Digital ordering

This use case is aimed at Digital Ordering Systems and it describes how to use the Mews POS API to manage digital orders, including:

• Browsing the product catalog

• Creating and managing orders

• Processing payments

Contents

• Products endpoint polling to get availability updates

• Orders endpoint polling to get most recent order status changes

Products endpoint polling to get availability updates

Digital ordering systems need to stay synchronized with real-time product availability changes. Use the Get products endpoint with filtering and sparse fieldsets to efficiently poll for availability updates.

Polling strategy

Poll the products endpoint using the updatedAtGteq or updatedAtGt filters to retrieve only products that have been updated since your last check. Use sparse fieldsets to minimize bandwidth by requesting only the isAvailable field.

Example request:

GET https://api.pos.mews-demo.com/v1/products?filter[updatedAtGteq]=2025-03-12&fields[products]=isAvailable

Example response:

{
  "data": [
    {
      "id": "139a7f7a-591f-4797-ba23-08c9bee0d044",
      "type": "products",
      "attributes": {
        "isAvailable": false
      }
    },
    {
      "id": "2a8b9c1d-4e5f-6789-abcd-ef1234567890",
      "type": "products",
      "attributes": {
        "isAvailable": true
      }
    }
  ]
}

Orders endpoint polling to get most recent order status changes

Track order status changes in real-time by polling the Get orders endpoint with filtering and sparse fieldsets to monitor order lifecycle updates.

Polling strategy

Poll the orders endpoint using the updatedAtGteq or updatedAtGt filters to retrieve only orders that have been updated since your last check. Use sparse fieldsets to request only the status field for efficient bandwidth usage.

Example request:

GET https://api.pos.mews-demo.com/v1/orders?filter[updatedAtGteq]=2025-05-16&fields[orders]=status

Example response:

{
  "data": [
    {
      "id": "5624013b-5293-48b1-a07a-e7ee01cbde6a",
      "type": "orders",
      "attributes": {
        "status": "closed"
      }
    },
    {
      "id": "7c8d9e0f-1234-5678-9abc-def012345678",
      "type": "orders",
      "attributes": {
        "status": "open"
      }
    }
  ]
}