initial commit

app/api/chat/route.ts

@@ -0,0 +1,18 @@
+import { GoogleGenerativeAI } from "@google/generative-ai";
+
+export async function POST(req: Request) {
+  const { message } = await req.json();
+
+  const genAI = new GoogleGenerativeAI(
+    process.env.GEMINI_API_KEY!
+  );
+
+  const model = genAI.getGenerativeModel({
+    model: "gemini-1.5-flash"
+  });
+
+  const result = await model.generateContent(message);
+  const text = result.response.text();
+
+  return Response.json({ reply: text });
+}

app/page.tsx

@@ -1,65 +1,37 @@
-import Image from "next/image";
+"use client";
+import { useState } from "react";
 
 export default function Home() {
+  const [input, setInput] = useState("");
+  const [messages, setMessages] = useState<string[]>([]);
+
+  const sendMessage = async () => {
+    const res = await fetch("/api/chat", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ message: input }),
+    });
+
+    const data = await res.json();
+    setMessages([...messages, "You: " + input, "AI: " + data.reply]);
+    setInput("");
+  };
+
   return (
-    <div className="flex min-h-screen items-center justify-center bg-zinc-50 font-sans dark:bg-black">
-      <main className="flex min-h-screen w-full max-w-3xl flex-col items-center justify-between py-32 px-16 bg-white dark:bg-black sm:items-start">
-        <Image
-          className="dark:invert"
-          src="/next.svg"
-          alt="Next.js logo"
-          width={100}
-          height={20}
-          priority
-        />
-        <div className="flex flex-col items-center gap-6 text-center sm:items-start sm:text-left">
-          <h1 className="max-w-xs text-3xl font-semibold leading-10 tracking-tight text-black dark:text-zinc-50">
-            To get started, edit the page.tsx file.
-          </h1>
-          <p className="max-w-md text-lg leading-8 text-zinc-600 dark:text-zinc-400">
-            Looking for a starting point or more instructions? Head over to{" "}
-            <a
-              href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Templates
-            </a>{" "}
-            or the{" "}
-            <a
-              href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Learning
-            </a>{" "}
-            center.
-          </p>
-        </div>
-        <div className="flex flex-col gap-4 text-base font-medium sm:flex-row">
-          <a
-            className="flex h-12 w-full items-center justify-center gap-2 rounded-full bg-foreground px-5 text-background transition-colors hover:bg-[#383838] dark:hover:bg-[#ccc] md:w-[158px]"
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={16}
-              height={16}
-            />
-            Deploy Now
-          </a>
-          <a
-            className="flex h-12 w-full items-center justify-center rounded-full border border-solid border-black/[.08] px-5 transition-colors hover:border-transparent hover:bg-black/[.04] dark:border-white/[.145] dark:hover:bg-[#1a1a1a] md:w-[158px]"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            Documentation
-          </a>
-        </div>
-      </main>
-    </div>
+    <main style={{ padding: 20 }}>
+      <h1>Gemini Chatbot</h1>
+
+      <div>
+        {messages.map((m, i) => (
+          <p key={i}>{m}</p>
+        ))}
+      </div>
+
+      <input
+        value={input}
+        onChange={(e) => setInput(e.target.value)}
+      />
+      <button onClick={sendMessage}>送信</button>
+    </main>
   );
 }

package-lock.json

@@ -8,6 +8,7 @@
       "name": "my-gemini-chatbot",
       "version": "0.1.0",
       "dependencies": {
+        "@google/generative-ai": "^0.24.1",
         "next": "16.1.6",
         "react": "19.2.3",
         "react-dom": "19.2.3"
@@ -454,6 +455,15 @@
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
+    "node_modules/@google/generative-ai": {
+      "version": "0.24.1",
+      "resolved": "https://registry.npmjs.org/@google/generative-ai/-/generative-ai-0.24.1.tgz",
+      "integrity": "sha512-MqO+MLfM6kjxcKoy0p1wRzG3b4ZZXtPI+z2IE26UogS2Cm/XHO+7gGRBh6gcJsOiIVoH93UwKvW4HdgiOZCy9Q==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
     "node_modules/@humanfs/core": {
       "version": "0.19.1",
       "resolved": "https://registry.npmjs.org/@humanfs/core/-/core-0.19.1.tgz",
@@ -3217,6 +3227,7 @@
       "integrity": "sha512-whOE1HFo/qJDyX4SnXzP4N6zOWn79WhnCUY/iDR0mPfQZO8wcYE4JClzI2oZrhBnnMUCBCHZhO6VQyoBU95mZA==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@rtsao/scc": "^1.1.0",
         "array-includes": "^3.1.9",

package.json

@@ -9,6 +9,7 @@
     "lint": "eslint"
   },
   "dependencies": {
+    "@google/generative-ai": "^0.24.1",
     "next": "16.1.6",
     "react": "19.2.3",
     "react-dom": "19.2.3"