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roanbrasil
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devops-gitops-corpus

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- 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,
});
```
**Key points:**
- Uses `gpt-4o-mini` for cost-effective conversational responses
- Structured instructions define clear order flow states
- Tools array provides database operations capabilities
- Memory integration maintains conversation context across messages
- `name: "with-whatsapp"` identifies the agent in logs and traces
## WhatsApp Webhook Integration
<Info title="Connect your Meta app">
Work through the [WhatsApp Cloud API onboarding guide](https://developers.facebook.com/docs/whatsapp/cloud-api/get-started) to create a Meta app, provision a WhatsApp Business account, and register your webhook URL. The verification token, access token, and phone number ID you generate there drop straight into `.env` a...
</Info>
![](https://cdn.voltagent.dev/examples/meta.png)
Here are the WhatsApp webhook handlers in `src/webhooks/whatsapp.ts`:
<details>
<summary>View code</summary>
```typescript
import { Context } from "hono";
import { Agent } from "@voltagent/core";
import { WhatsAppWebhookBody } from "../types/whatsapp";
// Send message back to WhatsApp
async function sendWhatsAppMessage(
to: string,
message: string,
phoneNumberId: string,
accessToken: string
): Promise<boolean> {
try {
const response = await fetch(`https://graph.facebook.com/v18.0/${phoneNumberId}/messages`, {
method: "POST",
headers: {
Authorization: `Bearer ${accessToken}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
messaging_product: "whatsapp",
recipient_type: "individual",
to: to,
type: "text",
text: {
preview_url: false,
body: message,
},
}),
});
if (!response.ok) {
const error = await response.text();
console.error("WhatsApp API Error:", error);
return false;
}
return true;
} catch (error) {
console.error("Failed to send WhatsApp message:", error);
return false;
}
}
// Handle WhatsApp verification
export async function handleWhatsAppVerification(c: Context) {
const mode = c.req.query("hub.mode");
const token = c.req.query("hub.verify_token");
const challenge = c.req.query("hub.challenge");
const verifyToken = process.env.WHATSAPP_WEBHOOK_TOKEN;
if (mode && token) {
if (mode === "subscribe" && token === verifyToken) {
console.log("WhatsApp webhook verified successfully");
return c.text(challenge || "", 200);
} else {
return c.text("Forbidden", 403);
}
}
return c.text("Bad Request", 400);
}
// Handle incoming WhatsApp messages
export async function handleWhatsAppMessage(c: Context, agent: Agent) {