refactor sending jobs to worker server

website/server/libs/worker.js

@@ -0,0 +1,38 @@
+import got from 'got';
+import nconf from 'nconf';
+import logger from './logger';
+
+const IS_PROD = nconf.get('IS_PROD');
+const EMAIL_SERVER = {
+  url: nconf.get('EMAIL_SERVER_URL'),
+  auth: {
+    user: nconf.get('EMAIL_SERVER_AUTH_USER'),
+    password: nconf.get('EMAIL_SERVER_AUTH_PASSWORD'),
+  },
+};
+
+export function sendJob (type, config) {
+  if (IS_PROD) {
+    const { data, options } = config;
+    const usedOptions = {
+      priority: 'high',
+      backoff: { delay: 10 * 60 * 1000, type: 'exponential' },
+      ...options,
+    };
+
+    return got.post(`${EMAIL_SERVER.url}/job`, {
+      retry: 5, // retry the http request to the email server 5 times
+      timeout: 60000, // wait up to 60s before timing out
+      username: EMAIL_SERVER.auth.user,
+      password: EMAIL_SERVER.auth.password,
+      json: {
+        type,
+        data,
+        options: usedOptions,
+      },
+    }).json().catch(err => logger.error(err, {
+      extraMessage: 'Error while sending an email.',
+    }));
+  }
+  return null;
+}