> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-rn-guide-message-privately.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Reaction List

> Reaction List — CometChat documentation.

## Overview

The `Reaction List` component provides a comprehensive display of reactions associated with a message, showcasing which reactions were made by individual users. Additionaly, users can interact with the list to remove their own reactions.

<Frame>
  <img src="https://mintcdn.com/cometchat-22654f5b-docs-rn-guide-message-privately/mNTojjz_O28of40c/images/f89282b8-reaction_list_web_screens-b18fe84f0afb8472db5bacec2cb3110a.png?fit=max&auto=format&n=mNTojjz_O28of40c&q=85&s=1a23f8c4240c881189176d6fa1fdda39" width="3600" height="2400" data-path="images/f89282b8-reaction_list_web_screens-b18fe84f0afb8472db5bacec2cb3110a.png" />
</Frame>

## Usage

### Integration

The following code snippet illustrates how you can directly incorporate the Reactions list component into your app.

<Tabs>
  <Tab title="app.module.ts">
    ```ts theme={null}
    import { CUSTOM_ELEMENTS_SCHEMA, NgModule } from "@angular/core";
    import { BrowserModule } from "@angular/platform-browser";
    import { AppComponent } from "./app.component";

    @NgModule({
      imports: [BrowserModule],
      declarations: [AppComponent],
      providers: [],
      bootstrap: [AppComponent],
      schemas: [CUSTOM_ELEMENTS_SCHEMA],
    })
    export class AppModule {}
    ```
  </Tab>

  <Tab title="app.component.ts">
    ```ts theme={null}
    import { CometChat } from '@cometchat/chat-sdk-javascript';
    import { Component, OnInit } from '@angular/core';
    import {  CometChatThemeService, CometChatUIKit } from '@cometchat/chat-uikit-angular';
    import { ReactionListStyle } from '@cometchat/uikit-shared';
    import "@cometchat/uikit-elements";

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {

      constructor(private themeService:CometChatThemeService) {
        themeService.theme.palette.setMode("light")
        themeService.theme.palette.setPrimary({ light: "#6851D6", dark: "#6851D6" })
      }
      public messageObject!: CometChat.TextMessage;
      ngOnInit(): void {
        CometChat.getMessageDetails("messageId").then((message) => {
            this.messageObject = message;
        }).catch((error) => {
          console.error('Error fetching message details:', error);
        });
      }
      reactionListStyle = new ReactionListStyle({
        background:'#9a41fa',
        border:'2px solid #6e2eb3',
        borderRadius:'20px',
        activeEmojiBackground:'#d4b2f7',
        subtitleTextColor:'#f4ebff',
      });

      onLogin(UID?: any) {
        CometChatUIKit.login({ uid: UID }).then(
          (user) => {
            setTimeout(() => {
              window.location.reload();
            }, 1000);
          },
          (error) => {
            console.log("Login failed with exception:", { error });
          }
        );
      }
    }
    ```
  </Tab>

  <Tab title="app.component.html">
    ```html theme={null}
    <div class="fullwidth">
      <cometchat-reaction-list
        *ngIf="messageObject"
        [messageObject]="messageObject"
        [reactionListStyle]="reactionListStyle"
      ></cometchat-reaction-list>
    </div>
    ```
  </Tab>
</Tabs>

***

### Actions

[Actions](/ui-kit/angular/components-overview#actions) dictate how a component functions. They are divided into two types: Predefined and User-defined. You can override either type, allowing you to tailor the behavior of the component to fit your specific needs.

##### 1. reactionItemClicked

The `reactionItemClicked` event gets activated when a user clicks on a reaction item within the CometChat Reaction List component. This event provides a way to capture and respond to user interactions with specific reactions.

<Tabs>
  <Tab title="app.component.ts">
    ```ts theme={null}
    import { CometChat } from '@cometchat/chat-sdk-javascript';
    import { Component, OnInit } from '@angular/core';
    import {  CometChatThemeService, CometChatUIKit } from '@cometchat/chat-uikit-angular';
    import "@cometchat/uikit-elements";

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {

      constructor(private themeService:CometChatThemeService) {
        themeService.theme.palette.setMode("light")
        themeService.theme.palette.setPrimary({ light: "#6851D6", dark: "#6851D6" })
      }
      public messageObject!: CometChat.TextMessage;
      ngOnInit(): void {
        CometChat.getMessageDetails("messageId").then((message) => {
            this.messageObject = message;
        }).catch((error) => {
          console.error('Error fetching message details:', error);
        });
      }
      public handleReactionOnItemClicked = () => {
        console.log("your custom on reaction item click actions");
      }

      onLogin(UID?: any) {
        CometChatUIKit.login({ uid: UID }).then(
          (user) => {
            setTimeout(() => {
              window.location.reload();
            }, 1000);
          },
          (error) => {
            console.log("Login failed with exception:", { error });
          }
        );
      }
    }
    ```
  </Tab>

  <Tab title="app.component.html">
    ```html theme={null}
    <div class="fullwidth">
      <cometchat-reaction-list
        *ngIf="messageObject"
        [messageObject]="messageObject"
        [reactionItemClicked]="handleReactionOnItemClicked"
      ></cometchat-reaction-list>
    </div>
    ```
  </Tab>
</Tabs>

***

### Filters

**Filters** allow you to customize the data displayed in a list within a `Component`. You can filter the list based on your specific criteria, allowing for a more customized. Filters can be applied using `RequestBuilders` of Chat SDK.

You can adjust the `ReactionsRequestBuilder` in the Reaction list Component to customize your Reaction list. Numerous options are available to alter the builder to meet your specific needs. For additional details on `ReactionsRequestBuilder`, please visit [ReactionsRequestBuilder](/sdk/javascript/reactions).

In the example below, we demonstrate the application of a filter to the `reactions list`. This filter allows you to specify a limit of the users who have reacted to the perticular message.

<Frame>
  <img src="https://mintcdn.com/cometchat-22654f5b-docs-rn-guide-message-privately/mNTojjz_O28of40c/images/f2517cdb-reaction_list_filter_web_screens-77f1e42073f88498f5c2b5da3d456694.png?fit=max&auto=format&n=mNTojjz_O28of40c&q=85&s=2701d424d8a58cf83da1381ecfab8ee7" width="3600" height="2400" data-path="images/f2517cdb-reaction_list_filter_web_screens-77f1e42073f88498f5c2b5da3d456694.png" />
</Frame>

<Tabs>
  <Tab title="app.component.ts">
    ```ts theme={null}
    import { CometChat } from '@cometchat/chat-sdk-javascript';
    import { Component, OnInit } from '@angular/core';
    import {  CometChatThemeService, CometChatUIKit } from '@cometchat/chat-uikit-angular';
    import "@cometchat/uikit-elements";

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {

      constructor(private themeService:CometChatThemeService) {
        themeService.theme.palette.setMode("light")
        themeService.theme.palette.setPrimary({ light: "#6851D6", dark: "#6851D6" })
      }
      public messageObject!: CometChat.TextMessage;
      ngOnInit(): void {
        CometChat.getMessageDetails("messageId").then((message) => {
            this.messageObject = message;
        }).catch((error) => {
          console.error('Error fetching message details:', error);
        });
      }
      reactionsRequestBuilder = new CometChat.ReactionsRequestBuilder().setLimit(2);
      onLogin(UID?: any) {
        CometChatUIKit.login({ uid: UID }).then(
          (user) => {
            setTimeout(() => {
              window.location.reload();
            }, 1000);
          },
          (error) => {
            console.log("Login failed with exception:", { error });
          }
        );
      }
    }
    ```
  </Tab>

  <Tab title="app.component.html">
    ```html theme={null}
    <div class="fullwidth">
      <cometchat-reaction-list
        *ngIf="messageObject"
        [messageObject]="messageObject"
        [reactionsRequestBuilder]="reactionsRequestBuilder"
      ></cometchat-reaction-list>
    </div>
    ```
  </Tab>
</Tabs>

### Events

[Events](/ui-kit/angular/components-overview#events) are emitted by a `Component`. By using event you can extend existing functionality. Being global events, they can be applied in Multiple Locations and are capable of being Added or Removed.

The `Reactions list` component does not produce any events.

## Customization

To fit your app's design requirements, you can customize the appearance of the Reaction List component. We provide exposed methods that allow you to modify the experience and behavior according to your specific needs.

### Style

Using Style you can customize the look and feel of the component in your app, These parameters typically control elements such as the color, size, shape, and fonts used within the component.

##### 1. reactionListStyle

To customize the appearance, you can assign a `reactionListStyle` object to the `Reactions List` component.

**Example**

In this example, we are employing the `reactionListStyle`.

<Tabs>
  <Tab title="app.component.ts">
    ```ts theme={null}
    import { CometChat } from '@cometchat/chat-sdk-javascript';
    import { Component, OnInit } from '@angular/core';
    import {  CometChatThemeService, CometChatUIKit } from '@cometchat/chat-uikit-angular';
    import { ReactionListStyle } from '@cometchat/uikit-shared';
    import "@cometchat/uikit-elements";

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {

      constructor(private themeService:CometChatThemeService) {
        themeService.theme.palette.setMode("light")
        themeService.theme.palette.setPrimary({ light: "#6851D6", dark: "#6851D6" })
      }
      public messageObject!: CometChat.TextMessage;
      ngOnInit(): void {
        CometChat.getMessageDetails("messageId").then((message) => {
            this.messageObject = message;
        }).catch((error) => {
          console.error('Error fetching message details:', error);
        });
      }
      reactionListStyle = new ReactionListStyle({
        background:'#9a41fa',
        border:'2px solid #6e2eb3',
        borderRadius:'20px',
        activeEmojiBackground:'#d4b2f7',
        subtitleTextColor:'#f4ebff',
      });

      onLogin(UID?: any) {
        CometChatUIKit.login({ uid: UID }).then(
          (user) => {
            setTimeout(() => {
              window.location.reload();
            }, 1000);
          },
          (error) => {
            console.log("Login failed with exception:", { error });
          }
        );
      }
    }
    ```
  </Tab>

  <Tab title="app.component.html">
    ```html theme={null}
    <div class="fullwidth">
      <cometchat-reaction-list
        *ngIf="messageObject"
        [messageObject]="messageObject"
        [reactionListStyle]="reactionListStyle"
      ></cometchat-reaction-list>
    </div>
    ```
  </Tab>
</Tabs>

***

<Frame>
  <img src="https://mintcdn.com/cometchat-22654f5b-docs-rn-guide-message-privately/NN4EdpOU3viwWMb_/images/082dce46-reaction_list_style_web_screens-af2aa02446b9453e42190c69c58d592a.png?fit=max&auto=format&n=NN4EdpOU3viwWMb_&q=85&s=af8ed9f44452e64303c5a87f58ef9b46" width="3600" height="2400" data-path="images/082dce46-reaction_list_style_web_screens-af2aa02446b9453e42190c69c58d592a.png" />
</Frame>

List of properties exposed by ReactionsListStyle

| Property                  | Description                                     | Code                              |
| ------------------------- | ----------------------------------------------- | --------------------------------- |
| **border**                | Used to set border                              | `border?: string,`                |
| **borderRadius**          | Used to set border radius                       | `borderRadius?: string;`          |
| **background**            | Used to set background colour                   | `background?: string;`            |
| **height**                | Used to set height                              | `height?: string;`                |
| **width**                 | Used to set width                               | `width?: string;`                 |
| **sliderEmojiFont**       | used to set the font of slider emoji            | `sliderEmojiFont?: string;`       |
| **sliderEmojiCountFont**  | used to set the font of the slider emoji count  | `sliderEmojiCountFont?: string;`  |
| **sliderEmojiCountColor** | used to set the color of the slider emoji count | `sliderEmojiCountColor?: string;` |
| **activeEmojiBackground** | used to set the active emoji background         | `activeEmojiBackground?: string;` |
| **loadingIconTint**       | used to set the loading icon color              | `loadingIconTint?: string;`       |
| **errorIconTint**         | used to set the error icon color                | `errorIconTint?: string;`         |
| **tailViewFont**          | used to set the tail view font                  | `tailViewFont?: string;`          |
| **subtitleTextFont**      | used to set the subtitle text font              | `subtitleTextFont?: string;`      |
| **subtitleTextColor**     | used to set the subtitle text color             | `subtitleTextColor?: string;`     |
| **dividerTint**           | used to set the divider color                   | `dividerTint?: string;`           |

***

##### 2. Avatar Style

If you want to apply customized styles to the `Avatar` component within the `Reaction List` Component, you can use the following code snippet. For more information you can refer [Avatar Styles](/ui-kit/angular/avatar#avatar-style).

<Tabs>
  <Tab title="app.component.ts">
    ```ts theme={null}
    import { CometChat } from '@cometchat/chat-sdk-javascript';
    import { Component, OnInit } from '@angular/core';
    import {  CometChatThemeService, CometChatUIKit, AvatarStyle } from '@cometchat/chat-uikit-angular';
    import "@cometchat/uikit-elements";

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {

      constructor(private themeService:CometChatThemeService) {
        themeService.theme.palette.setMode("light")
        themeService.theme.palette.setPrimary({ light: "#6851D6", dark: "#6851D6" })
      }
      public messageObject!: CometChat.TextMessage;
      ngOnInit(): void {
        CometChat.getMessageDetails("messageId").then((message) => {
            this.messageObject = message;
        }).catch((error) => {
          console.error('Error fetching message details:', error);
        });
      }
       avatarStyle = new AvatarStyle({
        backgroundColor: "#cdc2ff",
        border: "2px solid #6745ff",
        borderRadius: "10px",
        outerViewBorderColor: "#ca45ff",
        outerViewBorderRadius: "5px",
        nameTextColor: "#4554ff"
      });

      onLogin(UID?: any) {
        CometChatUIKit.login({ uid: UID }).then(
          (user) => {
            setTimeout(() => {
              window.location.reload();
            }, 1000);
          },
          (error) => {
            console.log("Login failed with exception:", { error });
          }
        );
      }
    }
    ```
  </Tab>

  <Tab title="app.component.html">
    ```html theme={null}
    <div class="fullwidth">
      <cometchat-reaction-list
        *ngIf="messageObject"
        [messageObject]="messageObject"
        [avatarStyle]="avatarStyle"
      ></cometchat-reaction-list>
    </div>
    ```
  </Tab>
</Tabs>

##### 3. ListItem Style

If you want to apply customized styles to the `List Item` component within the `Reaction List` Component, you can use the following code snippet. For more information, you can refer [ListItem Styles](/ui-kit/angular/list-item#listitemstyle).

<Tabs>
  <Tab title="app.component.ts">
    ```ts theme={null}
    import { CometChat } from '@cometchat/chat-sdk-javascript';
    import { Component, OnInit } from '@angular/core';
    import {  CometChatThemeService, CometChatUIKit, ListItemStyle } from '@cometchat/chat-uikit-angular';
    import "@cometchat/uikit-elements";

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {

      constructor(private themeService:CometChatThemeService) {
        themeService.theme.palette.setMode("light")
        themeService.theme.palette.setPrimary({ light: "#6851D6", dark: "#6851D6" })
      }
      public messageObject!: CometChat.TextMessage;
      ngOnInit(): void {
        CometChat.getMessageDetails("messageId").then((message) => {
            this.messageObject = message;
        }).catch((error) => {
          console.error('Error fetching message details:', error);
        });
      }
       listItemStyle: ListItemStyle = new ListItemStyle({
        background: "transparent",
        padding: "5px",
        border: "1px solid #e9b8f5",
        titleColor: "#8830f2",
        borderRadius: "20px",
        width: "100% !important"
      });

      onLogin(UID?: any) {
        CometChatUIKit.login({ uid: UID }).then(
          (user) => {
            setTimeout(() => {
              window.location.reload();
            }, 1000);
          },
          (error) => {
            console.log("Login failed with exception:", { error });
          }
        );
      }
    }
    ```
  </Tab>

  <Tab title="app.component.html">
    ```html theme={null}
    <div class="fullwidth">
      <cometchat-reaction-list
        *ngIf="messageObject"
        [messageObject]="messageObject"
        [listitemstyle]="listItemStyle"
      ></cometchat-reaction-list>
    </div>
    ```
  </Tab>
</Tabs>

***

### Functionality

These are a set of small functional customizations that allow you to fine-tune the overall experience of the component. With these, you can change text, set custom icons, and toggle the visibility of UI elements.

<Tabs>
  <Tab title="app.component.ts">
    ```ts theme={null}
    import { CometChat } from '@cometchat/chat-sdk-javascript';
    import { Component, OnInit } from '@angular/core';
    import {  CometChatThemeService, CometChatUIKit } from '@cometchat/chat-uikit-angular';
    import "@cometchat/uikit-elements";

    @Component({
      selector: 'app-root',
      templateUrl: './app.component.html',
      styleUrls: ['./app.component.css']
    })
    export class AppComponent {

      constructor(private themeService:CometChatThemeService) {
        themeService.theme.palette.setMode("light")
        themeService.theme.palette.setPrimary({ light: "#6851D6", dark: "#6851D6" })
      }
      public messageObject!: CometChat.TextMessage;
      ngOnInit(): void {
        CometChat.getMessageDetails("messageId").then((message) => {
            this.messageObject = message;
        }).catch((error) => {
          console.error('Error fetching message details:', error);
        });
      }

      onLogin(UID?: any) {
        CometChatUIKit.login({ uid: UID }).then(
          (user) => {
            setTimeout(() => {
              window.location.reload();
            }, 1000);
          },
          (error) => {
            console.log("Login failed with exception:", { error });
          }
        );
      }
    }
    ```
  </Tab>

  <Tab title="app.component.html">
    ```html theme={null}
    <div class="fullwidth">
      <cometchat-reaction-list
        *ngIf="messageObject"
        [messageObject]="messageObject"
        [loadingIconURL]="your custom icon"
        [errorIconURL]="your custom icon"
      ></cometchat-reaction-list>
    </div>
    ```
  </Tab>
</Tabs>

***

Below is a customizations list along with corresponding code snippets

| Property           | Description                         | Code                                              |
| ------------------ | ----------------------------------- | ------------------------------------------------- |
| **loadingIconURL** | used to set the custom loading icon | `loadingIconURL="'your custom loading icon url'"` |
| **errorIconURL**   | used to set the error icon          | `errorIconURL="'your custom error icon url'"`     |