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

server/sentry.js

@@ -0,0 +1,21 @@
+// @flow
+import * as Sentry from "@sentry/node";
+import env from "./env";
+
+if (env.SENTRY_DSN) {
+  Sentry.init({
+    dsn: env.SENTRY_DSN,
+    environment: env.ENVIRONMENT,
+    release: env.RELEASE,
+    maxBreadcrumbs: 0,
+    ignoreErrors: [
+      // emitted by Koa when bots attempt to snoop on paths such as wp-admin
+      // or the user client submits a bad request. These are expected in normal
+      // running of the application and don't need to be reported.
+      "BadRequestError",
+      "UnauthorizedError",
+    ],
+  });
+}
+
+export default Sentry;