From 85141812d9808b39cdb09e7a917423368cb76b05 Mon Sep 17 00:00:00 2001
From: Faruk AYDIN <omerfaruk26@gmail.com>
Date: Thu, 4 Jan 2024 19:55:41 +0100
Subject: [PATCH] feat: Convert helpers to use JS files

---
 ...n-steps.ts => add-authentication-steps.js} | 28 +++---
 ...ion-steps.ts => add-reconnection-steps.js} | 22 +++--
 ...ssets-handler.ts => app-assets-handler.js} |  4 +-
 ...nfo-converter.ts => app-info-converter.js} |  3 +-
 .../{authentication.ts => authentication.js}  |  5 +-
 ...xios-with-proxy.ts => axios-with-proxy.js} |  4 +-
 .../billing/{index.ee.ts => index.ee.js}      |  0
 .../billing/{paddle.ee.ts => paddle.ee.js}    |  4 +-
 .../billing/{plans.ee.ts => plans.ee.js}      |  2 +-
 .../{webhooks.ee.ts => webhooks.ee.js}        | 13 ++-
 ...readiness.ts => check-worker-readiness.js} |  0
 ...ompile-email.ee.ts => compile-email.ee.js} |  2 +-
 ...te-parameters.ts => compute-parameters.js} | 13 +--
 ...-id.ts => create-auth-token-by-user-id.js} |  2 +-
 ...andler.ts => create-bull-board-handler.js} |  2 +-
 packages/backend/src/helpers/define-action.js |  3 +
 packages/backend/src/helpers/define-action.ts |  5 --
 packages/backend/src/helpers/define-app.js    |  3 +
 packages/backend/src/helpers/define-app.ts    |  5 --
 .../backend/src/helpers/define-trigger.js     |  3 +
 .../backend/src/helpers/define-trigger.ts     |  7 --
 .../src/helpers/delay-as-milliseconds.js      | 19 ++++
 .../src/helpers/delay-as-milliseconds.ts      | 25 ------
 ...econds.ts => delay-for-as-milliseconds.js} |  7 +-
 ...onds.ts => delay-until-as-milliseconds.js} |  2 +-
 ...ind-or-create-user-by-saml-identity.ee.js} | 17 ++--
 .../src/helpers/{get-app.ts => get-app.js}    | 36 +++-----
 ...{global-variable.ts => global-variable.js} | 36 ++------
 ...raphql-instance.ts => graphql-instance.js} | 14 +--
 .../http-client/{index.ts => index.js}        | 42 ++++-----
 ...andler.ts => inject-bull-board-handler.js} |  7 +-
 .../helpers/{license.ee.ts => license.ee.js}  |  0
 .../src/helpers/{logger.ts => logger.js}      |  0
 .../helpers/{mailer.ee.ts => mailer.ee.js}    |  0
 .../src/helpers/{morgan.ts => morgan.js}      |  7 +-
 .../helpers/{pagination.ts => pagination.js}  | 12 +--
 ...se-header-link.ts => parse-header-link.js} | 32 ++-----
 packages/backend/src/helpers/passport.js      | 89 +++++++++++++++++++
 packages/backend/src/helpers/passport.ts      | 84 -----------------
 ...catalog.ee.ts => permission-catalog.ee.js} |  0
 ...uration.ts => remove-job-configuration.js} |  0
 .../helpers/{sentry.ee.ts => sentry.ee.js}    | 27 +++---
 .../helpers/telemetry/{index.ts => index.js}  | 32 +++----
 .../{instance-id.ts => instance-id.js}        |  0
 ...{organization-id.ts => organization-id.js} |  0
 .../{user-ability.ts => user-ability.js}      | 13 +--
 .../{web-ui-handler.ts => web-ui-handler.js}  |  4 +-
 ...{webhook-handler.ts => webhook-handler.js} |  8 +-
 48 files changed, 259 insertions(+), 384 deletions(-)
 rename packages/backend/src/helpers/{add-authentication-steps.ts => add-authentication-steps.js} (84%)
 rename packages/backend/src/helpers/{add-reconnection-steps.ts => add-reconnection-steps.js} (77%)
 rename packages/backend/src/helpers/{app-assets-handler.ts => app-assets-handler.js} (84%)
 rename packages/backend/src/helpers/{app-info-converter.ts => app-info-converter.js} (84%)
 rename packages/backend/src/helpers/{authentication.ts => authentication.js} (97%)
 rename packages/backend/src/helpers/{axios-with-proxy.ts => axios-with-proxy.js} (86%)
 rename packages/backend/src/helpers/billing/{index.ee.ts => index.ee.js} (100%)
 rename packages/backend/src/helpers/billing/{paddle.ee.ts => paddle.ee.js} (91%)
 rename packages/backend/src/helpers/billing/{plans.ee.ts => plans.ee.js} (91%)
 rename packages/backend/src/helpers/billing/{webhooks.ee.ts => webhooks.ee.js} (82%)
 rename packages/backend/src/helpers/{check-worker-readiness.ts => check-worker-readiness.js} (100%)
 rename packages/backend/src/helpers/{compile-email.ee.ts => compile-email.ee.js} (81%)
 rename packages/backend/src/helpers/{compute-parameters.ts => compute-parameters.js} (77%)
 rename packages/backend/src/helpers/{create-auth-token-by-user-id.ts => create-auth-token-by-user-id.js} (83%)
 rename packages/backend/src/helpers/{create-bull-board-handler.ts => create-bull-board-handler.js} (94%)
 create mode 100644 packages/backend/src/helpers/define-action.js
 delete mode 100644 packages/backend/src/helpers/define-action.ts
 create mode 100644 packages/backend/src/helpers/define-app.js
 delete mode 100644 packages/backend/src/helpers/define-app.ts
 create mode 100644 packages/backend/src/helpers/define-trigger.js
 delete mode 100644 packages/backend/src/helpers/define-trigger.ts
 create mode 100644 packages/backend/src/helpers/delay-as-milliseconds.js
 delete mode 100644 packages/backend/src/helpers/delay-as-milliseconds.ts
 rename packages/backend/src/helpers/{delay-for-as-milliseconds.ts => delay-for-as-milliseconds.js} (69%)
 rename packages/backend/src/helpers/{delay-until-as-milliseconds.ts => delay-until-as-milliseconds.js} (74%)
 rename packages/backend/src/helpers/{find-or-create-user-by-saml-identity.ee.ts => find-or-create-user-by-saml-identity.ee.js} (74%)
 rename packages/backend/src/helpers/{get-app.ts => get-app.js} (65%)
 rename packages/backend/src/helpers/{global-variable.ts => global-variable.js} (78%)
 rename packages/backend/src/helpers/{graphql-instance.ts => graphql-instance.js} (82%)
 rename packages/backend/src/helpers/http-client/{index.ts => index.js} (55%)
 rename packages/backend/src/helpers/{inject-bull-board-handler.ts => inject-bull-board-handler.js} (75%)
 rename packages/backend/src/helpers/{license.ee.ts => license.ee.js} (100%)
 rename packages/backend/src/helpers/{logger.ts => logger.js} (100%)
 rename packages/backend/src/helpers/{mailer.ee.ts => mailer.ee.js} (100%)
 rename packages/backend/src/helpers/{morgan.ts => morgan.js} (72%)
 rename packages/backend/src/helpers/{pagination.ts => pagination.js} (59%)
 rename packages/backend/src/helpers/{parse-header-link.ts => parse-header-link.js} (51%)
 create mode 100644 packages/backend/src/helpers/passport.js
 delete mode 100644 packages/backend/src/helpers/passport.ts
 rename packages/backend/src/helpers/{permission-catalog.ee.ts => permission-catalog.ee.js} (100%)
 rename packages/backend/src/helpers/{remove-job-configuration.ts => remove-job-configuration.js} (100%)
 rename packages/backend/src/helpers/{sentry.ee.ts => sentry.ee.js} (60%)
 rename packages/backend/src/helpers/telemetry/{index.ts => index.js} (80%)
 rename packages/backend/src/helpers/telemetry/{instance-id.ts => instance-id.js} (100%)
 rename packages/backend/src/helpers/telemetry/{organization-id.ts => organization-id.js} (100%)
 rename packages/backend/src/helpers/{user-ability.ts => user-ability.js} (54%)
 rename packages/backend/src/helpers/{web-ui-handler.ts => web-ui-handler.js} (85%)
 rename packages/backend/src/helpers/{webhook-handler.ts => webhook-handler.js} (92%)

diff --git a/packages/backend/src/helpers/add-authentication-steps.ts b/packages/backend/src/helpers/add-authentication-steps.js
similarity index 84%
rename from packages/backend/src/helpers/add-authentication-steps.ts
rename to packages/backend/src/helpers/add-authentication-steps.js
index 0728ec8c..631e6055 100644
--- a/packages/backend/src/helpers/add-authentication-steps.ts
+++ b/packages/backend/src/helpers/add-authentication-steps.js
@@ -1,6 +1,4 @@
-import { IApp } from '@automatisch/types';
-
-function addAuthenticationSteps(app: IApp): IApp {
+function addAuthenticationSteps(app) {
   if (app.auth.generateAuthUrl) {
     app.auth.authenticationSteps = authenticationStepsWithAuthUrl;
     app.auth.sharedAuthenticationSteps = sharedAuthenticationStepsWithAuthUrl;
@@ -13,7 +11,7 @@ function addAuthenticationSteps(app: IApp): IApp {
 
 const authenticationStepsWithoutAuthUrl = [
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'createConnection',
     arguments: [
       {
@@ -27,7 +25,7 @@ const authenticationStepsWithoutAuthUrl = [
     ],
   },
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'verifyConnection',
     arguments: [
       {
@@ -40,7 +38,7 @@ const authenticationStepsWithoutAuthUrl = [
 
 const authenticationStepsWithAuthUrl = [
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'createConnection',
     arguments: [
       {
@@ -54,7 +52,7 @@ const authenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'generateAuthUrl',
     arguments: [
       {
@@ -64,7 +62,7 @@ const authenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'openWithPopup' as const,
+    type: 'openWithPopup',
     name: 'openAuthPopup',
     arguments: [
       {
@@ -74,7 +72,7 @@ const authenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'updateConnection',
     arguments: [
       {
@@ -88,7 +86,7 @@ const authenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'verifyConnection',
     arguments: [
       {
@@ -101,7 +99,7 @@ const authenticationStepsWithAuthUrl = [
 
 const sharedAuthenticationStepsWithAuthUrl = [
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'createConnection',
     arguments: [
       {
@@ -115,7 +113,7 @@ const sharedAuthenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'generateAuthUrl',
     arguments: [
       {
@@ -125,7 +123,7 @@ const sharedAuthenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'openWithPopup' as const,
+    type: 'openWithPopup',
     name: 'openAuthPopup',
     arguments: [
       {
@@ -135,7 +133,7 @@ const sharedAuthenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'updateConnection',
     arguments: [
       {
@@ -149,7 +147,7 @@ const sharedAuthenticationStepsWithAuthUrl = [
     ],
   },
   {
-    type: 'mutation' as const,
+    type: 'mutation',
     name: 'verifyConnection',
     arguments: [
       {
diff --git a/packages/backend/src/helpers/add-reconnection-steps.ts b/packages/backend/src/helpers/add-reconnection-steps.js
similarity index 77%
rename from packages/backend/src/helpers/add-reconnection-steps.ts
rename to packages/backend/src/helpers/add-reconnection-steps.js
index 38ec9e49..95e89d19 100644
--- a/packages/backend/src/helpers/add-reconnection-steps.ts
+++ b/packages/backend/src/helpers/add-reconnection-steps.js
@@ -1,8 +1,3 @@
-import {
-  IApp,
-  IAuthenticationStep,
-  IAuthenticationStepField,
-} from '@automatisch/types';
 import cloneDeep from 'lodash/cloneDeep';
 
 const connectionIdArgument = {
@@ -11,20 +6,20 @@ const connectionIdArgument = {
 };
 
 const resetConnectionStep = {
-  type: 'mutation' as const,
+  type: 'mutation',
   name: 'resetConnection',
   arguments: [connectionIdArgument],
 };
 
-function replaceCreateConnection(string: string) {
+function replaceCreateConnection(string) {
   return string.replace('{createConnection.id}', '{connection.id}');
 }
 
-function removeAppKeyArgument(args: IAuthenticationStepField[]) {
+function removeAppKeyArgument(args) {
   return args.filter((argument) => argument.name !== 'key');
 }
 
-function addConnectionId(step: IAuthenticationStep) {
+function addConnectionId(step) {
   step.arguments = step.arguments.map((argument) => {
     if (typeof argument.value === 'string') {
       argument.value = replaceCreateConnection(argument.value);
@@ -45,7 +40,7 @@ function addConnectionId(step: IAuthenticationStep) {
   return step;
 }
 
-function replaceCreateConnectionsWithUpdate(steps: IAuthenticationStep[]) {
+function replaceCreateConnectionsWithUpdate(steps) {
   const updatedSteps = cloneDeep(steps);
   return updatedSteps.map((step) => {
     const updatedStep = addConnectionId(step);
@@ -62,7 +57,7 @@ function replaceCreateConnectionsWithUpdate(steps: IAuthenticationStep[]) {
   });
 }
 
-function addReconnectionSteps(app: IApp): IApp {
+function addReconnectionSteps(app) {
   const hasReconnectionSteps = app.auth.reconnectionSteps;
 
   if (hasReconnectionSteps) return app;
@@ -80,7 +75,10 @@ function addReconnectionSteps(app: IApp): IApp {
       app.auth.sharedAuthenticationSteps
     );
 
-    app.auth.sharedReconnectionSteps = [resetConnectionStep, ...updatedStepsWithEmbeddedDefaults];
+    app.auth.sharedReconnectionSteps = [
+      resetConnectionStep,
+      ...updatedStepsWithEmbeddedDefaults,
+    ];
   }
 
   return app;
diff --git a/packages/backend/src/helpers/app-assets-handler.ts b/packages/backend/src/helpers/app-assets-handler.js
similarity index 84%
rename from packages/backend/src/helpers/app-assets-handler.ts
rename to packages/backend/src/helpers/app-assets-handler.js
index e537b7c1..f9e9a3fe 100644
--- a/packages/backend/src/helpers/app-assets-handler.ts
+++ b/packages/backend/src/helpers/app-assets-handler.js
@@ -1,6 +1,6 @@
-import express, { Application } from 'express';
+import express from 'express';
 
-const appAssetsHandler = async (app: Application) => {
+const appAssetsHandler = async (app) => {
   app.use('/apps/:appKey/assets/favicon.svg', (req, res, next) => {
     const { appKey } = req.params;
     const svgPath = `${__dirname}/../apps/${appKey}/assets/favicon.svg`;
diff --git a/packages/backend/src/helpers/app-info-converter.ts b/packages/backend/src/helpers/app-info-converter.js
similarity index 84%
rename from packages/backend/src/helpers/app-info-converter.ts
rename to packages/backend/src/helpers/app-info-converter.js
index c5e4aa26..f2e1202b 100644
--- a/packages/backend/src/helpers/app-info-converter.ts
+++ b/packages/backend/src/helpers/app-info-converter.js
@@ -1,7 +1,6 @@
-import type { IApp } from '@automatisch/types';
 import appConfig from '../config/app';
 
-const appInfoConverter = (rawAppData: IApp) => {
+const appInfoConverter = (rawAppData) => {
   rawAppData.iconUrl = rawAppData.iconUrl.replace(
     '{BASE_URL}',
     appConfig.baseUrl
diff --git a/packages/backend/src/helpers/authentication.ts b/packages/backend/src/helpers/authentication.js
similarity index 97%
rename from packages/backend/src/helpers/authentication.ts
rename to packages/backend/src/helpers/authentication.js
index 83a5d060..cf4a022c 100644
--- a/packages/backend/src/helpers/authentication.ts
+++ b/packages/backend/src/helpers/authentication.js
@@ -9,9 +9,8 @@ const isAuthenticated = rule()(async (_parent, _args, req) => {
   if (token == null) return false;
 
   try {
-    const { userId } = jwt.verify(token, appConfig.appSecretKey) as {
-      userId: string;
-    };
+    const { userId } = jwt.verify(token, appConfig.appSecretKey);
+
     req.currentUser = await User.query()
       .findById(userId)
       .leftJoinRelated({
diff --git a/packages/backend/src/helpers/axios-with-proxy.ts b/packages/backend/src/helpers/axios-with-proxy.js
similarity index 86%
rename from packages/backend/src/helpers/axios-with-proxy.ts
rename to packages/backend/src/helpers/axios-with-proxy.js
index c280b534..7754fd43 100644
--- a/packages/backend/src/helpers/axios-with-proxy.ts
+++ b/packages/backend/src/helpers/axios-with-proxy.js
@@ -1,8 +1,8 @@
-import axios, { AxiosRequestConfig } from 'axios';
+import axios from 'axios';
 import { HttpsProxyAgent } from 'https-proxy-agent';
 import { HttpProxyAgent } from 'http-proxy-agent';
 
-const config: AxiosRequestConfig = {};
+const config = {};
 const httpProxyUrl = process.env.http_proxy;
 const httpsProxyUrl = process.env.https_proxy;
 const supportsProxy = httpProxyUrl || httpsProxyUrl;
diff --git a/packages/backend/src/helpers/billing/index.ee.ts b/packages/backend/src/helpers/billing/index.ee.js
similarity index 100%
rename from packages/backend/src/helpers/billing/index.ee.ts
rename to packages/backend/src/helpers/billing/index.ee.js
diff --git a/packages/backend/src/helpers/billing/paddle.ee.ts b/packages/backend/src/helpers/billing/paddle.ee.js
similarity index 91%
rename from packages/backend/src/helpers/billing/paddle.ee.ts
rename to packages/backend/src/helpers/billing/paddle.ee.js
index aef02129..94d12f60 100644
--- a/packages/backend/src/helpers/billing/paddle.ee.ts
+++ b/packages/backend/src/helpers/billing/paddle.ee.js
@@ -9,7 +9,7 @@ const PADDLE_VENDOR_URL = appConfig.isDev
 
 const axiosInstance = axios.create({ baseURL: PADDLE_VENDOR_URL });
 
-const getSubscription = async (subscriptionId: number) => {
+const getSubscription = async (subscriptionId) => {
   const data = {
     vendor_id: appConfig.paddleVendorId,
     vendor_auth_code: appConfig.paddleVendorAuthCode,
@@ -24,7 +24,7 @@ const getSubscription = async (subscriptionId: number) => {
   return subscription;
 };
 
-const getInvoices = async (subscriptionId: number) => {
+const getInvoices = async (subscriptionId) => {
   // TODO: iterate over previous subscriptions and include their invoices
   const data = {
     vendor_id: appConfig.paddleVendorId,
diff --git a/packages/backend/src/helpers/billing/plans.ee.ts b/packages/backend/src/helpers/billing/plans.ee.js
similarity index 91%
rename from packages/backend/src/helpers/billing/plans.ee.ts
rename to packages/backend/src/helpers/billing/plans.ee.js
index 284243c8..2456b71d 100644
--- a/packages/backend/src/helpers/billing/plans.ee.ts
+++ b/packages/backend/src/helpers/billing/plans.ee.js
@@ -22,7 +22,7 @@ const prodPlans = [
 
 const plans = appConfig.isProd ? prodPlans : testPlans;
 
-export function getPlanById(id: string) {
+export function getPlanById(id) {
   return plans.find((plan) => plan.productId === id);
 }
 
diff --git a/packages/backend/src/helpers/billing/webhooks.ee.ts b/packages/backend/src/helpers/billing/webhooks.ee.js
similarity index 82%
rename from packages/backend/src/helpers/billing/webhooks.ee.ts
rename to packages/backend/src/helpers/billing/webhooks.ee.js
index 8390153e..3a98ca61 100644
--- a/packages/backend/src/helpers/billing/webhooks.ee.ts
+++ b/packages/backend/src/helpers/billing/webhooks.ee.js
@@ -1,8 +1,7 @@
-import { IRequest } from '@automatisch/types';
 import Subscription from '../../models/subscription.ee';
 import Billing from './index.ee';
 
-const handleSubscriptionCreated = async (request: IRequest) => {
+const handleSubscriptionCreated = async (request) => {
   const subscription = await Subscription.query().insertAndFetch(
     formatSubscription(request)
   );
@@ -11,7 +10,7 @@ const handleSubscriptionCreated = async (request: IRequest) => {
     .insert(formatUsageData(request));
 };
 
-const handleSubscriptionUpdated = async (request: IRequest) => {
+const handleSubscriptionUpdated = async (request) => {
   await Subscription.query()
     .findOne({
       paddle_subscription_id: request.body.subscription_id,
@@ -19,7 +18,7 @@ const handleSubscriptionUpdated = async (request: IRequest) => {
     .patch(formatSubscription(request));
 };
 
-const handleSubscriptionCancelled = async (request: IRequest) => {
+const handleSubscriptionCancelled = async (request) => {
   const subscription = await Subscription.query().findOne({
     paddle_subscription_id: request.body.subscription_id,
   });
@@ -27,7 +26,7 @@ const handleSubscriptionCancelled = async (request: IRequest) => {
   await subscription.$query().patchAndFetch(formatSubscription(request));
 };
 
-const handleSubscriptionPaymentSucceeded = async (request: IRequest) => {
+const handleSubscriptionPaymentSucceeded = async (request) => {
   const subscription = await Subscription.query()
     .findOne({
       paddle_subscription_id: request.body.subscription_id,
@@ -49,7 +48,7 @@ const handleSubscriptionPaymentSucceeded = async (request: IRequest) => {
     .insert(formatUsageData(request));
 };
 
-const formatSubscription = (request: IRequest) => {
+const formatSubscription = (request) => {
   return {
     userId: JSON.parse(request.body.passthrough).id,
     paddleSubscriptionId: request.body.subscription_id,
@@ -63,7 +62,7 @@ const formatSubscription = (request: IRequest) => {
   };
 };
 
-const formatUsageData = (request: IRequest) => {
+const formatUsageData = (request) => {
   return {
     userId: JSON.parse(request.body.passthrough).id,
     consumedTaskCount: 0,
diff --git a/packages/backend/src/helpers/check-worker-readiness.ts b/packages/backend/src/helpers/check-worker-readiness.js
similarity index 100%
rename from packages/backend/src/helpers/check-worker-readiness.ts
rename to packages/backend/src/helpers/check-worker-readiness.js
diff --git a/packages/backend/src/helpers/compile-email.ee.ts b/packages/backend/src/helpers/compile-email.ee.js
similarity index 81%
rename from packages/backend/src/helpers/compile-email.ee.ts
rename to packages/backend/src/helpers/compile-email.ee.js
index 297b48e8..3fd7fb4e 100644
--- a/packages/backend/src/helpers/compile-email.ee.ts
+++ b/packages/backend/src/helpers/compile-email.ee.js
@@ -2,7 +2,7 @@ import * as path from 'path';
 import * as fs from 'fs';
 import * as handlebars from 'handlebars';
 
-const compileEmail = (emailPath: string, replacements: object = {}): string => {
+const compileEmail = (emailPath, replacements = {}) => {
   const filePath = path.join(__dirname, `../views/emails/${emailPath}.ee.hbs`);
   const source = fs.readFileSync(filePath, 'utf-8').toString();
   const template = handlebars.compile(source);
diff --git a/packages/backend/src/helpers/compute-parameters.ts b/packages/backend/src/helpers/compute-parameters.js
similarity index 77%
rename from packages/backend/src/helpers/compute-parameters.ts
rename to packages/backend/src/helpers/compute-parameters.js
index 93ef9dd3..d29252b6 100644
--- a/packages/backend/src/helpers/compute-parameters.ts
+++ b/packages/backend/src/helpers/compute-parameters.js
@@ -1,23 +1,18 @@
-import Step from '../models/step';
-import ExecutionStep from '../models/execution-step';
 import get from 'lodash.get';
 
 const variableRegExp = /({{step\.[\da-zA-Z-]+(?:\.[^.}{]+)+}})/g;
 
-export default function computeParameters(
-  parameters: Step['parameters'],
-  executionSteps: ExecutionStep[]
-): Step['parameters'] {
+export default function computeParameters(parameters, executionSteps) {
   const entries = Object.entries(parameters);
-  return entries.reduce((result, [key, value]: [string, unknown]) => {
+  return entries.reduce((result, [key, value]) => {
     if (typeof value === 'string') {
       const parts = value.split(variableRegExp);
 
       const computedValue = parts
-        .map((part: string) => {
+        .map((part) => {
           const isVariable = part.match(variableRegExp);
           if (isVariable) {
-            const stepIdAndKeyPath = part.replace(/{{step.|}}/g, '') as string;
+            const stepIdAndKeyPath = part.replace(/{{step.|}}/g, '');
             const [stepId, ...keyPaths] = stepIdAndKeyPath.split('.');
             const keyPath = keyPaths.join('.');
             const executionStep = executionSteps.find((executionStep) => {
diff --git a/packages/backend/src/helpers/create-auth-token-by-user-id.ts b/packages/backend/src/helpers/create-auth-token-by-user-id.js
similarity index 83%
rename from packages/backend/src/helpers/create-auth-token-by-user-id.ts
rename to packages/backend/src/helpers/create-auth-token-by-user-id.js
index afc3fe19..b41017c8 100644
--- a/packages/backend/src/helpers/create-auth-token-by-user-id.ts
+++ b/packages/backend/src/helpers/create-auth-token-by-user-id.js
@@ -3,7 +3,7 @@ import appConfig from '../config/app';
 
 const TOKEN_EXPIRES_IN = '14d';
 
-const createAuthTokenByUserId = (userId: string) => {
+const createAuthTokenByUserId = (userId) => {
   const token = jwt.sign({ userId }, appConfig.appSecretKey, {
     expiresIn: TOKEN_EXPIRES_IN,
   });
diff --git a/packages/backend/src/helpers/create-bull-board-handler.ts b/packages/backend/src/helpers/create-bull-board-handler.js
similarity index 94%
rename from packages/backend/src/helpers/create-bull-board-handler.ts
rename to packages/backend/src/helpers/create-bull-board-handler.js
index 6b16467d..909d28f0 100644
--- a/packages/backend/src/helpers/create-bull-board-handler.ts
+++ b/packages/backend/src/helpers/create-bull-board-handler.js
@@ -31,7 +31,7 @@ const shouldEnableBullDashboard = () => {
   );
 };
 
-const createBullBoardHandler = async (serverAdapter: ExpressAdapter) => {
+const createBullBoardHandler = async (serverAdapter) => {
   if (!shouldEnableBullDashboard) return;
 
   createBullBoard({
diff --git a/packages/backend/src/helpers/define-action.js b/packages/backend/src/helpers/define-action.js
new file mode 100644
index 00000000..fc3b45ef
--- /dev/null
+++ b/packages/backend/src/helpers/define-action.js
@@ -0,0 +1,3 @@
+export default function defineAction(actionDefinition) {
+  return actionDefinition;
+}
diff --git a/packages/backend/src/helpers/define-action.ts b/packages/backend/src/helpers/define-action.ts
deleted file mode 100644
index 6d8bf92c..00000000
--- a/packages/backend/src/helpers/define-action.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import { IRawAction } from '@automatisch/types';
-
-export default function defineAction(actionDefinition: IRawAction): IRawAction {
-  return actionDefinition;
-}
diff --git a/packages/backend/src/helpers/define-app.js b/packages/backend/src/helpers/define-app.js
new file mode 100644
index 00000000..3630f474
--- /dev/null
+++ b/packages/backend/src/helpers/define-app.js
@@ -0,0 +1,3 @@
+export default function defineApp(appDefinition) {
+  return appDefinition;
+}
diff --git a/packages/backend/src/helpers/define-app.ts b/packages/backend/src/helpers/define-app.ts
deleted file mode 100644
index a8ca6b44..00000000
--- a/packages/backend/src/helpers/define-app.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import { IApp } from '@automatisch/types';
-
-export default function defineApp(appDefinition: IApp): IApp {
-  return appDefinition;
-}
diff --git a/packages/backend/src/helpers/define-trigger.js b/packages/backend/src/helpers/define-trigger.js
new file mode 100644
index 00000000..008bdf18
--- /dev/null
+++ b/packages/backend/src/helpers/define-trigger.js
@@ -0,0 +1,3 @@
+export default function defineTrigger(triggerDefinition) {
+  return triggerDefinition;
+}
diff --git a/packages/backend/src/helpers/define-trigger.ts b/packages/backend/src/helpers/define-trigger.ts
deleted file mode 100644
index 19b5c39d..00000000
--- a/packages/backend/src/helpers/define-trigger.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { IRawTrigger } from '@automatisch/types';
-
-export default function defineTrigger(
-  triggerDefinition: IRawTrigger
-): IRawTrigger {
-  return triggerDefinition;
-}
diff --git a/packages/backend/src/helpers/delay-as-milliseconds.js b/packages/backend/src/helpers/delay-as-milliseconds.js
new file mode 100644
index 00000000..c9e7dff7
--- /dev/null
+++ b/packages/backend/src/helpers/delay-as-milliseconds.js
@@ -0,0 +1,19 @@
+import delayForAsMilliseconds from './delay-for-as-milliseconds';
+import delayUntilAsMilliseconds from './delay-until-as-milliseconds';
+
+const delayAsMilliseconds = (eventKey, computedParameters) => {
+  let delayDuration = 0;
+
+  if (eventKey === 'delayFor') {
+    const { delayForUnit, delayForValue } = computedParameters;
+
+    delayDuration = delayForAsMilliseconds(delayForUnit, Number(delayForValue));
+  } else if (eventKey === 'delayUntil') {
+    const { delayUntil } = computedParameters;
+    delayDuration = delayUntilAsMilliseconds(delayUntil);
+  }
+
+  return delayDuration;
+};
+
+export default delayAsMilliseconds;
diff --git a/packages/backend/src/helpers/delay-as-milliseconds.ts b/packages/backend/src/helpers/delay-as-milliseconds.ts
deleted file mode 100644
index 8f60dd03..00000000
--- a/packages/backend/src/helpers/delay-as-milliseconds.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-import Step from '../models/step';
-import delayForAsMilliseconds, {
-  TDelayForUnit,
-} from './delay-for-as-milliseconds';
-import delayUntilAsMilliseconds from './delay-until-as-milliseconds';
-
-const delayAsMilliseconds = (eventKey: Step["key"], computedParameters: Step["parameters"]) => {
-  let delayDuration = 0;
-
-  if (eventKey === 'delayFor') {
-    const { delayForUnit, delayForValue } = computedParameters;
-
-    delayDuration = delayForAsMilliseconds(
-      delayForUnit as TDelayForUnit,
-      Number(delayForValue)
-    );
-  } else if (eventKey === 'delayUntil') {
-    const { delayUntil } = computedParameters;
-    delayDuration = delayUntilAsMilliseconds(delayUntil as string);
-  }
-
-  return delayDuration;
-};
-
-export default delayAsMilliseconds;
diff --git a/packages/backend/src/helpers/delay-for-as-milliseconds.ts b/packages/backend/src/helpers/delay-for-as-milliseconds.js
similarity index 69%
rename from packages/backend/src/helpers/delay-for-as-milliseconds.ts
rename to packages/backend/src/helpers/delay-for-as-milliseconds.js
index 582d1b13..e3ae5862 100644
--- a/packages/backend/src/helpers/delay-for-as-milliseconds.ts
+++ b/packages/backend/src/helpers/delay-for-as-milliseconds.js
@@ -1,9 +1,4 @@
-export type TDelayForUnit = 'minutes' | 'hours' | 'days' | 'weeks';
-
-const delayAsMilliseconds = (
-  delayForUnit: TDelayForUnit,
-  delayForValue: number
-) => {
+const delayAsMilliseconds = (delayForUnit, delayForValue) => {
   switch (delayForUnit) {
     case 'minutes':
       return delayForValue * 60 * 1000;
diff --git a/packages/backend/src/helpers/delay-until-as-milliseconds.ts b/packages/backend/src/helpers/delay-until-as-milliseconds.js
similarity index 74%
rename from packages/backend/src/helpers/delay-until-as-milliseconds.ts
rename to packages/backend/src/helpers/delay-until-as-milliseconds.js
index 4c1da96c..4508fa88 100644
--- a/packages/backend/src/helpers/delay-until-as-milliseconds.ts
+++ b/packages/backend/src/helpers/delay-until-as-milliseconds.js
@@ -1,4 +1,4 @@
-const delayUntilAsMilliseconds = (delayUntil: string) => {
+const delayUntilAsMilliseconds = (delayUntil) => {
   const delayUntilDate = new Date(delayUntil);
   const now = new Date();
 
diff --git a/packages/backend/src/helpers/find-or-create-user-by-saml-identity.ee.ts b/packages/backend/src/helpers/find-or-create-user-by-saml-identity.ee.js
similarity index 74%
rename from packages/backend/src/helpers/find-or-create-user-by-saml-identity.ee.ts
rename to packages/backend/src/helpers/find-or-create-user-by-saml-identity.ee.js
index 2a0372ad..368f917e 100644
--- a/packages/backend/src/helpers/find-or-create-user-by-saml-identity.ee.ts
+++ b/packages/backend/src/helpers/find-or-create-user-by-saml-identity.ee.js
@@ -1,22 +1,17 @@
-import SamlAuthProvider from '../models/saml-auth-provider.ee';
 import User from '../models/user';
 import Identity from '../models/identity.ee';
-import SamlAuthProvidersRoleMapping from '../models/saml-auth-providers-role-mapping.ee';
 
-const getUser = (
-  user: Record<string, unknown>,
-  providerConfig: SamlAuthProvider
-) => ({
+const getUser = (user, providerConfig) => ({
   name: user[providerConfig.firstnameAttributeName],
   surname: user[providerConfig.surnameAttributeName],
   id: user.nameID,
   email: user[providerConfig.emailAttributeName],
-  role: user[providerConfig.roleAttributeName] as string | string[],
+  role: user[providerConfig.roleAttributeName],
 });
 
 const findOrCreateUserBySamlIdentity = async (
-  userIdentity: Record<string, unknown>,
-  samlAuthProvider: SamlAuthProvider
+  userIdentity,
+  samlAuthProvider
 ) => {
   const mappedUser = getUser(userIdentity, samlAuthProvider);
   const identity = await Identity.query().findOne({
@@ -46,12 +41,12 @@ const findOrCreateUserBySamlIdentity = async (
         fullName: [mappedUser.name, mappedUser.surname]
           .filter(Boolean)
           .join(' '),
-        email: mappedUser.email as string,
+        email: mappedUser.email,
         roleId:
           samlAuthProviderRoleMapping?.roleId || samlAuthProvider.defaultRoleId,
         identities: [
           {
-            remoteId: mappedUser.id as string,
+            remoteId: mappedUser.id,
             providerId: samlAuthProvider.id,
             providerType: 'saml',
           },
diff --git a/packages/backend/src/helpers/get-app.ts b/packages/backend/src/helpers/get-app.js
similarity index 65%
rename from packages/backend/src/helpers/get-app.ts
rename to packages/backend/src/helpers/get-app.js
index 436965d4..e4f1bcab 100644
--- a/packages/backend/src/helpers/get-app.ts
+++ b/packages/backend/src/helpers/get-app.js
@@ -1,17 +1,9 @@
 import path from 'node:path';
 import fs from 'node:fs';
-import {
-  IAction,
-  IApp,
-  IRawAction,
-  IRawTrigger,
-  ITrigger,
-} from '@automatisch/types';
 import { omit, cloneDeep } from 'lodash';
 import addAuthenticationSteps from './add-authentication-steps';
 import addReconnectionSteps from './add-reconnection-steps';
 
-type TApps = Record<string, Promise<{ default: IApp }>>;
 const apps = fs
   .readdirSync(path.resolve(__dirname, `../apps/`), { withFileTypes: true })
   .reduce((apps, dirent) => {
@@ -20,33 +12,35 @@ const apps = fs
     apps[dirent.name] = import(path.resolve(__dirname, '../apps', dirent.name));
 
     return apps;
-  }, {} as TApps);
+  }, {});
 
-async function getAppDefaultExport(appKey: string) {
+async function getAppDefaultExport(appKey) {
   if (!Object.prototype.hasOwnProperty.call(apps, appKey)) {
-    throw new Error(`An application with the "${appKey}" key couldn't be found.`);
+    throw new Error(
+      `An application with the "${appKey}" key couldn't be found.`
+    );
   }
 
   return (await apps[appKey]).default;
 }
 
-function stripFunctions<C>(data: C): C {
+function stripFunctions(data) {
   return JSON.parse(JSON.stringify(data));
 }
 
-const getApp = async (appKey: string, stripFuncs = true) => {
-  let appData: IApp = cloneDeep(await getAppDefaultExport(appKey));
+const getApp = async (appKey, stripFuncs = true) => {
+  let appData = cloneDeep(await getAppDefaultExport(appKey));
 
   if (appData.auth) {
     appData = addAuthenticationSteps(appData);
     appData = addReconnectionSteps(appData);
   }
 
-  appData.triggers = appData?.triggers?.map((trigger: IRawTrigger) => {
+  appData.triggers = appData?.triggers?.map((trigger) => {
     return addStaticSubsteps('trigger', appData, trigger);
   });
 
-  appData.actions = appData?.actions?.map((action: IRawAction) => {
+  appData.actions = appData?.actions?.map((action) => {
     return addStaticSubsteps('action', appData, action);
   });
 
@@ -62,19 +56,15 @@ const chooseConnectionStep = {
   name: 'Choose connection',
 };
 
-const testStep = (stepType: 'trigger' | 'action') => {
+const testStep = (stepType) => {
   return {
     key: 'testStep',
     name: stepType === 'trigger' ? 'Test trigger' : 'Test action',
   };
 };
 
-const addStaticSubsteps = (
-  stepType: 'trigger' | 'action',
-  appData: IApp,
-  step: IRawTrigger | IRawAction
-) => {
-  const computedStep: ITrigger | IAction = omit(step, ['arguments']);
+const addStaticSubsteps = (stepType, appData, step) => {
+  const computedStep = omit(step, ['arguments']);
 
   computedStep.substeps = [];
 
diff --git a/packages/backend/src/helpers/global-variable.ts b/packages/backend/src/helpers/global-variable.js
similarity index 78%
rename from packages/backend/src/helpers/global-variable.ts
rename to packages/backend/src/helpers/global-variable.js
index db3c8d85..5b49467f 100644
--- a/packages/backend/src/helpers/global-variable.ts
+++ b/packages/backend/src/helpers/global-variable.js
@@ -1,32 +1,8 @@
 import createHttpClient from './http-client';
-import Connection from '../models/connection';
-import Flow from '../models/flow';
-import Step from '../models/step';
-import Execution from '../models/execution';
-import {
-  IJSONObject,
-  IApp,
-  IGlobalVariable,
-  ITriggerItem,
-  IActionItem,
-  IRequest,
-} from '@automatisch/types';
 import EarlyExitError from '../errors/early-exit';
 import AlreadyProcessedError from '../errors/already-processed';
 
-type GlobalVariableOptions = {
-  connection?: Connection;
-  app?: IApp;
-  flow?: Flow;
-  step?: Step;
-  execution?: Execution;
-  testRun?: boolean;
-  request?: IRequest;
-};
-
-const globalVariable = async (
-  options: GlobalVariableOptions
-): Promise<IGlobalVariable> => {
+const globalVariable = async (options) => {
   const {
     connection,
     app,
@@ -41,9 +17,9 @@ const globalVariable = async (
   const lastInternalId = testRun ? undefined : await flow?.lastInternalId();
   const nextStep = await step?.getNextStep();
 
-  const $: IGlobalVariable = {
+  const $ = {
     auth: {
-      set: async (args: IJSONObject) => {
+      set: async (args) => {
         if (connection) {
           await connection.$query().patchAndFetch({
             formattedData: {
@@ -91,7 +67,7 @@ const globalVariable = async (
         raw: null,
       },
     },
-    pushTriggerItem: (triggerItem: ITriggerItem) => {
+    pushTriggerItem: (triggerItem) => {
       if (
         isAlreadyProcessed(triggerItem.meta.internalId) &&
         !$.execution.testRun
@@ -109,7 +85,7 @@ const globalVariable = async (
         throw new EarlyExitError();
       }
     },
-    setActionItem: (actionItem: IActionItem) => {
+    setActionItem: (actionItem) => {
       $.actionOutput.data = actionItem;
     },
   };
@@ -151,7 +127,7 @@ const globalVariable = async (
       ? []
       : await flow?.lastInternalIds(2000);
 
-  const isAlreadyProcessed = (internalId: string) => {
+  const isAlreadyProcessed = (internalId) => {
     return lastInternalIds?.includes(internalId);
   };
 
diff --git a/packages/backend/src/helpers/graphql-instance.ts b/packages/backend/src/helpers/graphql-instance.js
similarity index 82%
rename from packages/backend/src/helpers/graphql-instance.ts
rename to packages/backend/src/helpers/graphql-instance.js
index fe5d0398..c4bf1c1b 100644
--- a/packages/backend/src/helpers/graphql-instance.ts
+++ b/packages/backend/src/helpers/graphql-instance.js
@@ -6,9 +6,9 @@ import { addResolversToSchema } from '@graphql-tools/schema';
 import { applyMiddleware } from 'graphql-middleware';
 
 import appConfig from '../config/app';
-import logger from '../helpers/logger';
-import authentication from '../helpers/authentication';
-import * as Sentry from '../helpers/sentry.ee';
+import logger from './logger';
+import authentication from './authentication';
+import * as Sentry from './sentry.ee';
 import resolvers from '../graphql/resolvers';
 import HttpError from '../errors/http';
 
@@ -28,7 +28,7 @@ const graphQLInstance = graphqlHTTP({
     logger.error(error.path + ' : ' + error.message + '\n' + error.stack);
 
     if (error.originalError instanceof HttpError) {
-      delete (error.originalError as HttpError).response;
+      delete error.originalError.response;
     }
 
     Sentry.captureException(error, {
@@ -36,9 +36,9 @@ const graphQLInstance = graphqlHTTP({
       extra: {
         source: error.source?.body,
         positions: error.positions,
-        path: error.path
-      }
-    })
+        path: error.path,
+      },
+    });
 
     return error;
   },
diff --git a/packages/backend/src/helpers/http-client/index.ts b/packages/backend/src/helpers/http-client/index.js
similarity index 55%
rename from packages/backend/src/helpers/http-client/index.ts
rename to packages/backend/src/helpers/http-client/index.js
index 741782f5..bf88f755 100644
--- a/packages/backend/src/helpers/http-client/index.ts
+++ b/packages/backend/src/helpers/http-client/index.js
@@ -1,14 +1,10 @@
-import { IHttpClientParams } from '@automatisch/types';
-import { InternalAxiosRequestConfig } from 'axios';
 import { URL } from 'node:url';
 export { AxiosInstance as IHttpClient } from 'axios';
 
 import HttpError from '../../errors/http';
 import axios from '../axios-with-proxy';
 
-const removeBaseUrlForAbsoluteUrls = (
-  requestConfig: InternalAxiosRequestConfig
-): InternalAxiosRequestConfig => {
+const removeBaseUrlForAbsoluteUrls = (requestConfig) => {
   try {
     const url = new URL(requestConfig.url);
     requestConfig.baseURL = url.origin;
@@ -20,33 +16,27 @@ const removeBaseUrlForAbsoluteUrls = (
   }
 };
 
-export default function createHttpClient({
-  $,
-  baseURL,
-  beforeRequest = [],
-}: IHttpClientParams) {
+export default function createHttpClient({ $, baseURL, beforeRequest = [] }) {
   const instance = axios.create({
     baseURL,
   });
 
-  instance.interceptors.request.use(
-    (requestConfig: InternalAxiosRequestConfig): InternalAxiosRequestConfig => {
-      const newRequestConfig = removeBaseUrlForAbsoluteUrls(requestConfig);
+  instance.interceptors.request.use((requestConfig) => {
+    const newRequestConfig = removeBaseUrlForAbsoluteUrls(requestConfig);
 
-      const result = beforeRequest.reduce((newConfig, beforeRequestFunc) => {
-        return beforeRequestFunc($, newConfig);
-      }, newRequestConfig);
+    const result = beforeRequest.reduce((newConfig, beforeRequestFunc) => {
+      return beforeRequestFunc($, newConfig);
+    }, newRequestConfig);
 
-      /**
-       * axios seems to want InternalAxiosRequestConfig returned not AxioRequestConfig
-       * anymore even though requests do require AxiosRequestConfig.
-       *
-       * Since both interfaces are very similar (InternalAxiosRequestConfig
-       * extends AxiosRequestConfig), we can utilize an assertion below
-       **/
-      return result as InternalAxiosRequestConfig;
-    }
-  );
+    /**
+     * axios seems to want InternalAxiosRequestConfig returned not AxioRequestConfig
+     * anymore even though requests do require AxiosRequestConfig.
+     *
+     * Since both interfaces are very similar (InternalAxiosRequestConfig
+     * extends AxiosRequestConfig), we can utilize an assertion below
+     **/
+    return result;
+  });
 
   instance.interceptors.response.use(
     (response) => response,
diff --git a/packages/backend/src/helpers/inject-bull-board-handler.ts b/packages/backend/src/helpers/inject-bull-board-handler.js
similarity index 75%
rename from packages/backend/src/helpers/inject-bull-board-handler.ts
rename to packages/backend/src/helpers/inject-bull-board-handler.js
index 3e35fa29..c0cd8b25 100644
--- a/packages/backend/src/helpers/inject-bull-board-handler.ts
+++ b/packages/backend/src/helpers/inject-bull-board-handler.js
@@ -1,12 +1,7 @@
-import { Application } from 'express';
-import { ExpressAdapter } from '@bull-board/express';
 import basicAuth from 'express-basic-auth';
 import appConfig from '../config/app';
 
-const injectBullBoardHandler = async (
-  app: Application,
-  serverAdapter: ExpressAdapter
-) => {
+const injectBullBoardHandler = async (app, serverAdapter) => {
   if (
     !appConfig.enableBullMQDashboard ||
     !appConfig.bullMQDashboardUsername ||
diff --git a/packages/backend/src/helpers/license.ee.ts b/packages/backend/src/helpers/license.ee.js
similarity index 100%
rename from packages/backend/src/helpers/license.ee.ts
rename to packages/backend/src/helpers/license.ee.js
diff --git a/packages/backend/src/helpers/logger.ts b/packages/backend/src/helpers/logger.js
similarity index 100%
rename from packages/backend/src/helpers/logger.ts
rename to packages/backend/src/helpers/logger.js
diff --git a/packages/backend/src/helpers/mailer.ee.ts b/packages/backend/src/helpers/mailer.ee.js
similarity index 100%
rename from packages/backend/src/helpers/mailer.ee.ts
rename to packages/backend/src/helpers/mailer.ee.js
diff --git a/packages/backend/src/helpers/morgan.ts b/packages/backend/src/helpers/morgan.js
similarity index 72%
rename from packages/backend/src/helpers/morgan.ts
rename to packages/backend/src/helpers/morgan.js
index 10652b9a..b2144cf3 100644
--- a/packages/backend/src/helpers/morgan.ts
+++ b/packages/backend/src/helpers/morgan.js
@@ -1,14 +1,13 @@
-import morgan, { StreamOptions } from 'morgan';
-import { Request } from 'express';
+import morgan from 'morgan';
 import logger from './logger';
 
-const stream: StreamOptions = {
+const stream = {
   write: (message) =>
     logger.http(message.substring(0, message.lastIndexOf('\n'))),
 };
 
 const registerGraphQLToken = () => {
-  morgan.token('graphql-query', (req: Request) => {
+  morgan.token('graphql-query', (req) => {
     if (req.body.query) {
       return `GraphQL ${req.body.query}`;
     }
diff --git a/packages/backend/src/helpers/pagination.ts b/packages/backend/src/helpers/pagination.js
similarity index 59%
rename from packages/backend/src/helpers/pagination.ts
rename to packages/backend/src/helpers/pagination.js
index 77916052..419df03f 100644
--- a/packages/backend/src/helpers/pagination.ts
+++ b/packages/backend/src/helpers/pagination.js
@@ -1,12 +1,4 @@
-import { Model } from 'objection';
-import ExtendedQueryBuilder from '../models/query-builder';
-import type Base from '../models/base';
-
-const paginate = async (
-  query: ExtendedQueryBuilder<Model, Model[]>,
-  limit: number,
-  offset: number,
-) => {
+const paginate = async (query, limit, offset) => {
   if (limit < 1 || limit > 100) {
     throw new Error('Limit must be between 1 and 100');
   }
@@ -22,7 +14,7 @@ const paginate = async (
       totalPages: Math.ceil(count / limit),
     },
     totalCount: count,
-    edges: records.map((record: Base) => ({
+    edges: records.map((record) => ({
       node: record,
     })),
   };
diff --git a/packages/backend/src/helpers/parse-header-link.ts b/packages/backend/src/helpers/parse-header-link.js
similarity index 51%
rename from packages/backend/src/helpers/parse-header-link.ts
rename to packages/backend/src/helpers/parse-header-link.js
index b636cae6..face70f8 100644
--- a/packages/backend/src/helpers/parse-header-link.ts
+++ b/packages/backend/src/helpers/parse-header-link.js
@@ -1,38 +1,16 @@
-type TParameters = {
-  [key: string]: string;
-  rel?: string;
-};
-
-type TReference = {
-  uri: string;
-  parameters: TParameters;
-};
-
-type TRel = 'next' | 'prev' | 'first' | 'last';
-
-type TParsedLinkHeader = {
-  next?: TReference;
-  prev?: TReference;
-  first?: TReference;
-  last?: TReference;
-};
-
-export default function parseLinkHeader(link: string): TParsedLinkHeader {
-  const parsed: TParsedLinkHeader = {};
+export default function parseLinkHeader(link) {
+  const parsed = {};
 
   if (!link) return parsed;
 
   const items = link.split(',');
 
   for (const item of items) {
-    const [rawUriReference, ...rawLinkParameters] = item.split(';') as [
-      string,
-      ...string[]
-    ];
+    const [rawUriReference, ...rawLinkParameters] = item.split(';');
     const trimmedUriReference = rawUriReference.trim();
 
     const reference = trimmedUriReference.slice(1, -1);
-    const parameters: TParameters = {};
+    const parameters = {};
 
     for (const rawParameter of rawLinkParameters) {
       const trimmedRawParameter = rawParameter.trim();
@@ -41,7 +19,7 @@ export default function parseLinkHeader(link: string): TParsedLinkHeader {
       parameters[key.trim()] = value.slice(1, -1);
     }
 
-    parsed[parameters.rel as TRel] = {
+    parsed[parameters.rel] = {
       uri: reference,
       parameters,
     };
diff --git a/packages/backend/src/helpers/passport.js b/packages/backend/src/helpers/passport.js
new file mode 100644
index 00000000..122d06de
--- /dev/null
+++ b/packages/backend/src/helpers/passport.js
@@ -0,0 +1,89 @@
+import { URL } from 'node:url';
+import { MultiSamlStrategy } from '@node-saml/passport-saml';
+import passport from 'passport';
+
+import appConfig from '../config/app';
+import createAuthTokenByUserId from './create-auth-token-by-user-id';
+import SamlAuthProvider from '../models/saml-auth-provider.ee';
+import findOrCreateUserBySamlIdentity from './find-or-create-user-by-saml-identity.ee';
+
+export default function configurePassport(app) {
+  app.use(
+    passport.initialize({
+      userProperty: 'currentUser',
+    })
+  );
+
+  passport.use(
+    new MultiSamlStrategy(
+      {
+        passReqToCallback: true,
+        getSamlOptions: async function (request, done) {
+          const { issuer } = request.params;
+          const notFoundIssuer = new Error('Issuer cannot be found!');
+
+          if (!issuer) return done(notFoundIssuer);
+
+          const authProvider = await SamlAuthProvider.query().findOne({
+            issuer: request.params.issuer,
+          });
+
+          if (!authProvider) {
+            return done(notFoundIssuer);
+          }
+
+          return done(null, authProvider.config);
+        },
+      },
+      async function (request, user, done) {
+        const { issuer } = request.params;
+        const notFoundIssuer = new Error('Issuer cannot be found!');
+
+        if (!issuer) return done(notFoundIssuer);
+
+        const authProvider = await SamlAuthProvider.query().findOne({
+          issuer: request.params.issuer,
+        });
+
+        if (!authProvider) {
+          return done(notFoundIssuer);
+        }
+
+        const foundUserWithIdentity = await findOrCreateUserBySamlIdentity(
+          user,
+          authProvider
+        );
+        return done(null, foundUserWithIdentity);
+      },
+      function (request, user, done) {
+        return done(null, null);
+      }
+    )
+  );
+
+  app.get(
+    '/login/saml/:issuer',
+    passport.authenticate('saml', {
+      session: false,
+      successRedirect: '/',
+    })
+  );
+
+  app.post(
+    '/login/saml/:issuer/callback',
+    passport.authenticate('saml', {
+      session: false,
+      failureRedirect: '/',
+      failureFlash: true,
+    }),
+    (req, res) => {
+      const token = createAuthTokenByUserId(req.currentUser.id);
+
+      const redirectUrl = new URL(
+        `/login/callback?token=${token}`,
+        appConfig.webAppUrl
+      ).toString();
+      res.redirect(redirectUrl);
+    }
+  );
+}
diff --git a/packages/backend/src/helpers/passport.ts b/packages/backend/src/helpers/passport.ts
deleted file mode 100644
index 19e24d0f..00000000
--- a/packages/backend/src/helpers/passport.ts
+++ /dev/null
@@ -1,84 +0,0 @@
-import { URL } from 'node:url';
-import { IRequest } from '@automatisch/types';
-import { MultiSamlStrategy } from '@node-saml/passport-saml';
-import { Express } from 'express';
-import passport from 'passport';
-
-import appConfig from '../config/app';
-import createAuthTokenByUserId from '../helpers/create-auth-token-by-user-id';
-import SamlAuthProvider from '../models/saml-auth-provider.ee';
-import findOrCreateUserBySamlIdentity from './find-or-create-user-by-saml-identity.ee'
-
-export default function configurePassport(app: Express) {
-  app.use(passport.initialize({
-    userProperty: 'currentUser',
-  }));
-
-  passport.use(new MultiSamlStrategy(
-    {
-      passReqToCallback: true,
-      getSamlOptions: async function (request, done) {
-        const { issuer } = request.params;
-        const notFoundIssuer = new Error('Issuer cannot be found!');
-
-        if (!issuer) return done(notFoundIssuer);
-
-        const authProvider = await SamlAuthProvider.query().findOne({
-          issuer: request.params.issuer as string,
-        });
-
-        if (!authProvider) {
-          return done(notFoundIssuer);
-        }
-
-        return done(null, authProvider.config);
-      },
-    },
-    async function (request, user: Record<string, unknown>, done) {
-      const { issuer } = request.params;
-      const notFoundIssuer = new Error('Issuer cannot be found!');
-
-      if (!issuer) return done(notFoundIssuer);
-
-      const authProvider = await SamlAuthProvider.query().findOne({
-        issuer: request.params.issuer as string,
-      });
-
-      if (!authProvider) {
-        return done(notFoundIssuer);
-      }
-
-      const foundUserWithIdentity = await findOrCreateUserBySamlIdentity(user, authProvider);
-      return done(null, foundUserWithIdentity as unknown as Record<string, unknown>);
-    },
-    function (request, user: Record<string, unknown>, done: (error: any, user: Record<string, unknown>) => void) {
-      return done(null, null);
-    }
-  ));
-
-  app.get('/login/saml/:issuer',
-    passport.authenticate('saml',
-      {
-        session: false,
-        successRedirect: '/',
-      })
-  );
-
-  app.post(
-    '/login/saml/:issuer/callback',
-    passport.authenticate('saml', {
-      session: false,
-      failureRedirect: '/',
-      failureFlash: true,
-    }),
-    (req: IRequest, res) => {
-      const token = createAuthTokenByUserId(req.currentUser.id);
-
-      const redirectUrl = new URL(
-        `/login/callback?token=${token}`,
-        appConfig.webAppUrl,
-      ).toString();
-      res.redirect(redirectUrl);
-    }
-  );
-};
diff --git a/packages/backend/src/helpers/permission-catalog.ee.ts b/packages/backend/src/helpers/permission-catalog.ee.js
similarity index 100%
rename from packages/backend/src/helpers/permission-catalog.ee.ts
rename to packages/backend/src/helpers/permission-catalog.ee.js
diff --git a/packages/backend/src/helpers/remove-job-configuration.ts b/packages/backend/src/helpers/remove-job-configuration.js
similarity index 100%
rename from packages/backend/src/helpers/remove-job-configuration.ts
rename to packages/backend/src/helpers/remove-job-configuration.js
diff --git a/packages/backend/src/helpers/sentry.ee.ts b/packages/backend/src/helpers/sentry.ee.js
similarity index 60%
rename from packages/backend/src/helpers/sentry.ee.ts
rename to packages/backend/src/helpers/sentry.ee.js
index 0810bad0..e427963b 100644
--- a/packages/backend/src/helpers/sentry.ee.ts
+++ b/packages/backend/src/helpers/sentry.ee.js
@@ -1,13 +1,11 @@
-import { Express } from 'express';
 import * as Sentry from '@sentry/node';
-import type { CaptureContext } from '@sentry/types';
 import * as Tracing from '@sentry/tracing';
 
 import appConfig from '../config/app';
 
 const isSentryEnabled = !!appConfig.sentryDsn;
 
-export function init(app?: Express) {
+export function init(app) {
   if (!isSentryEnabled) return;
 
   return Sentry.init({
@@ -22,31 +20,32 @@ export function init(app?: Express) {
   });
 }
 
-
-export function attachRequestHandler(app: Express) {
+export function attachRequestHandler(app) {
   if (!isSentryEnabled) return;
 
   app.use(Sentry.Handlers.requestHandler());
 }
 
-export function attachTracingHandler(app: Express) {
+export function attachTracingHandler(app) {
   if (!isSentryEnabled) return;
 
   app.use(Sentry.Handlers.tracingHandler());
 }
 
-export function attachErrorHandler(app: Express) {
+export function attachErrorHandler(app) {
   if (!isSentryEnabled) return;
 
-  app.use(Sentry.Handlers.errorHandler({
-    shouldHandleError() {
-      // TODO: narrow down the captured errors in time as we receive samples
-      return true;
-    }
-  }));
+  app.use(
+    Sentry.Handlers.errorHandler({
+      shouldHandleError() {
+        // TODO: narrow down the captured errors in time as we receive samples
+        return true;
+      },
+    })
+  );
 }
 
-export function captureException(exception: any, captureContext?: CaptureContext) {
+export function captureException(exception, captureContext) {
   if (!isSentryEnabled) return;
 
   return Sentry.captureException(exception, captureContext);
diff --git a/packages/backend/src/helpers/telemetry/index.ts b/packages/backend/src/helpers/telemetry/index.js
similarity index 80%
rename from packages/backend/src/helpers/telemetry/index.ts
rename to packages/backend/src/helpers/telemetry/index.js
index 38d5472e..7d6701d1 100644
--- a/packages/backend/src/helpers/telemetry/index.ts
+++ b/packages/backend/src/helpers/telemetry/index.js
@@ -1,12 +1,7 @@
-import Analytics, { apiObject } from '@rudderstack/rudder-sdk-node';
+import Analytics from '@rudderstack/rudder-sdk-node';
 import organizationId from './organization-id';
 import instanceId from './instance-id';
 import appConfig from '../../config/app';
-import Step from '../../models/step';
-import Flow from '../../models/flow';
-import Execution from '../../models/execution';
-import ExecutionStep from '../../models/execution-step';
-import Connection from '../../models/connection';
 import os from 'os';
 
 const WRITE_KEY = '284Py4VgK2MsNYV7xlKzyrALx0v';
@@ -15,22 +10,17 @@ const CPUS = os.cpus();
 const SIX_HOURS_IN_MILLISECONDS = 21600000;
 
 class Telemetry {
-  organizationId: string;
-  instanceId: string;
-  client: Analytics;
-  serviceType: string;
-
   constructor() {
     this.client = new Analytics(WRITE_KEY, DATA_PLANE_URL);
     this.organizationId = organizationId();
     this.instanceId = instanceId();
   }
 
-  setServiceType(type: string) {
+  setServiceType(type) {
     this.serviceType = type;
   }
 
-  track(name: string, properties: apiObject) {
+  track(name, properties) {
     if (!appConfig.telemetryEnabled) {
       return;
     }
@@ -48,7 +38,7 @@ class Telemetry {
     });
   }
 
-  stepCreated(step: Step) {
+  stepCreated(step) {
     this.track('stepCreated', {
       stepId: step.id,
       flowId: step.flowId,
@@ -57,7 +47,7 @@ class Telemetry {
     });
   }
 
-  stepUpdated(step: Step) {
+  stepUpdated(step) {
     this.track('stepUpdated', {
       stepId: step.id,
       flowId: step.flowId,
@@ -71,7 +61,7 @@ class Telemetry {
     });
   }
 
-  flowCreated(flow: Flow) {
+  flowCreated(flow) {
     this.track('flowCreated', {
       flowId: flow.id,
       name: flow.name,
@@ -81,7 +71,7 @@ class Telemetry {
     });
   }
 
-  flowUpdated(flow: Flow) {
+  flowUpdated(flow) {
     this.track('flowUpdated', {
       flowId: flow.id,
       name: flow.name,
@@ -91,7 +81,7 @@ class Telemetry {
     });
   }
 
-  executionCreated(execution: Execution) {
+  executionCreated(execution) {
     this.track('executionCreated', {
       executionId: execution.id,
       flowId: execution.flowId,
@@ -101,7 +91,7 @@ class Telemetry {
     });
   }
 
-  executionStepCreated(executionStep: ExecutionStep) {
+  executionStepCreated(executionStep) {
     this.track('executionStepCreated', {
       executionStepId: executionStep.id,
       executionId: executionStep.executionId,
@@ -112,7 +102,7 @@ class Telemetry {
     });
   }
 
-  connectionCreated(connection: Connection) {
+  connectionCreated(connection) {
     this.track('connectionCreated', {
       connectionId: connection.id,
       key: connection.key,
@@ -122,7 +112,7 @@ class Telemetry {
     });
   }
 
-  connectionUpdated(connection: Connection) {
+  connectionUpdated(connection) {
     this.track('connectionUpdated', {
       connectionId: connection.id,
       key: connection.key,
diff --git a/packages/backend/src/helpers/telemetry/instance-id.ts b/packages/backend/src/helpers/telemetry/instance-id.js
similarity index 100%
rename from packages/backend/src/helpers/telemetry/instance-id.ts
rename to packages/backend/src/helpers/telemetry/instance-id.js
diff --git a/packages/backend/src/helpers/telemetry/organization-id.ts b/packages/backend/src/helpers/telemetry/organization-id.js
similarity index 100%
rename from packages/backend/src/helpers/telemetry/organization-id.ts
rename to packages/backend/src/helpers/telemetry/organization-id.js
diff --git a/packages/backend/src/helpers/user-ability.ts b/packages/backend/src/helpers/user-ability.js
similarity index 54%
rename from packages/backend/src/helpers/user-ability.ts
rename to packages/backend/src/helpers/user-ability.js
index b29d5706..74f4620b 100644
--- a/packages/backend/src/helpers/user-ability.ts
+++ b/packages/backend/src/helpers/user-ability.js
@@ -1,20 +1,23 @@
-import { PureAbility, fieldPatternMatcher, mongoQueryMatcher } from '@casl/ability';
-import type User from '../models/user'
+import {
+  PureAbility,
+  fieldPatternMatcher,
+  mongoQueryMatcher,
+} from '@casl/ability';
 
 // Must be kept in sync with `packages/web/src/helpers/userAbility.ts`!
-export default function userAbility(user: Partial<User>) {
+export default function userAbility(user) {
   const permissions = user?.permissions;
   const role = user?.role;
 
   // We're not using mongo, but our fields, conditions match
   const options = {
     conditionsMatcher: mongoQueryMatcher,
-    fieldMatcher: fieldPatternMatcher
+    fieldMatcher: fieldPatternMatcher,
   };
 
   if (!role || !permissions) {
     return new PureAbility([], options);
   }
 
-  return new PureAbility<[string, string], string[]>(permissions, options);
+  return new PureAbility(permissions, options);
 }
diff --git a/packages/backend/src/helpers/web-ui-handler.ts b/packages/backend/src/helpers/web-ui-handler.js
similarity index 85%
rename from packages/backend/src/helpers/web-ui-handler.ts
rename to packages/backend/src/helpers/web-ui-handler.js
index 23484b3e..13b9513f 100644
--- a/packages/backend/src/helpers/web-ui-handler.ts
+++ b/packages/backend/src/helpers/web-ui-handler.js
@@ -1,8 +1,8 @@
-import express, { Application } from 'express';
+import express from 'express';
 import { dirname, join } from 'path';
 import appConfig from '../config/app';
 
-const webUIHandler = async (app: Application) => {
+const webUIHandler = async (app) => {
   if (appConfig.serveWebAppSeparately) return;
 
   const webAppPath = require.resolve('@automatisch/web');
diff --git a/packages/backend/src/helpers/webhook-handler.ts b/packages/backend/src/helpers/webhook-handler.js
similarity index 92%
rename from packages/backend/src/helpers/webhook-handler.ts
rename to packages/backend/src/helpers/webhook-handler.js
index 1f5b5887..9b2f3726 100644
--- a/packages/backend/src/helpers/webhook-handler.ts
+++ b/packages/backend/src/helpers/webhook-handler.js
@@ -1,5 +1,3 @@
-import { Response } from 'express';
-import { IRequest } from '@automatisch/types';
 import isEmpty from 'lodash/isEmpty';
 
 import Flow from '../models/flow';
@@ -12,11 +10,7 @@ import {
   REMOVE_AFTER_7_DAYS_OR_50_JOBS,
 } from './remove-job-configuration';
 
-export default async (
-  flowId: string,
-  request: IRequest,
-  response: Response
-) => {
+export default async (flowId, request, response) => {
   const flow = await Flow.query().findById(flowId).throwIfNotFound();
   const user = await flow.$relatedQuery('user');