# Templates with an image, a document and buttons

`POST /v1/messages`

**Send a rich template without building Meta's `components`.** On `POST /v1/messages` with `type: "template"`, instead of `components` you can send three fields and Connect builds the rest, exactly:

- **`header`** — `{ "type": "document", "link": "https://…/A-1042.pdf", "filename": "Invoice A-1042.pdf" }`. Also `image` and `video` (with `mediaId` or `link`), `text` (`{ "type": "text", "text": "…" }`) and `location` (`latitude`, `longitude`, `name`, `address`). `filename` is for documents only: it's the name the contact sees.
- **`body`** — a list for `{{1}}`, `{{2}}`… (`["María", "A-1042"]`) or, if the template uses named variables, an object (`{ "name": "María" }`).
- **`buttons`** — the buttons that take a value: `url` → `text` (the end of the dynamic URL), `copy_code` → `code`, `quick_reply` → `payload` (it comes back in the `message.received` when the contact taps it). We infer the position (`index`) from the approved template; if we haven't synced it yet, send it yourself (from 0).

**Every mistake comes back at once, before Meta.** If we know the template, we check how many variables it has, their names, its buttons and the header type: `400 TEMPLATE_SEND_INVALID` with `details.errors[]`, each with its `field` (the path in your JSON) and the message in your language. Nothing is sent to Meta.

**The journey:** create the template (with a file or buttons: `POST /v1/templates`, see “Create templates with an image, document and buttons”) → `POST /v1/templates/sync` → wait for the **`template.status_changed`** webhook with `APPROVED` → send it as above → follow it with `GET /v1/messages/{id}` or the `message.sent` / `delivered` / `read` / `failed` webhooks.

## Examples

### cURL

```bash
curl -X POST https://api.waiaconnect.com/v1/messages \
  -H "Authorization: Bearer wc_live_YOUR_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"connectionId":"conn_XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX","to":"5493511234567","type":"template","template":{"name":"envio_factura","language":"es","header":{"type":"document","link":"https://your-server.example/invoices/A-1042.pdf","filename":"Factura A-1042.pdf"},"body":["María","A-1042"],"buttons":[{"type":"url","text":"A-1042"}]}}'
# header: image | video | document (mediaId OR link; filename = documents only) | text | location
# body:   ["v1","v2"] for {{1}},{{2}}  —  or {"name":"v1"} for named {{variables}}
# buttons: url → text (the URL suffix) · copy_code → code · quick_reply → payload
# Every mistake comes back at once: 400 TEMPLATE_SEND_INVALID, details.errors[].field
```

### Node.js

```javascript
// header/body/buttons → Connect builds Meta's components (don't send "components" too).
const res = await fetch("https://api.waiaconnect.com/v1/messages", {
  method: "POST",
  headers: {
    "Authorization": "Bearer wc_live_YOUR_API_KEY",
    "Idempotency-Key": crypto.randomUUID(),
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
  "connectionId": "conn_XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
  "to": "5493511234567",
  "type": "template",
  "template": {
    "name": "envio_factura",
    "language": "es",
    "header": {
      "type": "document",
      "link": "https://your-server.example/invoices/A-1042.pdf",
      "filename": "Factura A-1042.pdf"
    },
    "body": [
      "María",
      "A-1042"
    ],
    "buttons": [
      {
        "type": "url",
        "text": "A-1042"
      }
    ]
  }
})
});
console.log(await res.json()); // { id: "msg_…", status: "queued" }
```

### PHP

```php
<?php
// header/body/buttons → Connect builds Meta's components (don't send "components" too).
$ch = curl_init("https://api.waiaconnect.com/v1/messages");
curl_setopt_array($ch, [
  CURLOPT_POST => true,
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer wc_live_YOUR_API_KEY",
    "Idempotency-Key: " . bin2hex(random_bytes(16)),
    "Content-Type: application/json",
  ],
  CURLOPT_POSTFIELDS => json_encode(["connectionId" => "conn_XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX","to" => "5493511234567","type" => "template","template" => ["name" => "envio_factura","language" => "es","header" => ["type" => "document","link" => "https://your-server.example/invoices/A-1042.pdf","filename" => "Factura A-1042.pdf"],"body" => ["María","A-1042"],"buttons" => [["type" => "url","text" => "A-1042"]]]]),
]);
echo curl_exec($ch);
```

### Python

```python
import requests, uuid
# header/body/buttons -> Connect builds Meta's components (don't send "components" too).
res = requests.post("https://api.waiaconnect.com/v1/messages",
  headers={
    "Authorization": "Bearer wc_live_YOUR_API_KEY",
    "Idempotency-Key": str(uuid.uuid4()),
  },
  json={"connectionId":"conn_XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX","to":"5493511234567","type":"template","template":{"name":"envio_factura","language":"es","header":{"type":"document","link":"https://your-server.example/invoices/A-1042.pdf","filename":"Factura A-1042.pdf"},"body":["María","A-1042"],"buttons":[{"type":"url","text":"A-1042"}]}})
print(res.json())
```

## Notes

- `components` keeps working as before. Send one or the other, not both.
- **Standalone media** (within 24 h): `type` `image`, `document`, `video`, `audio` or **`sticker`** (WEBP, no caption), with `link` or `id` (also `mediaId`).
- If Meta pauses or disables the template for its quality, the message fails with `TEMPLATE_PAUSED` or `TEMPLATE_DISABLED` and is not retried.
- The link must be **https** and point straight at the file (a Drive "share" link won't work). Meta's limits: document 100 MB, image 5 MB, video 16 MB.