chore: Begin converting files from JS to TypeScript

src/lib/app.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 const express = require('express');
 
 const compression = require('compression');
@@ -9,7 +7,7 @@ const path = require('path');
 const errorHandler = require('errorhandler');
 const IndexRouter = require('./routes');
 const unleashDbSession = require('./middleware/session-db');
-const responseTime = require('./middleware/response-time');
+import { responseTimeMetrics } from './middleware/response-time-metrics';
 const requestLogger = require('./middleware/request-logger');
 const simpleAuthentication = require('./middleware/simple-authentication');
 const noAuthentication = require('./middleware/no-authentication');
@@ -33,7 +31,7 @@ module.exports = function(config, services = {}) {
     app.use(cookieParser());
     app.use(express.json({ strict: false }));
     app.use(unleashDbSession(config));
-    app.use(responseTime(config));
+    app.use(responseTimeMetrics(config));
     app.use(requestLogger(config));
     app.use(secureHeaders(config));
     app.use(express.urlencoded({ extended: true }));

src/lib/error/db-error.js

@@ -1,3 +0,0 @@
-module.exports = {
-    UNIQUE_CONSTRAINT_VIOLATION: '23505',
-};

src/lib/error/db-error.ts

@@ -0,0 +1,3 @@
+const UNIQUE_CONSTRAINT_VIOLATION = '23505';
+
+export {UNIQUE_CONSTRAINT_VIOLATION};

src/lib/error/feature-has-tag-errort.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 class FeatureHasTagError extends Error {
     constructor(message) {
         super();
@@ -23,4 +21,4 @@ class FeatureHasTagError extends Error {
     }
 }
 
-module.exports = FeatureHasTagError;
+export {FeatureHasTagError};

src/lib/events.js

@@ -1,6 +0,0 @@
-'use strict';
-
-module.exports = {
-    REQUEST_TIME: 'request_time',
-    DB_TIME: 'db_time',
-};

src/lib/events.ts

@@ -0,0 +1,4 @@
+const REQUEST_TIME = 'request_time';
+const DB_TIME =  'db_time';
+
+export {REQUEST_TIME, DB_TIME};

src/lib/metrics.ts

@@ -1,19 +1,19 @@
-'use strict';
-
-const client = require('prom-client');
-const events = require('./events');
-const {
+import client from 'prom-client';
+import * as events from './events';
+import {
     FEATURE_CREATED,
     FEATURE_UPDATED,
     FEATURE_ARCHIVED,
     FEATURE_REVIVED,
     DB_POOL_UPDATE,
-} = require('./event-type');
+} from'./event-type';
 
 const THREE_HOURS = 3 * 60 * 60 * 1000;
 const ONE_MINUTE = 60 * 1000;
 
 class MetricsMonitor {
+    timer: any;
+
     constructor() {
         this.timer = null;
     }
@@ -98,16 +98,15 @@ class MetricsMonitor {
         });
 
         clientMetricsStore.on('metrics', m => {
-            // eslint-disable-next-line no-restricted-syntax
-            for (const [feature, { yes, no }] of Object.entries(
+            for (const entry of Object.entries(
                 m.bucket.toggles,
             )) {
                 featureToggleUsageTotal
-                    .labels(feature, true, m.appName)
-                    .inc(yes);
+                    .labels(entry[0], 'true', m.appName)
+                    .inc(entry[1]['yes']);
                 featureToggleUsageTotal
-                    .labels(feature, false, m.appName)
-                    .inc(no);
+                    .labels(entry[0], 'false', m.appName)
+                    .inc(entry[1]['no']);
             }
         });
 

src/lib/middleware/response-time-metrics.ts

@@ -1,10 +1,10 @@
-'use strict';
+import  * as responseTime from 'response-time';
+import { REQUEST_TIME } from '../events';
 
-const responseTime = require('response-time');
-const { REQUEST_TIME } = require('../events');
+var _responseTime = responseTime.default
 
-module.exports = function(config) {
-    return responseTime((req, res, time) => {
+export function responseTimeMetrics(config) {
+    return _responseTime((req, res, time) => {
         const { statusCode } = res;
 
         const pathname = req.route ? req.baseUrl + req.route.path : '(hidden)';

src/lib/routes/backstage.ts

@@ -1,9 +1,9 @@
-'use strict';
-
-const { register: prometheusRegister } = require('prom-client');
-const Controller = require('./controller');
+import { register as prometheusRegister } from 'prom-client';
+import Controller from './controller';
 
 class BackstageController extends Controller {
+    logger: any;
+
     constructor(config) {
         super();
 
@@ -18,4 +18,4 @@ class BackstageController extends Controller {
     }
 }
 
-module.exports = BackstageController;
+export { BackstageController };

src/lib/routes/index.ts

@@ -6,7 +6,7 @@ const FeatureController = require('./client-api/feature.js');
 
 const Controller = require('./controller');
 const HealthCheckController = require('./health-check');
-const BackstageCTR = require('./backstage.js');
+import { BackstageController } from './backstage';
 const LogoutController = require('./logout');
 const api = require('./api-def');
 
@@ -14,7 +14,7 @@ class IndexRouter extends Controller {
     constructor(config, services) {
         super();
         this.use('/health', new HealthCheckController(config).router);
-        this.use('/internal-backstage', new BackstageCTR(config).router);
+        this.use('/internal-backstage', new BackstageController(config).router);
         this.use('/logout', new LogoutController(config).router);
         this.get(api.uri, this.index);
         this.use(api.links.admin.uri, new AdminApi(config, services).router);