How to create a dynamic form in React Js using JSON schema

Creating a dynamic form in React using JSON schema involves several steps. You’ll need to manage the form’s dynamic behavior with React’s state management and a library like react-jsonschema-form to generate forms based on a JSON schema. Here’s a comprehensive guide:

Step 1: Install react-jsonschema-form

First, install the react-jsonschema-form package using npm or yarn:

npm install @rjsf/core

or

yarn add @rjsf/core

Step 2: Define the JSON Schema

Create a JSON schema representing your form structure, including field types, validations, and other properties.

const schema = {
  title: "My Form",
  type: "object",
  required: ["firstName", "lastName"],
  properties: {
    firstName: { type: "string", title: "First Name" },
    lastName: { type: "string", title: "Last Name" },
    age: { type: "integer", title: "Age" },
    bio: { type: "string", title: "Bio" },
    password: { type: "string", title: "Password", minLength: 3 }
  }
};

Step 3: Create the React Component

Create a React component using the Form component from react-jsonschema-form to render the form based on your schema.

import React from 'react';
import Form from '@rjsf/core';

const MyForm = () => {
  const onSubmit = ({formData}) => console.log("Data submitted: ", formData);

  return (
    <Form schema={schema} onSubmit={onSubmit} />
  );
};

export default MyForm;

Step 4: Integrate the Form in Your Application

Include the MyForm component in your application:

import React from 'react';
import ReactDOM from 'react-dom';
import MyForm from './MyForm';

ReactDOM.render(
  <MyForm />,
  document.getElementById('root')
);

Additional Considerations

• Customization: You can customize form fields, add validation logic, and apply styling.
• Advanced Features: Explore additional options and features provided by react-jsonschema-form in its documentation.
• State Management: For complex forms, consider using more sophisticated state management solutions like Redux or Context API.

This guide provides a basic setup for a dynamic form in React using JSON schema. You can extend and modify it according to your specific requirements and complexity of the form.