Most ExApps are deployed via Docker. Familiarity with docker-compose or the Nextcloud All-in-One (AIO) is highly beneficial. 3. Step-by-Step Installation Guide Step A: Enable AppAPI Log in to your Nextcloud instance as an administrator. Navigate to the Apps section and search for AppAPI .
. It bypasses the PHP stack for web-to-app traffic, routes request data with minimal latency, and seamlessly supports Nextcloud WebSockets . How HaRP Works Under the Hood
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.
Deploy multiple Ubuntu servers running Nextcloud via PHP-FPM, or orchestrate them using Kubernetes. Crucially, these servers must remain . No user data or configuration files should live permanently on these local drives. Layer 3: The Cache and Lock Engine harp nextcloud
Faster UI response times due to efficient routing.
Unlocking Real-Time Power: A Deep Dive into Nextcloud HaRP If you’ve been following the Nextcloud ecosystem lately, you’ve likely heard a new acronym buzzing around: High-performance AppAPI Reverse Proxy
HaRP has become a cornerstone of Nextcloud’s AI strategy. By running inference engines (such as Llama, GPT‑4‑like models, or specialized transcription models) as ExApps, administrators can offer AI‑powered features while keeping all data inside their own network. The combination of HaRP and AppAPI lets you “control the connection to your local inference server” and deliver a Nextcloud with integrated AI that never sends sensitive data to external cloud services. Most ExApps are deployed via Docker
HaRP introduces several architectural improvements over its predecessor:
The main proxy routes this specialized request to HaRP.
HaRP is a dedicated reverse proxy system designed specifically for to support the AppAPI and its so‑called External Apps (ExApps) . On the surface, HaRP might look like yet another reverse proxy, but it serves a very specific purpose: it sits behind your main reverse proxy (such as NGINX or Apache) and routes requests directly to ExApps, completely bypassing the Nextcloud PHP stack. Step-by-Step Installation Guide Step A: Enable AppAPI Log
HaRP can proxy requests directly from the web UI to the ExApp without passing through the Nextcloud server, saving significant CPU and memory.
Before HaRP, administrators often relied on complex setups involving DockerSocketProxy to manage external containers. This was technically demanding and had limitations regarding connectivity and performance. HaRP serves as a "Version 2.0" of this approach, addressing key pain points:
