Harp Nextcloud Jun 2026

HaRP enables real-time apps by supporting WebSockets, offering lower latency. Key Benefits of Using HaRP with Nextcloud

If you want to add HaRP to an existing AIO installation, you will need to:

Since ExApps run as separate containerized microservices, you can write them in that can speak HTTP and/or WebSockets. Python, Node.js, Go, Rust – whatever your team knows best. AppAPI handles the lifecycle and integration, while HaRP handles the routing.

: Secure fallback or designated encrypted communication channel.

Using Fast Reverse Proxy (FRP) tunnels, ExApp containers do not need to expose ports to the host or be directly reachable from the main Nextcloud server. This enables easier NAT traversal and deployment on remote hosts, such as specialized GPU servers for AI workloads. harp nextcloud

'harp' => [ 'enabled' => true, 'signaling_server' => 'wss://your-domain.com:42000', 'fallback_to_webdav' => true, // If Harp fails, use normal download. 'encryption' => 'end-to-end', ],

Nextcloud uploads the files to a designated folder on your server.

Will this be deployed (bare metal) or in the cloud (AWS, Azure, etc.)?

nextcloud/HaRP: Fast Proxy for AppAPI(Nextcloud 32+) - GitHub AppAPI handles the lifecycle and integration, while HaRP

A team of 10 editors in different countries. The raw footage (500GB) is stored in a Nextcloud folder. Normally, one editor uploads (takes 2 hours), the server streams to 9 others (crashing the server). Editor A uploads. Editor B downloads from Editor A. Editor C downloads from A and B simultaneously. The server does nothing. Speed increases with every new peer.

When deploying the appapi-harp container, it maps specific communication channels to maintain the network separation:

Edit config/config.php :

Add the official Nextcloud HaRP Image to your environment stack. Ensure it shares the same Docker network infrastructure as your principal Nextcloud instance. Nextcloud AppAPI HaProxy Reversed Proxy (HaRP) - GitHub This enables easier NAT traversal and deployment on

: External applications (ExApps) had to expose ports to the host system or be explicitly reachable by the Nextcloud server, leading to intricate firewall rules and security vulnerabilities.

I can provide optimized configuration scripts or Docker Compose files for your specific project. Share public link

In a controlled test with three nodes (Germany, Virginia, Singapore) sharing a 10GB ISO file:

If you’ve been following Nextcloud’s recent releases, you may have noticed a new piece of infrastructure quietly changing how the platform runs external applications. It’s called – the Nextcloud AppAPI HaProxy Reverse Proxy – and it represents a fundamental shift in how Nextcloud communicates with its own extension ecosystem.

If you are managing a Nextcloud instance and want to "make" this piece work, here are the core integration points: Deployment Type Key Integration Step