Node.js HTML API to Generate & Convert HTML Files

Getting Started with Aspose.HTML Cloud SDK for Node.js

The recommended way to install Aspose.HTML Cloud SDK for Node.js is using NPM. Please use the following command for a smooth installation.

 npm install @asposecloud/aspose-html-cloud --save

Converting HTML to PDF in Node.js Apps

One of the most common tasks in web development is converting HTML document content to PDF file. Aspose.HTML Cloud SDK for Node.js provides a straightforward API to handle this conversion process, which is useful in creating PDFs from dynamically generated HTML web pages. The following example demonstrates how to convert an HTML file into a PDF inside Node.js applications. In this example, the convertHtmlToPdf method takes an HTML file, converts it to PDF, and saves it to the specified output location.

const convertHtmlToPdf = async () => {
    try {
        const htmlFilePath = 'path/to/sample.html';
        const outputPdfPath = 'output/sample.pdf';
        
        const result = await htmlApi.convertHtmlToPdf({
            file: htmlFilePath,
            output: outputPdfPath
        });
        
        console.log('HTML successfully converted to PDF:', result);
    } catch (error) {
        console.error('Error converting HTML to PDF:', error);
    }
};

convertHtmlToPdf();

Extract Text from HTML via Node.js SDK

Web scraping or data extraction from HTML documents is a common requirement in many applications. Aspose.HTML Cloud SDK for Node.js can help software developers in extracting a specific data from HTML files with just a couple of lines of code, such as text content, images, hyperlinks, metadata and so on. The following example shows how to extracts text from an HTML file inside Node.js environment. This feature is particularly useful when building content analysis tools, search engines, or even web crawlers that need to process large amounts of HTML content.

const extractTextFromHtml = async () => {
    try {
        const inputFile = 'path/to/sample.html';
        
        // Extract text from HTML document
        const result = await htmlApi.extractText({
            file: inputFile
        });
        
        console.log('Extracted text:', result.text);
    } catch (error) {
        console.error('Error during text extraction:', error);
    }
};

extractTextFromHtml();

HTML to Image Conversion in Node.js

Another crucial feature of the Aspose.HTML Cloud SDK for Node.js is converting HTML files to image formats, such as PNG, JPEG, BMP, GIF and more inside Node.js environment. This functionality is useful when generating visual snapshots of web content or when working with dynamic content like diagrams, charts, and other visual elements. This method allows developers to convert HTML content into high-quality images, which is ideal for capturing snapshots of dynamically generated web content. Here’s is an example the shows how to convert an HTML file to PNG inside Node.js applications.

const convertHtmlToImage = async () => {
    try {
        const htmlFilePath = 'path/to/sample.html';
        const outputImagePath = 'output/sample.png';
        
        const result = await htmlApi.convertHtmlToImage({
            file: htmlFilePath,
            output: outputImagePath,
            format: 'png'
        });
        
        console.log('HTML successfully converted to PNG:', result);
    } catch (error) {
        console.error('Error converting HTML to image:', error);
    }
};

Generating Reports from HTML in Node.js

For software developers building reporting systems, Aspose.HTML Cloud SDK for Node.js can convert HTML reports into various formats such as PDF, DOCX, or XPS inside Node.js applications. This enables users to export their reports in the desired format with minimal effort. By integrating the SDK into reporting tools, developers can automate the conversion of HTML reports into print-ready formats, making the document generation process more efficient.