# Convert File URL to Base64 data in Bubble Plugin Action

Sometimes, you may receive a file URL that you want to convert into a base64 data string. Allow me to demonstrate the code necessary for converting a file URL to base64 using Node.js.

```javascript
async function convertUrlToBase64(url) {
    try {
        // Fetch the file
        const response = await fetch(url);
        if (!response.ok) {
            throw new Error('Network response was not ok ' + response.statusText);
            //return response.statusText;
        }
        
        // Read the file as ArrayBuffer
        const buffer = await response.arrayBuffer();
        
        // Convert ArrayBuffer to Base64
        const base64 = arrayBufferToBase64(buffer);
        
        return base64;
        
        console.log("base data is",base64);
    } catch (error) {
        console.error('Error plugin', error);
		return JSON.stringify(error);
    }
}

function arrayBufferToBase64(buffer) {
    let binary = '';
    const bytes = new Uint8Array(buffer);
    const len = bytes.byteLength;
    for (let i = 0; i < len; i++) {
        binary += String.fromCharCode(bytes[i]);
    }
    return Buffer.from(binary, 'binary').toString('base64');
}

// Usage
const fileUrl = 'https://cbe979c350ab6822f70996af87670e41.cdn.bubble.io/f1695201197519x684510935426170900/fghvj.png';
var basedata= await convertUrlToBase64(fileUrl);

return {
    
    output_data:basedata
    
}
```

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