Creating a Next.js Application Using Syncfusion® React Components

17 Mar 20259 minutes to read

This section provides a step-by-step guide for setting up a Next.js application and integrating the Syncfusion® React Diagram component.

What is Next.js?

Next.js is a React framework that makes it easy to build fast, SEO-friendly, and user-friendly web applications. It provides features such as server-side rendering, automatic code splitting, routing, and API routes, making it an excellent choice for building modern web applications.

Prerequisites

Before getting started with the Next.js application, ensure the following prerequisites are met:

  • Node.js 16.8 or later.

  • The application is compatible with macOS, Windows, and Linux operating systems.

Create a Next.js application

To create a new Next.js application, use one of the commands that are specific to either NPM or Yarn.

npx create-next-app@latest
yarn create next-app

Using one of the above commands will lead you to set up additional configurations for the project as below:

1.Define the project name: Users can specify the name of the project directly. Let’s specify the name of the project as ej2-nextjs-diagram.

√ What is your project named? » ej2-nextjs-diagram

2.Select the required packages.

√ What is your project named? ... ej2-nextjs-diagram
√ Would you like to use TypeScript? ... No / `Yes`
√ Would you like to use ESLint? ... No / `Yes`
√ Would you like to use Tailwind CSS? ... `No` / Yes
√ Would you like to use `src/` directory? ... No / `Yes`
√ Would you like to use App Router? (recommended) ... No / `Yes`
√ Would you like to customize the default import alias? ... `No`/ Yes
Creating a new Next.js app in D:\ej2-nextjs-diagram.

3.Once complete the above mentioned steps to create ej2-nextjs-diagram, navigate to the directory using the below command:

cd ej2-nextjs-diagram

The application is ready to run with default settings. Now, let’s add Syncfusion® components to the project.

Install Syncfusion® React packages

Syncfusion® React component packages are available at npmjs.com. To use Syncfusion® React components in the project, install the corresponding npm package.

Here, the React Diagram component is used in the project. To install the React Diagram component, use the following command:

npm install @syncfusion/ej2-react-diagrams --save
yarn add @syncfusion/ej2-react-diagrams

Import Syncfusion® CSS styles

Syncfusion® React components come with built-in themes, which are available in the installed packages. It’s easy to adapt the Syncfusion® React components to match the style of your application by referring to one of the built-in themes.

Import the Material theme into the src/app/globals.css file and removed the existing styles in that file, as shown below:

@import "../../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-popups/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-splitbuttons/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-navigations/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-react-diagrams/styles/material.css";

To know more about built-in themes and CSS reference for individual components, refer to the themes section.

Add Syncfusion® React component

Follow the below steps to add the React Diagram component to the Next.js project:

1.Before adding the Diagram component to your markup, create a datasource.tsx file within the src/app/ folder and add the Diagram component data.

export let data: object[] = [{
    'Id': 'parent',
    'Name': 'Maria Anders',
    'Designation': 'Managing Director',
    'IsExpand': 'true',
    'RatingColor': '#C34444'
},
{
    'Id': 1,
    'Name': 'Ana Trujillo',
    'Designation': 'Project Manager',
    'IsExpand': 'false',
    'RatingColor': '#68C2DE',
    'ReportingPerson': 'parent'
},
{
    'Id': 2,
    'Name': 'Anto Moreno',
    'Designation': 'Project Lead',
    'IsExpand': 'false',
    'RatingColor': '#93B85A',
    'ReportingPerson': 'parent'
},
{
    'Id': 3,
    'Name': 'Thomas Hardy',
    'Designation': 'Senior S/w Engg',
    'IsExpand': 'false',
    'RatingColor': '#68C2DE',
    'ReportingPerson': 1
},
{
    'Id': 4,
    'Name': 'Christina kaff',
    'Designation': 'S/w Engg',
    'IsExpand': 'false',
    'RatingColor': '#93B85A',
    'ReportingPerson': 2
},
{
    'Id': 5,
    'Name': 'Hanna Moos',
    'Designation': 'Project Trainee',
    'IsExpand': 'true',
    'RatingColor': '#D46E89',
    'ReportingPerson': 2
}];

2.Then, import and define the Diagram component in the src/app/page.tsx file, as shown below:

'use client'
import { DataManager, Query } from '@syncfusion/ej2-data';
import { StackPanel, TextElement, DataBinding, HierarchicalTree, DiagramComponent, Inject } from "@syncfusion/ej2-react-diagrams";
import { data } from './datasource';

export default function Home() {
  let items: DataManager = new DataManager(data as JSON[], new Query().take(7));

  return (
    <>
      <h2>Syncfusion React Diagram Component</h2>
      <DiagramComponent id="container" height={'450px'} layout={{
        type: 'HierarchicalTree',
        margin: {
          top: 20,
        },

      }} dataSourceSettings={{
        id: 'Id',
        parentId: 'ReportingPerson',
        dataManager: items,
      }} getNodeDefaults={(node: any) => {
        node.height = 50;
        node.style.fill = '#6BA5D7';
        node.borderColor = 'white';
        node.style.strokeColor = 'white';
        return node;
      }} getConnectorDefaults={(obj: any) => {
        obj.style.strokeColor = '#6BA5D7';
        obj.style.fill = '#6BA5D7';
        obj.style.strokeWidth = 2;
        obj.targetDecorator.style.fill = '#6BA5D7';
        obj.targetDecorator.style.strokeColor = '#6BA5D7';
        obj.targetDecorator.shape = 'None';
        obj.type = 'Orthogonal';
        return obj;
      }} setNodeTemplate={(obj: any) => {
        let content = new StackPanel();
        content.id = obj.id + '_outerstack';
        content.style.strokeColor = 'darkgreen';
        content.style.fill = '#6BA5D7';
        content.orientation = 'Horizontal';
        content.padding = {
          left: 5,
          right: 10,
          top: 5,
          bottom: 5,
        };
        let innerStack = new StackPanel();
        innerStack.style.strokeColor = 'none';
        innerStack.style.fill = '#6BA5D7';
        innerStack.margin = {
          left: 5,
          right: 0,
          top: 0,
          bottom: 0,
        };
        innerStack.id = obj.id + '_innerstack';
        let text = new TextElement();
        text.content = obj.data['Name'];
        text.style.color = 'white';
        text.style.strokeColor = 'none';
        text.style.fill = 'none';
        text.id = obj.id + '_text1';
        let desigText = new TextElement();
        desigText.margin = {
          left: 0,
          right: 0,
          top: 5,
          bottom: 0,
        };
        desigText.content = obj.data['Designation'];
        desigText.style.color = 'white';
        desigText.style.strokeColor = 'none';
        desigText.style.fill = 'none';
        desigText.style.textWrapping = 'Wrap';
        desigText.id = obj.id + '_desig';
        innerStack.children = [text, desigText];
        content.children = [innerStack];
        return content;
      }} >
        <Inject services={[DataBinding, HierarchicalTree]} />
      </DiagramComponent>
    </>
  )
}

Run the application

To run the application, use the following command:

npm run dev
yarn run dev

To learn more about the functionality of the Diagram component, refer to the documentation.

View the NEXT.js Diagram sample in the GitHub repository.