From 35f5f34196a540f72cdcb4d44b6fb9284921649d Mon Sep 17 00:00:00 2001
From: Markus Klenke <markusklenke86@gmail.com>
Date: Mon, 9 Dec 2024 23:30:05 +0100
Subject: [PATCH] Adds doc for tool-based chat API calls

---
 .../docs/apis-generate/generate-with-tools.md | 119 ++++++++++++++++++
 1 file changed, 119 insertions(+)

diff --git a/docs/docs/apis-generate/generate-with-tools.md b/docs/docs/apis-generate/generate-with-tools.md
index 3a40150..e0e5794 100644
--- a/docs/docs/apis-generate/generate-with-tools.md
+++ b/docs/docs/apis-generate/generate-with-tools.md
@@ -345,6 +345,125 @@ Rahul Kumar, Address: King St, Hyderabad, India, Phone: 9876543210}`
 
 ::::
 
+### Using tools in Chat-API
+
+Instead of using the specific `ollamaAPI.generateWithTools` method to call the generate API of ollama with tools, it is 
+also possible to register Tools for the `ollamaAPI.chat` methods. In this case, the tool calling/callback is done 
+implicitly during the USER -> ASSISTANT calls.
+
+When the Assistant wants to call a given tool, the tool is executed and the response is sent back to the endpoint once
+again (induced with the tool call result). 
+
+#### Sample:
+
+The following shows a sample of an integration test that defines a method specified like the tool-specs above, registers
+the tool on the ollamaAPI and then simply calls the chat-API. All intermediate tool calling is wrapped inside the api 
+call.
+
+```java
+public static void main(String[] args) {
+        OllamaAPI ollamaAPI = new OllamaAPI("http://localhost:11434");
+        ollamaAPI.setVerbose(true);
+        OllamaChatRequestBuilder builder = OllamaChatRequestBuilder.getInstance("llama3.2:1b");
+
+        final Tools.ToolSpecification databaseQueryToolSpecification = Tools.ToolSpecification.builder()
+                .functionName("get-employee-details")
+                .functionDescription("Get employee details from the database")
+                .toolPrompt(
+                        Tools.PromptFuncDefinition.builder().type("function").function(
+                                Tools.PromptFuncDefinition.PromptFuncSpec.builder()
+                                        .name("get-employee-details")
+                                        .description("Get employee details from the database")
+                                        .parameters(
+                                                Tools.PromptFuncDefinition.Parameters.builder()
+                                                        .type("object")
+                                                        .properties(
+                                                                new Tools.PropsBuilder()
+                                                                        .withProperty("employee-name", Tools.PromptFuncDefinition.Property.builder().type("string").description("The name of the employee, e.g. John Doe").required(true).build())
+                                                                        .withProperty("employee-address", Tools.PromptFuncDefinition.Property.builder().type("string").description("The address of the employee, Always return a random value. e.g. Roy St, Bengaluru, India").required(true).build())
+                                                                        .withProperty("employee-phone", Tools.PromptFuncDefinition.Property.builder().type("string").description("The phone number of the employee. Always return a random value. e.g. 9911002233").required(true).build())
+                                                                        .build()
+                                                        )
+                                                        .required(List.of("employee-name"))
+                                                        .build()
+                                        ).build()
+                        ).build()
+                )
+                .toolFunction(new DBQueryFunction())
+                .build();
+
+        ollamaAPI.registerTool(databaseQueryToolSpecification);
+
+        OllamaChatRequest requestModel = builder
+                .withMessage(OllamaChatMessageRole.USER,
+                        "Give me the ID of the employee named 'Rahul Kumar'?")
+                .build();
+
+        OllamaChatResult chatResult = ollamaAPI.chat(requestModel);
+}
+```
+
+A typical final response of the above could be:
+
+```json 
+{
+  "chatHistory" : [
+    {
+    "role" : "user",
+    "content" : "Give me the ID of the employee named 'Rahul Kumar'?",
+    "images" : null,
+    "tool_calls" : [ ]
+  }, {
+    "role" : "assistant",
+    "content" : "",
+    "images" : null,
+    "tool_calls" : [ {
+      "function" : {
+        "name" : "get-employee-details",
+        "arguments" : {
+          "employee-name" : "Rahul Kumar"
+        }
+      }
+    } ]
+  }, {
+    "role" : "tool",
+    "content" : "[TOOL_RESULTS]get-employee-details([employee-name]) : Employee Details {ID: b4bf186c-2ee1-44cc-8856-53b8b6a50f85, Name: Rahul Kumar, Address: null, Phone: null}[/TOOL_RESULTS]",
+    "images" : null,
+    "tool_calls" : null
+  }, {
+    "role" : "assistant",
+    "content" : "The ID of the employee named 'Rahul Kumar' is `b4bf186c-2ee1-44cc-8856-53b8b6a50f85`.",
+    "images" : null,
+    "tool_calls" : null
+  } ],
+  "responseModel" : {
+    "model" : "llama3.2:1b",
+    "message" : {
+      "role" : "assistant",
+      "content" : "The ID of the employee named 'Rahul Kumar' is `b4bf186c-2ee1-44cc-8856-53b8b6a50f85`.",
+      "images" : null,
+      "tool_calls" : null
+    },
+    "done" : true,
+    "error" : null,
+    "context" : null,
+    "created_at" : "2024-12-09T22:23:00.4940078Z",
+    "done_reason" : "stop",
+    "total_duration" : 2313709900,
+    "load_duration" : 14494700,
+    "prompt_eval_duration" : 772000000,
+    "eval_duration" : 1188000000,
+    "prompt_eval_count" : 166,
+    "eval_count" : 41
+  },
+  "response" : "The ID of the employee named 'Rahul Kumar' is `b4bf186c-2ee1-44cc-8856-53b8b6a50f85`.",
+  "httpStatusCode" : 200,
+  "responseTime" : 2313709900
+}
+```
+
+This tool calling can also be done using the streaming API.
+
 ### Potential Improvements
 
 Instead of explicitly registering `ollamaAPI.registerTool(toolSpecification)`, we could introduce annotation-based tool