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```typescript
import "dotenv/config";
import { VoltAgent, VoltOpsClient, Agent, Memory } from "@voltagent/core";
import { LibSQLMemoryAdapter } from "@voltagent/libsql";
import { createPinoLogger } from "@voltagent/logger";
import { openai } from "@ai-sdk/openai";
import { honoServer } from "@voltagent/server-hono";
import { z } from "zod";
import { listMenuItemsTool, createOrderTool, checkOrderStatusTool } from "./tools";
import { handleWhatsAppMessage, handleWhatsAppVerification } from "./webhooks/whatsapp";
// Create a logger instance
const logger = createPinoLogger({
name: "with-whatsapp",
level: "info",
});
// Define working memory schema with Zod
const workingMemorySchema = z.object({
orders: z
.array(
z.object({
menuItemId: z.number(),
itemName: z.string(),
quantity: z.number(),
price: z.number(),
})
)
.default([]),
deliveryAddress: z.string().default(""),
customerNotes: z.string().default(""),
orderStatus: z.enum(["selecting", "address_needed", "completed"]).default("selecting"),
});
// Configure persistent memory with working memory enabled
const memory = new Memory({
storage: new LibSQLMemoryAdapter({
url: "file:./.voltagent/memory.db",
logger: logger.child({ component: "libsql" }),
}),
workingMemory: {
enabled: true,
scope: "conversation", // Store per conversation
schema: workingMemorySchema,
},
});
const agent = new Agent({
name: "with-whatsapp",
instructions: `You are a WhatsApp ordering AI agent. Your task is to take food orders from customers.
Order Flow:
- If orders array is empty, show menu
- Ask customer to select items
2. When customer orders:
- Get selected item details from menu
- Keep orderStatus as "selecting"
- Ask if they want anything else
3. When customer doesn't want more items:
- Change orderStatus to "address_needed"
- Ask for delivery address
- Update deliveryAddress field when received
- Change orderStatus to "completed"
- Execute createOrder tool (with orders and deliveryAddress)
- Confirm order and clear working memory
Always be friendly and helpful. Start with "Welcome!" greeting.`,
model: openai("gpt-4o-mini"),
tools: [listMenuItemsTool, createOrderTool, checkOrderStatusTool],
memory,
});
new VoltAgent({
agents: {
agent,
},
server: honoServer({
configureApp: (app) => {
// WhatsApp webhook verification (GET)
app.get("/webhook/whatsapp", async (c) => {
return handleWhatsAppVerification(c);
});
// WhatsApp webhook message handler (POST)
app.post("/webhook/whatsapp", async (c) => {
return handleWhatsAppMessage(c, agent);
});
// Health check endpoint
app.get("/health", (c) => {
return c.json({
status: "healthy",
service: "whatsapp-ordering-agent",
timestamp: new Date().toISOString(),