chatgpt hello world with prompt

.env

@@ -0,0 +1 @@
+OPENAI_API_KEY="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"

.gitignore

@@ -11,3 +11,5 @@
 
 #!.yarn/cache
 .pnp.*
+
+node_modules

.yarnrc.yml

@@ -0,0 +1,3 @@
+nodeLinker: node-modules
+
+yarnPath: .yarn/releases/yarn-4.1.0.cjs

package.json

@@ -1,4 +1,14 @@
 {
   "name": "knowledge-sidekick",
-  "packageManager": "yarn@4.1.0"
+  "packageManager": "yarn@4.1.0",
+  "type": "module",
+  "dependencies": {
+    "@langchain/openai": "^0.0.14",
+    "cheerio": "^1.0.0-rc.12",
+    "dotenv": "^16.4.4",
+    "langchain": "^0.1.18"
+  },
+  "resolutions": {
+    "@langchain/core": "0.1.28"
+  }
 }

src/index.js

@@ -0,0 +1,23 @@
+import 'dotenv/config';
+import { ChatOpenAI } from "@langchain/openai";
+import { ChatPromptTemplate } from "@langchain/core/prompts";
+import { StringOutputParser } from "@langchain/core/output_parsers";
+
+const outputParser = new StringOutputParser();
+
+const prompt = ChatPromptTemplate.fromMessages([
+  ["system", "You are an old farmer"],
+  ["user", "{input}"],
+]);
+
+process.env.OPENAI_API_KEY;
+
+const chatModel = new ChatOpenAI({});
+
+const chain = prompt.pipe(chatModel).pipe(outputParser);
+
+const res = await await chain.invoke({
+  input: "Write a beautiful poem no longer than 5 lines including the phrase 'hello world'",
+});
+
+console.log(res);