refactor: adjust code after updated dependencies

Closes #39

src/app.ts

@@ -19,26 +19,33 @@ import {
   SCSyntaxErrorResponse,
   SCUnsupportedMediaTypeErrorResponse,
 } from '@openstapps/core';
+import {Logger} from '@openstapps/logger';
 import * as config from 'config';
 import * as cors from 'cors';
 import * as express from 'express';
 import * as morgan from 'morgan';
 import {join} from 'path';
-import {configFile, isTestEnvironment, logger, mailer, validator} from './common';
-import {MailQueue} from './notification/MailQueue';
-import {bulkAddRouter} from './routes/BulkAddRoute';
-import {bulkDoneRouter} from './routes/BulkDoneRoute';
-import {bulkRouter} from './routes/BulkRoute';
-import {indexRouter} from './routes/IndexRoute';
-import {multiSearchRouter} from './routes/MultiSearchRoute';
-import {searchRouter} from './routes/SearchRoute';
-import {thingUpdateRouter} from './routes/ThingUpdateRoute';
-import {BulkStorage} from './storage/BulkStorage';
-import {DatabaseConstructor} from './storage/Database';
-import {Elasticsearch} from './storage/elasticsearch/Elasticsearch';
+import {configFile, isTestEnvironment, mailer, validator} from './common';
+import {MailQueue} from './notification/mail-queue';
+import {bulkAddRouter} from './routes/bulk-add-route';
+import {bulkDoneRouter} from './routes/bulk-done-route';
+import {bulkRouter} from './routes/bulk-route';
+import {indexRouter} from './routes/index-route';
+import {multiSearchRouter} from './routes/multi-search-route';
+import {searchRouter} from './routes/search-route';
+import {thingUpdateRouter} from './routes/thing-update-route';
+import {BulkStorage} from './storage/bulk-storage';
+import {DatabaseConstructor} from './storage/database';
+import {Elasticsearch} from './storage/elasticsearch/elasticsearch';
 
+/**
+ * Created express application
+ */
 export const app = express();
 
+/**
+ * Configure the backend
+ */
 async function configureApp() {
   // request loggers have to be the first middleware to be set in express
   app.use(morgan('dev'));
@@ -62,10 +69,11 @@ async function configureApp() {
       const err = new SCUnsupportedMediaTypeErrorResponse(isTestEnvironment);
       res.status(err.statusCode);
       res.json(err);
+
       return;
     }
 
-    const bodyBuffer: any[] = [];
+    const bodyBuffer: Buffer[] = [];
     // we don't know the full size, the only way we can get is by adding up all individual chunk sizes
     let bodySize = 0;
     const chunkGatherer = (chunk: Buffer) => {
@@ -78,6 +86,7 @@ async function configureApp() {
         const err = new SCRequestBodyTooLargeErrorResponse(isTestEnvironment);
         res.status(err.statusCode);
         res.json(err);
+
         return;
       }
       // push the chunk in the buffer
@@ -85,7 +94,8 @@ async function configureApp() {
     };
 
     const endCallback = () => {
-      req.body = Buffer.concat(bodyBuffer).toString();
+      req.body = Buffer.concat(bodyBuffer)
+        .toString();
 
       try {
         req.body = JSON.parse(req.body);
@@ -94,13 +104,15 @@ async function configureApp() {
         const err = new SCSyntaxErrorResponse(catchErr.message, isTestEnvironment);
         res.status(err.statusCode);
         res.json(err);
+
         return;
       }
     };
-    req.on('data', chunkGatherer).on('end', endCallback);
+    req.on('data', chunkGatherer)
+      .on('end', endCallback);
   });
 
-  const databases: {[name: string]: DatabaseConstructor} = {
+  const databases: {[name: string]: DatabaseConstructor; } = {
     elasticsearch: Elasticsearch,
   };
 
@@ -113,8 +125,7 @@ async function configureApp() {
   // validation failed
   if (configValidation.errors.length > 0) {
     throw new Error(
-      'Validation of config file failed. Errors were: ' +
-      JSON.stringify(configValidation.errors),
+      `Validation of config file failed. Errors were: ${JSON.stringify(configValidation.errors)}`,
     );
   }
 
@@ -130,11 +141,13 @@ async function configureApp() {
       typeof mailer !== 'undefined' && config.has('internal.monitoring') ? new MailQueue(mailer) : undefined,
     );
 
+  await database.init();
+
   if (typeof database === 'undefined') {
     throw new Error('No implementation for configured database found. Please check your configuration.');
   }
 
-  logger.ok('Validated config file sucessfully');
+  Logger.ok('Validated config file sucessfully');
 
   // treats /foo and /foo/ as two different routes
   // see http://expressjs.com/en/api.html#app.set
@@ -194,8 +207,10 @@ async function configureApp() {
   // TODO: implement a route to register plugins
 }
 
-configureApp().then(() => {
-  logger.ok('Sucessfully configured express server');
-}).catch((err) => {
+configureApp()
+  .then(() => {
+    Logger.ok('Sucessfully configured express server');
+  })
+  .catch((err) => {
   throw err;
 });