How to create dynamic search box in ReactJS? - GeeksforGeeks

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.
JavaScript
ReactJS
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Web Technologies
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