{
  "id": "type-p08",
  "revision": "24db7b4d8676f7bbebe3154d1c4ef707216a50730f707f769098aba8b4a39bed",
  "regions": [
    {
      "id": "common-logic",
      "label": "Common logic",
      "parent": null
    },
    {
      "id": "web",
      "label": "Web",
      "parent": null
    },
    {
      "id": "server",
      "label": "Server",
      "parent": null
    }
  ],
  "nodes": [
    {
      "id": "cart",
      "label": "Cart state authority",
      "kind": "N05",
      "region": "common-logic",
      "ports": [
        {
          "id": "state",
          "profile": "P08",
          "contract": "CartCountTotalStateV1",
          "polarity": "Offer"
        },
        {
          "id": "events",
          "profile": "P04",
          "contract": "CartChangedEventV1",
          "polarity": "Offer"
        },
        {
          "id": "edit",
          "profile": "P09",
          "contract": "CartMutationAtRevisionV1",
          "polarity": "Offer"
        }
      ]
    },
    {
      "id": "header",
      "label": "Cart badge",
      "kind": "N11",
      "region": "web",
      "ports": [
        {
          "id": "state",
          "profile": "P08",
          "contract": "CartCountTotalStateV1",
          "polarity": "Require"
        }
      ]
    },
    {
      "id": "checkout",
      "label": "Checkout Surface",
      "kind": "N11",
      "region": "web",
      "ports": [
        {
          "id": "state",
          "profile": "P08",
          "contract": "CartCountTotalStateV1",
          "polarity": "Require"
        },
        {
          "id": "edit",
          "profile": "P09",
          "contract": "CartMutationAtRevisionV1",
          "polarity": "Require"
        }
      ]
    },
    {
      "id": "analytics",
      "label": "Cart event recorder",
      "kind": "N02",
      "region": "server",
      "ports": [
        {
          "id": "events",
          "profile": "P04",
          "contract": "CartChangedEventV1",
          "polarity": "Require"
        }
      ]
    }
  ],
  "relations": [
    {
      "id": "state",
      "kind": "H07",
      "incidences": [
        {
          "node": "cart",
          "port": "state",
          "role": "publisher",
          "ordinal": 0
        },
        {
          "node": "header",
          "port": "state",
          "role": "subscriber",
          "ordinal": 0
        },
        {
          "node": "checkout",
          "port": "state",
          "role": "subscriber",
          "ordinal": 1
        }
      ]
    },
    {
      "id": "events",
      "kind": "H04",
      "incidences": [
        {
          "node": "cart",
          "port": "events",
          "role": "publisher",
          "ordinal": 0
        },
        {
          "node": "analytics",
          "port": "events",
          "role": "subscriber",
          "ordinal": 0
        }
      ]
    },
    {
      "id": "edit",
      "kind": "H05",
      "incidences": [
        {
          "node": "checkout",
          "port": "edit",
          "role": "caller",
          "ordinal": 0
        },
        {
          "node": "cart",
          "port": "edit",
          "role": "callee",
          "ordinal": 0
        }
      ]
    }
  ]
}