Claim prepared surveys for a mobile backend

Requires retention:view, retention:edit and retention:activate. Mobile API must be enabled. Claims up to20 current programme invitations after current programme, withdrawal, actor and subsequent-purchase checks. Each invitation is handed off once. Deliver before claimExpiresAt and report an actual result; do not send an expired claim. The merchant must verify its native notification consent and use its own APNs/FCM provider. Store capability and receipt tokens securely; never put an sk_ key in the mobile app. Limit120 requests/minute shared perproject. Only survey invitations are returned. Use /v1/retention/messages/claim to handle other retention messages.

curl -X POST "https://bitelio-api.heltia.com/v1/retention/survey-deliveries/claim" \  -H "Content-Type: application/json" \  -d '{}'

{
  "items": [
    {
      "deliveryId": "string",
      "receiptToken": "string",
      "surveyUrl": "string",
      "surveyToken": "string",
      "contactId": "string",
      "locale": "string",
      "title": "string",
      "body": "string",
      "expiresAt": "2019-08-24T14:15:22Z",
      "claimExpiresAt": "2019-08-24T14:15:22Z"
    }
  ]
}