Accessing secured pages in Node with Unfetch

In this guide, we'll show you how to access secured page (protected by basic authentication) using Node and the Unfetch library to convert them to PDF using PDFShift's API.

When you're converting a document, you might want to access a secured page (protected by basic authentication) to convert it to PDF. This can be done by setting the auth parameter to the request.

const fetch = require('unfetch')
const fs = require('fs');

// You can get an API key at https://pdfshift.io
api_key = 'sk_xxxxxxxxxxxx'

params = {
    source: 'https://www.example.com',
    // You can set a basic authentication by passing the "auth" property which contains a username and password
    auth: {
        username: 'user',
        password: 'password'
    }
}

const response = await fetch('https://api.pdfshift.io/v3/convert/pdf', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'Authorization': `Basic ${Buffer.from(`api:${api_key}`).toString('base64')}`
    },
    body: JSON.stringify(params)
})

// Handle errors:
if (!response.ok) {
    throw new Error(`Request failed with status code ${response.status}: ${response.data}`);
}

fs.writeFileSync('result.pdf', await response.blob());

console.log('The PDF document was generated and saved to result.pdf');

This allows you to protect your documents from any visitors while allowing PDFShift to access the page and convert it to PDF.

For further details on the auth property and its usage, please refer to our dedicated documentation.

We hope this guide was helpful. If you have any questions or noticed any issues on the code above,
feel free to drop us a line.