diff --git a/tools/test-js-with-node b/tools/test-js-with-node
index 4d4eeb4a3e..4e2355eaab 100755
--- a/tools/test-js-with-node
+++ b/tools/test-js-with-node
@@ -118,7 +118,7 @@ EXEMPT_FILES = make_set(
         "web/src/inbox_ui.js",
         "web/src/inbox_util.ts",
         "web/src/info_overlay.js",
-        "web/src/integration_url_modal.js",
+        "web/src/integration_url_modal.ts",
         "web/src/invite.ts",
         "web/src/left_sidebar_navigation_area.ts",
         "web/src/left_sidebar_navigation_area_popovers.js",
diff --git a/web/src/dropdown_widget.ts b/web/src/dropdown_widget.ts
index ee076128c1..83b8bb1f4b 100644
--- a/web/src/dropdown_widget.ts
+++ b/web/src/dropdown_widget.ts
@@ -27,7 +27,7 @@ export enum DataTypes {
     STRING = "string",
 }
 
-type Option = {
+export type Option = {
     unique_id: number | string;
     name: string;
     is_setting_disabled?: boolean;
diff --git a/web/src/integration_url_modal.js b/web/src/integration_url_modal.ts
similarity index 83%
rename from web/src/integration_url_modal.js
rename to web/src/integration_url_modal.ts
index 891bb5d4d1..137cbb92bc 100644
--- a/web/src/integration_url_modal.js
+++ b/web/src/integration_url_modal.ts
@@ -1,17 +1,19 @@
 import ClipboardJS from "clipboard";
 import $ from "jquery";
+import type {Instance} from "tippy.js";
 
 import render_generate_integration_url_modal from "../templates/settings/generate_integration_url_modal.hbs";
 
 import {show_copied_confirmation} from "./copied_tooltip";
 import * as dialog_widget from "./dialog_widget";
 import * as dropdown_widget from "./dropdown_widget";
+import type {DropdownWidget, Option} from "./dropdown_widget";
 import {$t_html} from "./i18n";
 import {realm} from "./state_data";
 import * as stream_data from "./stream_data";
 import * as util from "./util";
 
-export function show_generate_integration_url_modal(api_key) {
+export function show_generate_integration_url_modal(api_key: string): void {
     const default_url_message = $t_html({defaultMessage: "Integration URL will appear here."});
     const streams = stream_data.subscribed_subs();
     const default_integration_option = {
@@ -28,24 +30,25 @@ export function show_generate_integration_url_modal(api_key) {
         max_topic_length: realm.max_topic_length,
     });
 
-    function generate_integration_url_post_render() {
+    function generate_integration_url_post_render(): void {
         let selected_integration = "";
-        let stream_input_dropdown_widget;
-        let integration_input_dropdown_widget;
+        let stream_input_dropdown_widget: DropdownWidget;
+        let integration_input_dropdown_widget: DropdownWidget;
 
         const $override_topic = $("#integration-url-override-topic");
-        const $topic_input = $("#integration-url-topic-input");
+        const $topic_input = $<HTMLInputElement>("#integration-url-topic-input");
         const $integration_url = $("#generate-integration-url-modal .integration-url");
         const $dialog_submit_button = $("#generate-integration-url-modal .dialog_submit_button");
 
         $dialog_submit_button.prop("disabled", true);
 
-        new ClipboardJS("#generate-integration-url-modal .dialog_submit_button", {
+        const clipboard = new ClipboardJS("#generate-integration-url-modal .dialog_submit_button", {
             text() {
                 return $integration_url.text();
             },
-        }).on("success", (e) => {
-            show_copied_confirmation(e.trigger);
+        });
+        clipboard.on("success", () => {
+            show_copied_confirmation($("#generate-integration-url-modal .dialog_submit_button")[0]);
         });
 
         $override_topic.on("change", function () {
@@ -57,8 +60,8 @@ export function show_generate_integration_url_modal(api_key) {
             update_url();
         });
 
-        function update_url() {
-            selected_integration = integration_input_dropdown_widget.value();
+        function update_url(): void {
+            selected_integration = integration_input_dropdown_widget.value()!.toString();
             if (selected_integration === default_integration_option.unique_id) {
                 $integration_url.text(default_url_message);
                 $dialog_submit_button.prop("disabled", true);
@@ -66,11 +69,11 @@ export function show_generate_integration_url_modal(api_key) {
             }
 
             const stream_id = stream_input_dropdown_widget.value();
-            const topic_name = $topic_input.val();
+            const topic_name = $topic_input.val()!;
 
             const params = new URLSearchParams({api_key});
             if (stream_id !== -1) {
-                params.set("stream", stream_id);
+                params.set("stream", stream_id!.toString());
                 if (topic_name !== "") {
                     params.set("topic", topic_name);
                 }
@@ -78,7 +81,7 @@ export function show_generate_integration_url_modal(api_key) {
 
             const realm_url = realm.realm_uri;
             const base_url = `${realm_url}/api/v1/external/`;
-            $integration_url.text(`${base_url}${selected_integration}?${params}`);
+            $integration_url.text(`${base_url}${selected_integration}?${params.toString()}`);
             $dialog_submit_button.prop("disabled", false);
 
             if ($override_topic.prop("checked") && topic_name === "") {
@@ -99,7 +102,7 @@ export function show_generate_integration_url_modal(api_key) {
         });
         integration_input_dropdown_widget.setup();
 
-        function get_options_for_integration_input_dropdown_widget() {
+        function get_options_for_integration_input_dropdown_widget(): Option[] {
             const options = [
                 default_integration_option,
                 ...realm.realm_incoming_webhook_bots
@@ -112,7 +115,10 @@ export function show_generate_integration_url_modal(api_key) {
             return options;
         }
 
-        function integration_item_click_callback(event, dropdown) {
+        function integration_item_click_callback(
+            event: JQuery.ClickEvent,
+            dropdown: Instance,
+        ): void {
             integration_input_dropdown_widget.render();
             $(".integration-url-name-wrapper").trigger("input");
 
@@ -134,7 +140,7 @@ export function show_generate_integration_url_modal(api_key) {
         });
         stream_input_dropdown_widget.setup();
 
-        function get_options_for_stream_dropdown_widget() {
+        function get_options_for_stream_dropdown_widget(): Option[] {
             const options = [
                 direct_messages_option,
                 ...streams
@@ -148,7 +154,7 @@ export function show_generate_integration_url_modal(api_key) {
             return options;
         }
 
-        function stream_item_click_callback(event, dropdown) {
+        function stream_item_click_callback(event: JQuery.ClickEvent, dropdown: Instance): void {
             stream_input_dropdown_widget.render();
             $(".integration-url-stream-wrapper").trigger("input");
             const user_selected_option = stream_input_dropdown_widget.value();
@@ -174,7 +180,9 @@ export function show_generate_integration_url_modal(api_key) {
         id: "generate-integration-url-modal",
         html_submit_button: $t_html({defaultMessage: "Copy URL"}),
         html_exit_button: $t_html({defaultMessage: "Close"}),
-        on_click() {},
+        on_click() {
+            return;
+        },
         post_render: generate_integration_url_post_render,
     });
 }
diff --git a/web/src/state_data.ts b/web/src/state_data.ts
index de35d45f85..7bb697c952 100644
--- a/web/src/state_data.ts
+++ b/web/src/state_data.ts
@@ -105,6 +105,7 @@ export const realm_schema = z.object({
     max_avatar_file_size_mib: z.number(),
     max_icon_file_size_mib: z.number(),
     max_logo_file_size_mib: z.number(),
+    max_topic_length: z.number(),
     realm_add_custom_emoji_policy: z.number(),
     realm_allow_edit_history: z.boolean(),
     realm_available_video_chat_providers: z.object({
@@ -134,6 +135,14 @@ export const realm_schema = z.object({
     realm_enable_spectator_access: z.boolean(),
     realm_icon_source: z.string(),
     realm_icon_url: z.string(),
+    realm_incoming_webhook_bots: z.array(
+        z.object({
+            display_name: z.string(),
+            name: z.string(),
+            all_event_types: z.nullable(z.array(z.string())),
+            // We currently ignore the `config` field in these objects.
+        }),
+    ),
     realm_invite_to_realm_policy: z.number(),
     realm_invite_to_stream_policy: z.number(),
     realm_is_zephyr_mirror_realm: z.boolean(),