All API calls to the UniBee service require an API key included in the request header. You can find and configure the UniBee Base URL in the UniBee Admin Portal at Configuration->Integrations->UniBee Base URL. Use one of the following hosts as your $UniBee_API_Host: 
curl --location --request POST "$UniBee_API_Host/merchant/merchant_metric/merchant_metric_event" \
  --header "Authorization: Bearer $UNIBEE_API_KEY" \
  --header 'Content-Type: application/json' \
  --data-raw '{
    "metricCode": "folder_count_limit", // code needs to be configured in advance in the UniBee portal
    "externalUserId": "$YOUR_USER_ID",
    "externalEventId": "string", // string, __unique__, e.m. [folderId]
    "metricProperties": {}
  }'
You can go to UniBee Admin Portal (Configuration->Integrations->UniBee API Key) to create or regenerate the API key, the current key will still be valid within 1 hour after creating a new key. Go to our API docs for further detail.

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API object definitions

ResourceDefinition
Product APIA good or service that your business sells. A service product can include one or more features.
Plan APIDefines the unit price, currency, and billing cycle for a product.
User APIRepresents a customer who purchases a subscription. Use the Customer object associated with a subscription to make and track recurring charges and to manage the products that they subscribe to.
Invoice APIA statement of amounts a customer owes that tracks payment statuses from draft through paid or otherwise finalized. Subscriptions automatically generate invoices.
Payment APIA way to build dynamic payment flows. A PaymentIntent tracks the lifecycle of a customer checkout flow and triggers additional authentication steps when required by regulatory mandates, custom Radar fraud rules, or redirect-based payment methods. Invoices automatically create PaymentIntents.
Subscription APIRepresents a customer’s scheduled recurring purchase of a product. Use a subscription to collect payments and provide repeated delivery of or continuous access to a product.