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checked> Show all</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-0"> Shopper</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-1"> Shop app</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-2"> API gateway</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-3"> Catalog service</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-4"> Order service</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-5"> Order events</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-6"> Billing worker</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-7"> Catalog</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-8"> Orders</label><label><input type="radio" name="chartlet-c5bbc166624832ea-focus" class="chartlet-focus-node" id="chartlet-c5bbc166624832ea-focus-9"> Invoices</label></fieldset></details><figure class="chartlet-figure" data-viz="chart"><figcaption>Order platform and its data stores</figcaption><div class="chartlet-variant-desktop"><div class="chartlet-stage"><svg xmlns="http://www.w3.org/2000/svg" width="1520" height="560" viewBox="0 0 1520 560" id="chartlet-c5bbc166624832ea" role="img" aria-labelledby="chartlet-c5bbc166624832ea-title chartlet-c5bbc166624832ea-description" class="chartlet-root"><title id="chartlet-c5bbc166624832ea-title">Order platform and its data stores</title><desc id="chartlet-c5bbc166624832ea-description">Architecture diagram with 10 components and 9 connections in 2 boundaries. Order platform: API gateway, Catalog service, Order service, Order events, Billing worker, Data tier. Data tier (in Order platform): Catalog, Orders, Invoices. Main path: Shopper → Shop app → API gateway → Order service → Order events → Billing worker. Most connected: API gateway and Order service (3 connections each). Nothing leads into Shopper. Nothing leads out of Catalog, Orders and Invoices. Shopper (person): connects to Shop app (orders). Shop app (frontend): connects to API gateway (via HTTPS). API gateway (service): connects to Catalog service (browse) and Order service (checkout). Catalog service (service): connects to Catalog (via SQL). Order service (service): connects to Orders (via SQL) and Order events (publishes). Order events (queue): connects to Billing worker (delivers). Billing worker (service): connects to Invoices (via SQL). Catalog (database): no outgoing connection. Invoices (database): no outgoing connection. 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Order platform: API gateway, Catalog service, Order service, Order events, Billing worker, Data tier. Data tier (in Order platform): Catalog, Orders, Invoices. Main path: Shopper → Shop app → API gateway → Order service → Order events → Billing worker. Most connected: API gateway and Order service (3 connections each). Nothing leads into Shopper. Nothing leads out of Catalog, Orders and Invoices. Shopper (person): connects to Shop app (orders). Shop app (frontend): connects to API gateway (via HTTPS). API gateway (service): connects to Catalog service (browse) and Order service (checkout). Catalog service (service): connects to Catalog (via SQL). Order service (service): connects to Orders (via SQL) and Order events (publishes). Order events (queue): connects to Billing worker (delivers). Billing worker (service): connects to Invoices (via SQL). Catalog (database): no outgoing connection. Invoices (database): no outgoing connection. 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class="chartlet-hotspot" id="chartlet-c5bbc166624832ea-m-hs-7" for="chartlet-c5bbc166624832ea-focus-7"></label><label class="chartlet-hotspot" id="chartlet-c5bbc166624832ea-m-hs-8" for="chartlet-c5bbc166624832ea-focus-8"></label><label class="chartlet-hotspot" id="chartlet-c5bbc166624832ea-m-hs-9" for="chartlet-c5bbc166624832ea-focus-9"></label></div></div><p class="chartlet-source">Source: Illustrative reference architecture</p><details class="chartlet-data" data-viz-text><summary>Show chart data</summary><table><caption>Data for Order platform and its data stores</caption><thead><tr><th scope="col">Component</th><th scope="col">Kind</th><th scope="col">Boundary</th><th scope="col">Connects to</th></tr></thead><tbody><tr><th scope="row">Shopper</th><td>person</td><td></td><td>Shop app (orders)</td></tr><tr><th scope="row">Shop app</th><td>frontend</td><td></td><td>API gateway (via HTTPS)</td></tr><tr><th scope="row">API gateway</th><td>service</td><td>Order platform</td><td>Catalog service (browse), Order service (checkout)</td></tr><tr><th scope="row">Catalog service</th><td>service</td><td>Order platform</td><td>Catalog (via SQL)</td></tr><tr><th scope="row">Order service</th><td>service</td><td>Order platform</td><td>Orders (via SQL), Order events (publishes)</td></tr><tr><th scope="row">Order events</th><td>queue</td><td>Order platform</td><td>Billing worker (delivers)</td></tr><tr><th scope="row">Billing worker</th><td>service</td><td>Order platform</td><td>Invoices (via SQL)</td></tr><tr><th scope="row">Catalog</th><td>database</td><td>Order platform › Data tier</td><td></td></tr><tr><th scope="row">Invoices</th><td>database</td><td>Order platform › Data tier</td><td></td></tr><tr><th scope="row">Orders</th><td>database</td><td>Order platform › Data tier</td><td></td></tr></tbody></table></details></figure></div>