to the probability
+   * of the most likely token. For example, with p=0.05 and the most likely token having a
+   * probability of 0.9, logits with a value less than 0.045 are filtered out. (Default: 0.0)
+   */
+  public OptionsBuilder setMinP(float value) {
+    options.getOptionsMap().put("min_p", value);
+    return this;
+  }
+
+  /**
+   * Allows passing an option not formally supported by the library
+   * @param name The option name for the parameter.
+   * @param value The value for the "{name}" parameter.
+   * @return The updated OptionsBuilder.
+   * @throws IllegalArgumentException if parameter has an unsupported type
+   */
+  public OptionsBuilder setCustomOption(String name, Object value) throws IllegalArgumentException {
+    if (!(value instanceof Integer || value instanceof Float || value instanceof String)) {
+      throw new IllegalArgumentException("Invalid type for parameter. Allowed types are: Integer, Float, or String.");
+    }
+    options.getOptionsMap().put(name, value);
+    return this;
+  }
+
+
+
   /**
    * Builds the options map.
    *
@@ -215,4 +244,6 @@ public class OptionsBuilder {
   public Options build() {
     return options;
   }
+
+
 }

src/test/java/io/github/ollama4j/unittests/TestMockedAPIs.java

@@ -2,6 +2,10 @@ package io.github.ollama4j.unittests;
 
 import io.github.ollama4j.OllamaAPI;
 import io.github.ollama4j.exceptions.OllamaBaseException;
+import io.github.ollama4j.exceptions.RoleNotFoundException;
+import io.github.ollama4j.models.chat.OllamaChatMessageRole;
+import io.github.ollama4j.models.embeddings.OllamaEmbedRequestModel;
+import io.github.ollama4j.models.embeddings.OllamaEmbedResponseModel;
 import io.github.ollama4j.models.response.ModelDetail;
 import io.github.ollama4j.models.response.OllamaAsyncResultStreamer;
 import io.github.ollama4j.models.response.OllamaResult;
@@ -14,7 +18,9 @@ import java.io.IOException;
 import java.net.URISyntaxException;
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.List;
 
+import static org.junit.jupiter.api.Assertions.*;
 import static org.mockito.Mockito.*;
 
 class TestMockedAPIs {
@@ -97,6 +103,34 @@ class TestMockedAPIs {
         }
     }
 
+    @Test
+    void testEmbed() {
+        OllamaAPI ollamaAPI = Mockito.mock(OllamaAPI.class);
+        String model = OllamaModelType.LLAMA2;
+        List<String> inputs = List.of("some prompt text");
+        try {
+            when(ollamaAPI.embed(model, inputs)).thenReturn(new OllamaEmbedResponseModel());
+            ollamaAPI.embed(model, inputs);
+            verify(ollamaAPI, times(1)).embed(model, inputs);
+        } catch (IOException | OllamaBaseException | InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Test
+    void testEmbedWithEmbedRequestModel() {
+        OllamaAPI ollamaAPI = Mockito.mock(OllamaAPI.class);
+        String model = OllamaModelType.LLAMA2;
+        List<String> inputs = List.of("some prompt text");
+        try {
+            when(ollamaAPI.embed(new OllamaEmbedRequestModel(model, inputs))).thenReturn(new OllamaEmbedResponseModel());
+            ollamaAPI.embed(new OllamaEmbedRequestModel(model, inputs));
+            verify(ollamaAPI, times(1)).embed(new OllamaEmbedRequestModel(model, inputs));
+        } catch (IOException | OllamaBaseException | InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     @Test
     void testAsk() {
         OllamaAPI ollamaAPI = Mockito.mock(OllamaAPI.class);
@@ -161,4 +195,68 @@ class TestMockedAPIs {
         ollamaAPI.generateAsync(model, prompt, false);
         verify(ollamaAPI, times(1)).generateAsync(model, prompt, false);
     }
+
+    @Test
+    void testAddCustomRole() {
+        OllamaAPI ollamaAPI = mock(OllamaAPI.class);
+        String roleName = "custom-role";
+        OllamaChatMessageRole expectedRole = OllamaChatMessageRole.newCustomRole(roleName);
+        when(ollamaAPI.addCustomRole(roleName)).thenReturn(expectedRole);
+        OllamaChatMessageRole customRole = ollamaAPI.addCustomRole(roleName);
+        assertEquals(expectedRole, customRole);
+        verify(ollamaAPI, times(1)).addCustomRole(roleName);
+    }
+
+    @Test
+    void testListRoles() {
+        OllamaAPI ollamaAPI = Mockito.mock(OllamaAPI.class);
+        OllamaChatMessageRole role1 = OllamaChatMessageRole.newCustomRole("role1");
+        OllamaChatMessageRole role2 = OllamaChatMessageRole.newCustomRole("role2");
+        List<OllamaChatMessageRole> expectedRoles = List.of(role1, role2);
+        when(ollamaAPI.listRoles()).thenReturn(expectedRoles);
+        List<OllamaChatMessageRole> actualRoles = ollamaAPI.listRoles();
+        assertEquals(expectedRoles, actualRoles);
+        verify(ollamaAPI, times(1)).listRoles();
+    }
+
+    @Test
+    void testGetRoleNotFound() {
+        OllamaAPI ollamaAPI = mock(OllamaAPI.class);
+        String roleName = "non-existing-role";
+        try {
+            when(ollamaAPI.getRole(roleName)).thenThrow(new RoleNotFoundException("Role not found"));
+        } catch (RoleNotFoundException exception) {
+            throw new RuntimeException("Failed to run test: testGetRoleNotFound");
+        }
+        try {
+            ollamaAPI.getRole(roleName);
+            fail("Expected RoleNotFoundException not thrown");
+        } catch (RoleNotFoundException exception) {
+            assertEquals("Role not found", exception.getMessage());
+        }
+        try {
+            verify(ollamaAPI, times(1)).getRole(roleName);
+        } catch (RoleNotFoundException exception) {
+            throw new RuntimeException("Failed to run test: testGetRoleNotFound");
+        }
+    }
+
+    @Test
+    void testGetRoleFound() {
+        OllamaAPI ollamaAPI = mock(OllamaAPI.class);
+        String roleName = "existing-role";
+        OllamaChatMessageRole expectedRole = OllamaChatMessageRole.newCustomRole(roleName);
+        try {
+            when(ollamaAPI.getRole(roleName)).thenReturn(expectedRole);
+        } catch (RoleNotFoundException exception) {
+            throw new RuntimeException("Failed to run test: testGetRoleFound");
+        }
+        try {
+            OllamaChatMessageRole actualRole = ollamaAPI.getRole(roleName);
+            assertEquals(expectedRole, actualRole);
+            verify(ollamaAPI, times(1)).getRole(roleName);
+        } catch (RoleNotFoundException exception) {
+            throw new RuntimeException("Failed to run test: testGetRoleFound");
+        }
+    }
 }

src/test/java/io/github/ollama4j/unittests/jackson/TestChatRequestSerialization.java

@@ -1,6 +1,7 @@
 package io.github.ollama4j.unittests.jackson;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrowsExactly;
 
 import java.io.File;
 import java.util.List;
@@ -59,6 +60,10 @@ public class TestChatRequestSerialization extends AbstractSerializationTest<Olla
             .withOptions(b.setSeed(1).build())
             .withOptions(b.setTopK(1).build())
             .withOptions(b.setTopP(1).build())
+            .withOptions(b.setMinP(1).build())
+            .withOptions(b.setCustomOption("cust_float", 1.0f).build())
+            .withOptions(b.setCustomOption("cust_int", 1).build())
+            .withOptions(b.setCustomOption("cust_str", "custom").build())
             .build();
 
         String jsonRequest = serialize(req);
@@ -72,6 +77,20 @@ public class TestChatRequestSerialization extends AbstractSerializationTest<Olla
         assertEquals(1, deserializeRequest.getOptions().get("seed"));
         assertEquals(1, deserializeRequest.getOptions().get("top_k"));
         assertEquals(1.0, deserializeRequest.getOptions().get("top_p"));
+        assertEquals(1.0, deserializeRequest.getOptions().get("min_p"));
+        assertEquals(1.0, deserializeRequest.getOptions().get("cust_float"));
+        assertEquals(1, deserializeRequest.getOptions().get("cust_int"));
+        assertEquals("custom", deserializeRequest.getOptions().get("cust_str"));
+    }
+
+    @Test
+    public void testRequestWithInvalidCustomOption() {
+        OptionsBuilder b = new OptionsBuilder();
+        assertThrowsExactly(IllegalArgumentException.class, () -> {
+                OllamaChatRequest req = builder.withMessage(OllamaChatMessageRole.USER, "Some prompt")
+                .withOptions(b.setCustomOption("cust_obj", new Object()).build())
+                .build();
+        });
     }
 
     @Test