diff --git a/webapp/channels/src/components/interactive_dialog/interactive_dialog.test.jsx b/webapp/channels/src/components/interactive_dialog/interactive_dialog.test.tsx
similarity index 74%
rename from webapp/channels/src/components/interactive_dialog/interactive_dialog.test.jsx
rename to webapp/channels/src/components/interactive_dialog/interactive_dialog.test.tsx
index 1ded497382..674c764393 100644
--- a/webapp/channels/src/components/interactive_dialog/interactive_dialog.test.jsx
+++ b/webapp/channels/src/components/interactive_dialog/interactive_dialog.test.tsx
@@ -6,14 +6,21 @@ import React from 'react';
 import {Modal} from 'react-bootstrap';
 import {Provider} from 'react-redux';
 
+import type {DialogElement as TDialogElement} from '@mattermost/types/integrations';
+
 import {mountWithIntl} from 'tests/helpers/intl-test-helper';
 import mockStore from 'tests/test_store';
 import EmojiMap from 'utils/emoji_map';
 
-import InteractiveDialog from './interactive_dialog.jsx';
+import type {Props} from './interactive_dialog';
+import InteractiveDialog from './interactive_dialog';
+
+const submitEvent = {
+    preventDefault: jest.fn(),
+} as unknown as React.FormEvent<HTMLFormElement>;
 
 describe('components/interactive_dialog/InteractiveDialog', () => {
-    const baseProps = {
+    const baseProps: Props = {
         url: 'http://example.com',
         callbackId: 'abc',
         elements: [],
@@ -22,9 +29,9 @@ describe('components/interactive_dialog/InteractiveDialog', () => {
         submitLabel: 'Yes',
         notifyOnCancel: true,
         state: 'some state',
-        onExited: () => {},
+        onExited: jest.fn(),
         actions: {
-            submitInteractiveDialog: () => ({}),
+            submitInteractiveDialog: jest.fn(),
         },
         emojiMap: new EmojiMap(new Map()),
     };
@@ -34,14 +41,12 @@ describe('components/interactive_dialog/InteractiveDialog', () => {
             const props = {
                 ...baseProps,
                 actions: {
-                    submitInteractiveDialog: () => ({
-                        data: {error: 'This is an error.'},
-                    }),
+                    submitInteractiveDialog: jest.fn().mockResolvedValue({data: {error: 'This is an error.'}}),
                 },
             };
-            const wrapper = shallow(<InteractiveDialog {...props}/>);
+            const wrapper = shallow<InteractiveDialog>(<InteractiveDialog {...props}/>);
 
-            await wrapper.instance().handleSubmit({preventDefault: jest.fn()});
+            await wrapper.instance().handleSubmit(submitEvent);
 
             const expected = (
                 <div className='error-text'>
@@ -52,8 +57,8 @@ describe('components/interactive_dialog/InteractiveDialog', () => {
         });
 
         test('should not appear when submit does not return an error', async () => {
-            const wrapper = shallow(<InteractiveDialog {...baseProps}/>);
-            await wrapper.instance().handleSubmit({preventDefault: jest.fn()});
+            const wrapper = shallow<InteractiveDialog>(<InteractiveDialog {...baseProps}/>);
+            await wrapper.instance().handleSubmit(submitEvent);
 
             expect(wrapper.find(Modal.Footer).exists('.error-text')).toBe(false);
         });
@@ -61,7 +66,7 @@ describe('components/interactive_dialog/InteractiveDialog', () => {
 
     describe('default select element in Interactive Dialog', () => {
         test('should be enabled by default', () => {
-            const selectElement = {
+            const selectElement: TDialogElement = {
                 data_source: '',
                 default: 'opt3',
                 display_name: 'Option Selector',
@@ -73,10 +78,15 @@ describe('components/interactive_dialog/InteractiveDialog', () => {
                     {text: 'Option3', value: 'opt3'},
                 ],
                 type: 'select',
+                subtype: '',
+                placeholder: '',
+                help_text: '',
+                min_length: 0,
+                max_length: 0,
             };
 
             const {elements, ...rest} = baseProps;
-            elements.push(selectElement);
+            elements?.push(selectElement);
             const props = {
                 ...rest,
                 elements,
@@ -93,19 +103,25 @@ describe('components/interactive_dialog/InteractiveDialog', () => {
     });
 
     describe('bool element in Interactive Dialog', () => {
-        const element = {
+        const element: TDialogElement = {
             data_source: '',
             display_name: 'Boolean Selector',
             name: 'somebool',
             optional: false,
             type: 'bool',
             placeholder: 'Subscribe?',
+            subtype: '',
+            default: '',
+            help_text: '',
+            min_length: 0,
+            max_length: 0,
+            options: [],
         };
         const {elements, ...rest} = baseProps;
         const props = {
             ...rest,
             elements: [
-                ...elements,
+                ...elements || [],
                 element,
             ],
         };
@@ -122,9 +138,9 @@ describe('components/interactive_dialog/InteractiveDialog', () => {
 
         testCases.forEach((testCase) => test(`should interpret ${testCase.description}`, () => {
             if (testCase.default === undefined) {
-                delete element.default;
+                delete (element as any).default;
             } else {
-                element.default = testCase.default;
+                (element as any).default = testCase.default;
             }
 
             const store = mockStore({});
diff --git a/webapp/channels/src/components/interactive_dialog/interactive_dialog.jsx b/webapp/channels/src/components/interactive_dialog/interactive_dialog.tsx
similarity index 80%
rename from webapp/channels/src/components/interactive_dialog/interactive_dialog.jsx
rename to webapp/channels/src/components/interactive_dialog/interactive_dialog.tsx
index ee90f9c409..01018edd7e 100644
--- a/webapp/channels/src/components/interactive_dialog/interactive_dialog.jsx
+++ b/webapp/channels/src/components/interactive_dialog/interactive_dialog.tsx
@@ -1,11 +1,13 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
-import PropTypes from 'prop-types';
 import React from 'react';
 import {Modal} from 'react-bootstrap';
 import {FormattedMessage} from 'react-intl';
 
+import type {DialogSubmission, DialogElement as TDialogElement} from '@mattermost/types/integrations';
+
+import type {ActionFunc} from 'mattermost-redux/types/actions';
 import {
     checkDialogElementForError,
     checkIfErrorsMatchElements,
@@ -13,41 +15,48 @@ import {
 
 import SpinnerButton from 'components/spinner_button';
 
+import type EmojiMap from 'utils/emoji_map';
 import {localizeMessage} from 'utils/utils';
 
 import DialogElement from './dialog_element';
 import DialogIntroductionText from './dialog_introduction_text';
 
-export default class InteractiveDialog extends React.PureComponent {
-    static propTypes = {
-        url: PropTypes.string.isRequired,
-        callbackId: PropTypes.string,
-        elements: PropTypes.arrayOf(PropTypes.object),
-        title: PropTypes.string.isRequired,
-        introductionText: PropTypes.string,
-        iconUrl: PropTypes.string,
-        submitLabel: PropTypes.string,
-        notifyOnCancel: PropTypes.bool,
-        state: PropTypes.string,
-        onExited: PropTypes.func,
-        actions: PropTypes.shape({
-            submitInteractiveDialog: PropTypes.func.isRequired,
-        }).isRequired,
-        emojiMap: PropTypes.object.isRequired,
+export type Props = {
+    url: string;
+    callbackId?: string;
+    elements?: TDialogElement[];
+    title: string;
+    introductionText?: string;
+    iconUrl?: string;
+    submitLabel?: string;
+    notifyOnCancel?: boolean;
+    state?: string;
+    onExited?: () => void;
+    actions: {
+        submitInteractiveDialog: (submission: DialogSubmission) => ActionFunc;
     };
+    emojiMap: EmojiMap;
+}
 
-    constructor(props) {
+type State = {
+    show: boolean;
+    values: Record<string, string | number | boolean>;
+    error: string | null;
+    errors: Record<string, JSX.Element>;
+    submitting: boolean;
+}
+
+export default class InteractiveDialog extends React.PureComponent<Props, State> {
+    constructor(props: Props) {
         super(props);
 
-        const values = {};
+        const values: Record<string, string | number | boolean> = {};
         if (props.elements != null) {
             props.elements.forEach((e) => {
                 if (e.type === 'bool') {
-                    values[e.name] =
-                        e.default === true ||
-                        String(e.default).toLowerCase() === 'true';
+                    values[e.name] = String(e.default).toLowerCase() === 'true';
                 } else {
-                    values[e.name] = e.default || null;
+                    values[e.name] = e.default ?? null;
                 }
             });
         }
@@ -61,12 +70,13 @@ export default class InteractiveDialog extends React.PureComponent {
         };
     }
 
-    handleSubmit = async (e) => {
+    handleSubmit = async (e: React.FormEvent<HTMLFormElement>) => {
         e.preventDefault();
 
         const {elements} = this.props;
         const values = this.state.values;
-        const errors = {};
+        const errors: Record<string, JSX.Element> = {};
+
         if (elements) {
             elements.forEach((elem) => {
                 const error = checkDialogElementForError(
@@ -93,18 +103,20 @@ export default class InteractiveDialog extends React.PureComponent {
 
         const {url, callbackId, state} = this.props;
 
-        const dialog = {
+        const dialog: DialogSubmission = {
             url,
-            callback_id: callbackId,
-            state,
-            submission: values,
+            callback_id: callbackId ?? '',
+            state: state ?? '',
+            submission: values as { [x: string]: string },
+            user_id: '',
+            channel_id: '',
+            team_id: '',
+            cancelled: false,
         };
 
         this.setState({submitting: true});
 
-        const {data} = await this.props.actions.submitInteractiveDialog(
-            dialog,
-        );
+        const {data}: any = await this.props.actions.submitInteractiveDialog(dialog) ?? {};
 
         this.setState({submitting: false});
 
@@ -139,11 +151,15 @@ export default class InteractiveDialog extends React.PureComponent {
         const {url, callbackId, state, notifyOnCancel} = this.props;
 
         if (!submitted && notifyOnCancel) {
-            const dialog = {
+            const dialog: DialogSubmission = {
                 url,
-                callback_id: callbackId,
-                state,
+                callback_id: callbackId ?? '',
+                state: state ?? '',
                 cancelled: true,
+                user_id: '',
+                channel_id: '',
+                team_id: '',
+                submission: {},
             };
 
             this.props.actions.submitInteractiveDialog(dialog);
@@ -152,7 +168,7 @@ export default class InteractiveDialog extends React.PureComponent {
         this.setState({show: false});
     };
 
-    onChange = (name, value) => {
+    onChange = (name: string, value: string) => {
         const values = {...this.state.values, [name]: value};
         this.setState({values});
     };
@@ -166,12 +182,13 @@ export default class InteractiveDialog extends React.PureComponent {
             elements,
         } = this.props;
 
-        let submitText = (
+        let submitText: JSX.Element | string = (
             <FormattedMessage
                 id='interactive_dialog.submit'
                 defaultMessage='Submit'
             />
         );
+
         if (submitLabel) {
             submitText = submitLabel;
         }
@@ -207,7 +224,7 @@ export default class InteractiveDialog extends React.PureComponent {
                 >
                     <Modal.Header
                         closeButton={true}
-                        style={{borderBottom: elements == null && '0px'}}
+                        style={{borderBottom: elements == null ? '0px' : undefined}}
                     >
                         <Modal.Title
                             componentClass='h1'
@@ -239,7 +256,6 @@ export default class InteractiveDialog extends React.PureComponent {
                                         helpText={e.help_text}
                                         errorText={this.state.errors[e.name]}
                                         placeholder={e.placeholder}
-                                        minLength={e.min_length}
                                         maxLength={e.max_length}
                                         dataSource={e.data_source}
                                         optional={e.optional}