Simple demo displaying address of a fixed spending key

zcash-client-sdk-js/src/index.js

@@ -1,5 +1,32 @@
-import * as wasm from 'zcash-client-backend-wasm'
+import { Client } from 'zcash-client-backend-wasm'
 
-export function greet () {
-  wasm.greet()
+const COIN = 100000000
+
+export class ZcashClient {
+  constructor (uiHandlers) {
+    this.client = Client.new()
+    this.uiHandlers = uiHandlers
+  }
+
+  updateUI () {
+    this.uiHandlers.updateBalance(this.client.balance() / COIN)
+  }
+
+  load (onFinished) {
+    var self = this
+
+    var loader = () => {
+      // Register event handlers
+
+      // Initial UI updates
+      self.uiHandlers.setAddress(self.client.address())
+      self.updateUI()
+
+      // Finished loading!
+      onFinished()
+    }
+
+    // document.addEventListener('DOMContentLoaded', loader, false)
+    loader()
+  }
 }