diff --git a/src/components/Alert/index.js b/src/components/Alert/index.js
index dc3a722c2331..3fc90433f13e 100644
--- a/src/components/Alert/index.js
+++ b/src/components/Alert/index.js
@@ -5,7 +5,7 @@ import _ from 'underscore';
  *
  * @param {String} title The title of the alert
  * @param {String} description The description of the alert
- * @param {Object[]} options An array of objects with `style` and `onPress` properties
+ * @param {Object[]} [options] An array of objects with `style` and `onPress` properties
  */
 export default (title, description, options) => {
     const result = _.filter(window.confirm([title, description], Boolean)).join('\n');
diff --git a/src/libs/HttpUtils.js b/src/libs/HttpUtils.ts
similarity index 65%
rename from src/libs/HttpUtils.js
rename to src/libs/HttpUtils.ts
index 2df7421ea91c..859c8624833c 100644
--- a/src/libs/HttpUtils.js
+++ b/src/libs/HttpUtils.ts
@@ -1,13 +1,16 @@
 import Onyx from 'react-native-onyx';
-import _ from 'underscore';
+import {ValueOf} from 'type-fest';
 import alert from '@components/Alert';
 import CONST from '@src/CONST';
 import ONYXKEYS from '@src/ONYXKEYS';
+import {RequestType} from '@src/types/onyx/Request';
+import type Response from '@src/types/onyx/Response';
 import * as ApiUtils from './ApiUtils';
 import HttpsError from './Errors/HttpsError';
 
 let shouldFailAllRequests = false;
 let shouldForceOffline = false;
+
 Onyx.connect({
     key: ONYXKEYS.NETWORK,
     callback: (network) => {
@@ -25,14 +28,8 @@ let cancellationController = new AbortController();
 /**
  * Send an HTTP request, and attempt to resolve the json response.
  * If there is a network error, we'll set the application offline.
- *
- * @param {String} url
- * @param {String} [method]
- * @param {Object} [body]
- * @param {Boolean} [canCancel]
- * @returns {Promise}
  */
-function processHTTPRequest(url, method = 'get', body = null, canCancel = true) {
+function processHTTPRequest(url: string, method: RequestType = 'get', body: FormData | null = null, canCancel = true): Promise<Response> {
     return fetch(url, {
         // We hook requests to the same Controller signal, so we can cancel them all at once
         signal: canCancel ? cancellationController.signal : undefined,
@@ -49,40 +46,41 @@ function processHTTPRequest(url, method = 'get', body = null, canCancel = true)
 
             if (!response.ok) {
                 // Expensify site is down or there was an internal server error, or something temporary like a Bad Gateway, or unknown error occurred
-                const serviceInterruptedStatuses = [
+                const serviceInterruptedStatuses: Array<ValueOf<typeof CONST.HTTP_STATUS>> = [
                     CONST.HTTP_STATUS.INTERNAL_SERVER_ERROR,
                     CONST.HTTP_STATUS.BAD_GATEWAY,
                     CONST.HTTP_STATUS.GATEWAY_TIMEOUT,
                     CONST.HTTP_STATUS.UNKNOWN_ERROR,
                 ];
-                if (_.contains(serviceInterruptedStatuses, response.status)) {
+                if (serviceInterruptedStatuses.indexOf(response.status as ValueOf<typeof CONST.HTTP_STATUS>) > -1) {
                     throw new HttpsError({
                         message: CONST.ERROR.EXPENSIFY_SERVICE_INTERRUPTED,
-                        status: response.status,
+                        status: response.status.toString(),
                         title: 'Issue connecting to Expensify site',
                     });
-                } else if (response.status === CONST.HTTP_STATUS.TOO_MANY_REQUESTS) {
+                }
+                if (response.status === CONST.HTTP_STATUS.TOO_MANY_REQUESTS) {
                     throw new HttpsError({
                         message: CONST.ERROR.THROTTLED,
-                        status: response.status,
+                        status: response.status.toString(),
                         title: 'API request throttled',
                     });
                 }
 
                 throw new HttpsError({
                     message: response.statusText,
-                    status: response.status,
+                    status: response.status.toString(),
                 });
             }
 
-            return response.json();
+            return response.json() as Promise<Response>;
         })
         .then((response) => {
             // Some retried requests will result in a "Unique Constraints Violation" error from the server, which just means the record already exists
             if (response.jsonCode === CONST.JSON_CODE.BAD_REQUEST && response.message === CONST.ERROR_TITLE.DUPLICATE_RECORD) {
                 throw new HttpsError({
                     message: CONST.ERROR.DUPLICATE_RECORD,
-                    status: CONST.JSON_CODE.BAD_REQUEST,
+                    status: CONST.JSON_CODE.BAD_REQUEST.toString(),
                     title: CONST.ERROR_TITLE.DUPLICATE_RECORD,
                 });
             }
@@ -91,43 +89,42 @@ function processHTTPRequest(url, method = 'get', body = null, canCancel = true)
             if (response.jsonCode === CONST.JSON_CODE.EXP_ERROR && response.title === CONST.ERROR_TITLE.SOCKET && response.type === CONST.ERROR_TYPE.SOCKET) {
                 throw new HttpsError({
                     message: CONST.ERROR.EXPENSIFY_SERVICE_INTERRUPTED,
-                    status: CONST.JSON_CODE.EXP_ERROR,
+                    status: CONST.JSON_CODE.EXP_ERROR.toString(),
                     title: CONST.ERROR_TITLE.SOCKET,
                 });
             }
             if (response.jsonCode === CONST.JSON_CODE.MANY_WRITES_ERROR) {
-                const {phpCommandName, authWriteCommands} = response.data;
-                // eslint-disable-next-line max-len
-                const message = `The API call (${phpCommandName}) did more Auth write requests than allowed. Count ${authWriteCommands.length}, commands: ${authWriteCommands.join(
-                    ', ',
-                )}. Check the APIWriteCommands class in Web-Expensify`;
-                alert('Too many auth writes', message);
+                if (response.data) {
+                    const {phpCommandName, authWriteCommands} = response.data;
+                    // eslint-disable-next-line max-len
+                    const message = `The API call (${phpCommandName}) did more Auth write requests than allowed. Count ${authWriteCommands.length}, commands: ${authWriteCommands.join(
+                        ', ',
+                    )}. Check the APIWriteCommands class in Web-Expensify`;
+                    alert('Too many auth writes', message);
+                }
             }
-            return response;
+            return response as Promise<Response>;
         });
 }
 
 /**
  * Makes XHR request
- * @param {String} command the name of the API command
- * @param {Object} data parameters for the API command
- * @param {String} type HTTP request type (get/post)
- * @param {Boolean} shouldUseSecure should we use the secure server
- * @returns {Promise}
+ * @param command the name of the API command
+ * @param data parameters for the API command
+ * @param type HTTP request type (get/post)
+ * @param shouldUseSecure should we use the secure server
  */
-function xhr(command, data, type = CONST.NETWORK.METHOD.POST, shouldUseSecure = false) {
+function xhr(command: string, data: Record<string, unknown>, type: RequestType = CONST.NETWORK.METHOD.POST, shouldUseSecure = false): Promise<Response> {
     const formData = new FormData();
-    _.each(data, (val, key) => {
-        // Do not send undefined request parameters to our API. They will be processed as strings of 'undefined'.
-        if (_.isUndefined(val)) {
+    Object.keys(data).forEach((key) => {
+        if (typeof data[key] === 'undefined') {
             return;
         }
-
-        formData.append(key, val);
+        formData.append(key, data[key] as string | Blob);
     });
 
     const url = ApiUtils.getCommandURL({shouldUseSecure, command});
-    return processHTTPRequest(url, type, formData, data.canCancel);
+    return processHTTPRequest(url, type, formData, Boolean(data.canCancel));
 }
 
 function cancelPendingRequests() {
diff --git a/src/libs/Request.ts b/src/libs/Request.ts
index 335731763ec9..18fadca467ad 100644
--- a/src/libs/Request.ts
+++ b/src/libs/Request.ts
@@ -16,7 +16,7 @@ function makeXHR(request: Request): Promise<Response | void> {
             return new Promise<void>((resolve) => resolve());
         }
 
-        return HttpUtils.xhr(request.command, finalParameters, request.type, request.shouldUseSecure) as Promise<Response>;
+        return HttpUtils.xhr(request.command, finalParameters, request.type, request.shouldUseSecure);
     });
 }
 
diff --git a/src/types/onyx/Request.ts b/src/types/onyx/Request.ts
index c97a5a21f488..746e7f75b3d5 100644
--- a/src/types/onyx/Request.ts
+++ b/src/types/onyx/Request.ts
@@ -7,11 +7,13 @@ type OnyxData = {
     optimisticData?: OnyxUpdate[];
 };
 
+type RequestType = 'get' | 'post';
+
 type RequestData = {
     command: string;
     commandName?: string;
     data?: Record<string, unknown>;
-    type?: string;
+    type?: RequestType;
     shouldUseSecure?: boolean;
     successData?: OnyxUpdate[];
     failureData?: OnyxUpdate[];
@@ -24,4 +26,4 @@ type RequestData = {
 type Request = RequestData & OnyxData;
 
 export default Request;
-export type {OnyxData};
+export type {OnyxData, RequestType};
diff --git a/src/types/onyx/Response.ts b/src/types/onyx/Response.ts
index d36a875ea6de..66d5dcbdfd5b 100644
--- a/src/types/onyx/Response.ts
+++ b/src/types/onyx/Response.ts
@@ -1,5 +1,10 @@
 import {OnyxUpdate} from 'react-native-onyx';
 
+type Data = {
+    phpCommandName: string;
+    authWriteCommands: string[];
+};
+
 type Response = {
     previousUpdateID?: number | string;
     lastUpdateID?: number | string;
@@ -10,6 +15,9 @@ type Response = {
     authToken?: string;
     encryptedAuthToken?: string;
     message?: string;
+    title?: string;
+    data?: Data;
+    type?: string;
     shortLivedAuthToken?: string;
     auth?: string;
     // eslint-disable-next-line @typescript-eslint/naming-convention