How to host your site as a sub-directory?

Under “Domains” in Bullet dashboard, you can find “Href Prefix” where you can add your sub-directory, ex. /blog or /help.

After adding that, you have to set a reverse proxy to your primary domain and the sub-directory. You can use cloudflare workers for reverse proxying, or use something like nginx server for reverse proxying.

1. Cloudflare workers

Step-1: Create a new Cloudflare worker, and add the below code. Make appropriate changes in the third and fifth lines of the below code.

addEventListener('fetch', (event) => {
    // Add your bullet subdomain below. Avoid trailing slash
    const bulletUrl = new URL(`https://{{bullet-subdomain}}-bullet.pages.dev`)
    // Add sub-directory path where you want to see your bullet site in the next line. Avoid trailing slash/
    const subdirectory = "/blog" 
    const requestUrl = new URL(event.request.url)
    const pathname = requestUrl.pathname
    if (pathname.startsWith(`${subdirectory}/`) || pathname === subdirectory) {
        event.passThroughOnException()
        event.respondWith(
            fetch(`${bulletUrl.origin}${pathname.replace(subdirectory, "")}`, event.request),
        )
    } else {
        event.respondWith(fetch(event.request))
    }
})

Step-2: After creating the worker and deploying, you will have to add the Worker Route, and set the path to 
https://example.com/blog*

2. Nginx

Add this snippet under your 

location /blog/ {
    proxy_pass https://{{bullet-subdomain}}-bullet.pages.dev/;
}

3. Next.js

// next.config.js

/** @type {import('next').NextConfig} */
const config = {
    rewrites() {
        const bulletUrl = new URL(
            `https://{{bullet-subdomain}}-bullet.pages.dev`,
        ).origin
        return [
            {
                source: '/blog',
                destination: `${bulletUrl}/blog`,
            },
            {
                source: '/blog/:path*',
                destination: `${bulletUrl}/blog/:path*`,
            },
        ]
    },
}

module.exports = config

Feel free to reach out to support if you have any issues.