Centralize route generation to a single place

platform/viewer/src/hooks/useAppConfig.js

@@ -0,0 +1,17 @@
+import { useCallback, useState } from 'react';
+
+/**
+ * Implements the state/methods defined in `appConfig.context`.
+ */
+export const useAppConfig = initialValue => {
+  const [config, setConfig] = useState(initialValue || {});
+
+  const setCurrentConfig = useCallback(updatedConfig => {
+    setConfig(updatedConfig);
+  }, []);
+
+  return {
+    config,
+    setCurrentConfig,
+  };
+};