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Embedding Apps

It is also possible to embed PocketBlocks Apps on any HTML Page with simple Scripts, using the PocketBlocks SDK through window.$pbl. This enables you to embed PocketBlocks Apps even without deep knowledge of React or Web Development.

How to

To do it, all installations of PocketBlocks bring an embedded.html file in pb_public folder with a code example.

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>PocketBlocks Embedded</title>
    <script type="module" crossorigin src="/js/proxy.js"></script>
    <style>
      .demo-title {
        text-align: center;
      }
      .demo {
        overflow: auto;
        padding: 10px;
      }
      .ops {
        padding: 10px;
      }
      .ops button {
        margin-right: 10px;
      }
    </style>
    <script type="module" crossorigin src="/js/embedded.js"></script>
    <link rel="modulepreload" crossorigin href="/js/<HASH>.js" />
    <link rel="stylesheet" href="/assets/index-<HASH>.css" />
  </head>
  <body>
    <h1 class="demo-title">PocketBlocks Embedded</h1>
    <div id="app" class="demo"></div>

    <script>
      window.onload = async function () {
        const url = new URL(location.href);
        const appId = url.searchParams.get("appId");
        const baseUrl = url.searchParams.get("baseUrl") || location.origin;
        if (!appId) {
          return;
        }
        const instance = await $pbl.bootstrapAppAt(
          appId,
          document.querySelector("#app"),
          {
            baseUrl,
            moduleInputs: { userName: "Lucy" },
          }
        );

        instance?.on("moduleOutputChange", (output) => {
          console.info("output change:", output);
        });

        instance?.on("moduleEventTriggered", (eventName) => {
          console.info("event triggered:", eventName);
        });

        document.querySelector("#app-ops")?.addEventListener("click", (e) => {
          const target = e.target;
          const key = target.dataset.key;
          if (key === "setModuleInputs") {
            instance?.setModuleInputs({
              userName: "Tom",
            });
          }
          if (key === "invokeMethod") {
            instance?.invokeMethod("setSlider");
          }
        });
      };
    </script>
  </body>
</html>

You can test it accessing your local installation at http://<host>/embedded.html?appId=<appSlug>

Only apps can be embedded in pages. Do not use navigations or modules.

Do not copy the code above. Always access your embedded.html to get the correct code as <HASH> changes with updates.

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