Get CTWA conversions dataset
Returns the Meta Click-to-WhatsApp conversions dataset currently linked
to the WhatsApp account, if one has been provisioned. Reads only from
the stored metadata.metaCapiDatasetId — never hits Meta, never
creates a dataset. Use this to detect whether POST /v1/whatsapp/conversions
is configured for an account.
API key authentication - use your Zernio API key as a Bearer token
In: header
Query Parameters
WhatsApp social account ID
Response Body
application/json
application/json
import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.whatsapp.getWhatsAppDataset({ query: { accountId: 'account_abc123', },});console.log(data);{
"datasetId": "string"
}{
"error": "Unauthorized"
}Download WhatsApp media GET
Streams the binary for a WhatsApp attachment. This is the endpoint the `url` on a WhatsApp `attachments[]` entry points at, in both the `message.received` webhook and the List messages response. **This is an authenticated endpoint, not a public link.** Send `Authorization: Bearer <your API key>` exactly as you would for any other call. Passing the URL straight to a browser, an LLM vision API, or a no-code "download file" step without the header returns `401`. This is the most common integration mistake on this endpoint, and it differs from Instagram, Facebook and Telegram, whose `attachments[].url` is a direct CDN link that needs no header. **Fetch on receipt, not lazily.** WhatsApp media lives in Meta's media store, not ours, and it is removed after a limited retention window (currently 7 days, and Meta has been dropping some inbound media sooner). Once Meta drops it the media is unrecoverable and this endpoint answers `400` permanently, so retrying will never succeed. Download and store the bytes when the webhook arrives.
Provision CTWA dataset POST
Creates (or fetches, if one already exists) the Meta dataset that Click-to-WhatsApp ad events are reported against via the Conversions API, and persists its ID on the account as `metadata.metaCapiDatasetId`. The call is GET-first idempotent — a WABA can only own one CTWA dataset, so a second call after a successful provision is a safe no-op that returns the same ID with `created: false`. Requires the connected WhatsApp account's token to carry the `whatsapp_business_manage_events` permission. If the permission is missing the endpoint returns 422 with a message asking the user to reconnect the account.