Repeat bootstrap attempts (#380)

* Repeatedly attempt to bootstrap watcher until it happens.

* Get rid of first request bootstrap, watcher polls now.

backend/app.py

@@ -1,14 +1,5 @@
 # -*- coding: utf-8 -*-
 """Create an application instance."""
 from grant.app import create_app
-from grant.blockchain.bootstrap import send_bootstrap_data
 
 app = create_app()
-
-
-@app.before_first_request
-def bootstrap_watcher():
-    try:
-        send_bootstrap_data()
-    except:
-        print('Failed to send bootstrap data, watcher must be offline')

blockchain/src/index.ts

@@ -16,7 +16,7 @@ async function start() {
   log.info("============== Starting services ==============");
   await initNode();
   await RestServer.start();
-  await Webhooks.start();
+  Webhooks.start();
   log.info("===============================================");
 }
 

blockchain/src/webhooks/index.ts

@@ -17,7 +17,13 @@ const MIN_BLOCK_CONF = parseInt(env.MINIMUM_BLOCK_CONFIRMATIONS, 10);
 export async function start() {
   initScan();
   initNotifiers();
-  await requestBootstrap();
+
+  let { startingBlockHeight } = store.getState();
+  while (!startingBlockHeight) {
+    await requestBootstrap();
+    await sleep(10000);
+    startingBlockHeight = store.getState().startingBlockHeight;
+  }
 }
 
 export function exit() {