fix(groq): Feature/groq response format improvements (#6754)

Co-authored-by: jacoblee93 <jacoblee93@gmail.com>

Author: allohamora

docs/core_docs/docs/integrations/chat/groq.ipynb

@@ -145,11 +145,11 @@
    ],
    "source": [
     "const aiMsg = await llm.invoke([\n",
-    "    [\n",
-    "        \"system\",\n",
-    "        \"You are a helpful assistant that translates English to French. Translate the user sentence.\",\n",
-    "    ],\n",
-    "    [\"human\", \"I love programming.\"],\n",
+    "    {\n",
+    "      role: \"system\",\n",
+    "      content: \"You are a helpful assistant that translates English to French. Translate the user sentence.\",\n",
+    "    },\n",
+    "    { role: \"user\", content: \"I love programming.\" },\n",
     "])\n",
     "aiMsg"
    ]
@@ -174,6 +174,50 @@
     "console.log(aiMsg.content)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "ce0414fe",
+   "metadata": {},
+   "source": [
+    "## Json invocation"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "3f0a7a2a",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{\n",
+      "  aiInvokeMsgContent: '{\\n\"result\": 6\\n}',\n",
+      "  aiBindMsg: '{\\n\"result\": 6\\n}'\n",
+      "}\n"
+     ]
+    }
+   ],
+   "source": [
+    "const messages = [\n",
+    "  {\n",
+    "    role: \"system\",\n",
+    "    content: \"You are a math tutor that handles math exercises and makes output in json in format { result: number }.\",\n",
+    "  },\n",
+    "  { role: \"user\",  content: \"2 + 2 * 2\" },\n",
+    "];\n",
+    "\n",
+    "const aiInvokeMsg = await llm.invoke(messages, { response_format: { type: \"json_object\" } });\n",
+    "\n",
+    "// if you want not to pass response_format in every invoke, you can bind it to the instance\n",
+    "const llmWithResponseFormat = llm.bind({ response_format: { type: \"json_object\" } });\n",
+    "const aiBindMsg = await llmWithResponseFormat.invoke(messages);\n",
+    "\n",
+    "// they are the same\n",
+    "console.log({ aiInvokeMsgContent: aiInvokeMsg.content, aiBindMsg: aiBindMsg.content });"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "18e2bfc0-7e78-4528-a73f-499ac150dca8",
@@ -186,7 +230,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 5,
    "id": "e197d1d7-a070-4c96-9f8a-a0e86d046e0b",
    "metadata": {},
    "outputs": [

libs/langchain-groq/src/chat_models.ts

@@ -42,6 +42,7 @@ import {
   ChatCompletionCreateParams,
   ChatCompletionCreateParamsNonStreaming,
   ChatCompletionCreateParamsStreaming,
+  CompletionCreateParams,
 } from "groq-sdk/resources/chat/completions";
 import {
   Runnable,
@@ -73,7 +74,7 @@ export interface ChatGroqCallOptions extends BaseChatModelCallOptions {
   headers?: Record<string, string>;
   tools?: ChatGroqToolType[];
   tool_choice?: OpenAIClient.ChatCompletionToolChoiceOption | "any" | string;
-  response_format?: { type: "json_object" };
+  response_format?: CompletionCreateParams.ResponseFormat;
 }
 
 export interface ChatGroqInput extends BaseChatModelParams {