chore: Refactoring event processors and service architecture (#2495)

server/api/hooks.test.js

@@ -1,11 +1,12 @@
 /* eslint-disable flowtype/require-valid-file-annotation */
 import TestServer from "fetch-test-server";
-import app from "../app";
 import { IntegrationAuthentication, SearchQuery } from "../models";
+import webService from "../services/web";
 import * as Slack from "../slack";
 import { buildDocument, buildIntegration } from "../test/factories";
 import { flushdb, seed } from "../test/support";
 
+const app = webService();
 const server = new TestServer(app.callback());
 
 beforeEach(() => flushdb());