react-jsonschema-form is a powerful library for building forms in React based on JSON schemas. It allows you to define your form structure using JSON, making it highly customizable and flexible. Here’s a step-by-step tutorial on how to use react-jsonschema-form:

Step 1: Install react-jsonschema-form

You can install react-jsonschema-form via npm or yarn:

npm install @rjsf/core @rjsf/material-ui
# or
yarn add @rjsf/core @rjsf/material-ui

Step 2: Define Your JSON Schema

Define your form schema using JSON. This schema will define the structure of your form, including field types, labels, validations, etc. For example:

{
  "type": "object",
  "properties": {
    "name": { "type": "string", "title": "Name" },
    "email": { "type": "string", "title": "Email", "format": "email" }
  },
  "required": ["name", "email"]
}

Step 3: Create a Form Component

Create a new component to render your form using react-jsonschema-form. Here’s an example:

// FormComponent.js
import React from 'react';
import Form from '@rjsf/material-ui';

const schema = {
  type: 'object',
  properties: {
    name: { type: 'string', title: 'Name' },
    email: { type: 'string', title: 'Email', format: 'email' }
  },
  required: ['name', 'email']
};

const uiSchema = {
  name: { 'ui:autofocus': true }
};

const FormComponent = () => {
  const onSubmit = ({ formData }) => {
    console.log('Form data:', formData);
  };

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

export default FormComponent;

Step 4: Use the Form Component

Use your FormComponent in your main application or wherever you need it:

// App.js
import React from 'react';
import FormComponent from './FormComponent';

const App = () => {
  return (
    <div>
      <h1>React JSONSchema Form Example</h1>
      <FormComponent />
    </div>
  );
};

export default App;

Step 5: Run Your Application

Run your React application and see the form in action:

npm start

Conclusion

react-jsonschema-form is a powerful library for building dynamic forms in React. This tutorial covered the basic setup and usage of react-jsonschema-form to create a simple form component. You can further customize your forms by exploring additional props, widgets, and validation options provided by the library. Check out the official documentation for more information and advanced usage.