feat: add function-calling example code

src/01-function-calling/example.ts

@@ -0,0 +1,41 @@
+/*
+ * Sample code from https://platform.openai.com/docs/api-reference/chat/create, lightly TS-ified
+ */
+
+import OpenAI from "openai"
+
+const openai = new OpenAI()
+
+const messages: OpenAI.Chat.Completions.ChatCompletionMessageParam[] = [
+  { role: "user", content: "What's the weather like in Boston today?" },
+]
+
+const tools: OpenAI.Chat.Completions.ChatCompletionTool[] = [
+  {
+    type: "function",
+    function: {
+      name: "get_current_weather",
+      description: "Get the current weather in a given location",
+      parameters: {
+        type: "object",
+        properties: {
+          location: {
+            type: "string",
+            description: "The city and state, e.g. San Francisco, CA",
+          },
+          unit: { type: "string", enum: ["celsius", "fahrenheit"] },
+        },
+        required: ["location"],
+      },
+    },
+  },
+]
+
+const response = await openai.chat.completions.create({
+  model: "gpt-3.5-turbo",
+  messages,
+  tools,
+  tool_choice: "auto",
+})
+
+console.log(response.choices[0])