Vue Js Create Qr Code:Vue.js is a JavaScript framework that allows developers to create dynamic and responsive web applications. One way to enhance the user experience is by generating QR codes, which can be done using an API like api.qrcode.

To create a QR code using this API in Vue.js, you would first need to install the axios library to make HTTP requests. Then, you would make a GET request to the api.qrcode endpoint, passing in the necessary parameters such as the text or URL to be encoded.

Once the API generates the QR code image, you can display it in your Vue.js application using an img tag with the src attribute set to the URL of the image returned by the API. With just a few lines of code, you can easily generate and display QR codes in your Vue.js application using api.qrcode.

How can I create a QR code using Vue js?

This Vue.js code creates a simple form that allows users to input text, and then generates a QR code based on that text using an external API. Here’s how it works:

• The data object contains two properties: userInput and qrCodeImageSrc. userInput is set to a default value of https://fontawesomeicons.com, which will be used as the default text input for the QR code. qrCodeImageSrc is initially an empty string.
• The template contains a form-group div that includes a label and an input field where users can input text. There’s also a button that calls the generateQRCode method when clicked.
• Below the form-group div, there’s a qr-code-container div that contains an img tag. This img tag will display the generated QR code image once it’s created.
• In the methods object, there’s a generateQRCode method that makes an HTTP request to an external API using the axios library. The axios method takes several parameters, including the data property (which is set to the userInput value), the size property (which sets the size of the QR code image), and the margin property (which sets the margin around the QR code).
• Once the HTTP request is successful, the response is converted to a Blob object, which is then used to create a URL using the URL.createObjectURL method. This URL is then assigned to the qrCodeImageSrc property, which causes the img tag in the template to display the generated QR code image.

Overall, this code demonstrates how to use Vue.js to create a simple form that generates a QR code based on user input

Vue Js Generate and Download Qr Code

 <div id="app">
        <div class="form-group">
            <label for="input">Enter text:</label>
            <input id="input" type="text" v-model="userInput">
            <button @click="generateQRCode()">Generate QR Code</button>
        </div>
        <div class="qr-code-container">
            <img :src="qrCodeImageSrc" alt="QR Code" v-if="qrCodeImageSrc">
        </div>
    </div>
    <script type="module">
        const app = new Vue({
            el: "#app",
            data: {
                userInput: 'https://fontawesomeicons.com',
                qrCodeImageSrc: ''
            },
            methods: {
                generateQRCode() {
                    axios({
                        method: 'GET',
                        url: 'https://api.qrserver.com/v1/create-qr-code/',
                        params: {
                            data: this.userInput,
                            size: '200x200',
                            margin: '0'
                        },
                        responseType: 'arraybuffer'
                    })
                        .then(response => {
                            const imageSrc = URL.createObjectURL(new Blob([response.data]));
                            this.qrCodeImageSrc = imageSrc;
                        })
                        .catch(error => {
                            console.log(error);
                        });
                }
            }

        })
    </script>

Output of Vue Js Generate and Download Qr Code