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How to create dynamic search box in ReactJS?
  • Last Updated : 18 Jan, 2021

The dynamic search box is a search bar with a text field to take the user input and then perform some operation on the user input to show him the dynamic results based on his input. API calls in made whenever a user starts typing in order to show him the dynamic options. For example Youtube search box, Google Searchbox, etc. Material UI for React has this component available for us and it is very easy to integrate. We can create a simple dynamic search box in ReactJS using the following approach.

Creating React Application And Installing Module:

Step 1: Create a React application using the following command:

npx create-react-app foldername

Step 2: After creating your project folder i.e. foldername, move to it using the following command:

cd foldername

Step 3: After creating the ReactJS application, Install the material-ui modules using the following command:



npm install @material-ui/core
npm install @material-ui/lab

Project Structure: It will look like the following.

Project Structure

App.js: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

Javascript




import React, { useState } from 'react'
import TextField from '@material-ui/core/TextField';
import Autocomplete from '@material-ui/lab/Autocomplete';
  
const App = () => {
  
  const [myOptions, setMyOptions] = useState([])
  
  const getDataFromAPI = () => {
    console.log("Options Fetched from API")
  
    fetch('http://dummy.restapiexample.com/api/v1/employees').then((response) => {
      return response.json()
    }).then((res) => {
      console.log(res.data)
      for (var i = 0; i < res.data.length; i++) {
        myOptions.push(res.data[i].employee_name)
      }
      setMyOptions(myOptions)
    })
  }
  
  return (
    <div style={{ marginLeft: '40%', marginTop: '60px' }}>
      <h3>Greetings from GeeksforGeeks!</h3>
      <Autocomplete
        style={{ width: 500 }}
        freeSolo
        autoComplete
        autoHighlight
        options={myOptions}
        renderInput={(params) => (
          <TextField {...params}
            onChange={getDataFromAPI}
            variant="outlined"
            label="Search Box"
          />
        )}
      />
    </div>
  );
}
  
export default App

Step to Run Application: Run the application using the following command from the root directory of the project:

npm start

Output: Now open your browser and go to http://localhost:3000/, you will see the following output:

In the above example, you can see that whenever the user types anything, an API called is made to fetch the options, this is how we can show dynamic options in the search box just like YouTube, Google, etc.

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