# OpenALPR HTTP Wrapper

OpenALPR HTTP Wrapper is a self-hosted home automation app. A lightweight HTTP API wrapper around the OpenALPR license-plate recognition command-line tool, used by the Plate-Minder Docker container to query plate-detection results. It is open source and self-hosted, installable on Docker Hub and Unraid.

Canonical page: https://ourlocalhost.com/app/2130/openalpr-http-wrapper

## Description

A lightweight HTTP API wrapper around the OpenALPR license-plate recognition command-line tool, used by the Plate-Minder Docker container to query plate-detection results.

## Platform availability

Available on 1 of 9 platforms: Unraid.

## Links

- Docker Hub: https://hub.docker.com/r/sclaflin/open-alpr-http-wrapper/
- GitHub: https://github.com/sclaflin/Plate-Minder
- Unraid: https://ca.unraid.net/apps/open-alpr-http-wrapper-1p4cqu21ry2ak6?q=open-alpr-http-wrapper

## Common questions

### How do I submit an image to open-alpr-http-wrapper for detection?

Send an HTTP POST with image data to the /detect endpoint. It returns JSON results from the attempted detection.

### Which services must run in a minimal Plate-Minder deployment that uses open-alpr-http-wrapper?

A minimal Plate-Minder setup requires the plate-minder and open-alpr-http-wrapper services. A plate-minder-web service is optional for setup help.

### Where does Plate-Minder store captured images and data when using open-alpr-http-wrapper?

Captured images and data are placed in the ./data folder.

### What gotcha is reported for the OpenALPR CLI on a Raspberry Pi 4?

One user manually compiled OpenALPR for armv7 because no prebuilt repository was found.

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Source: Our Local Host (https://ourlocalhost.com/app/2130/openalpr-http-wrapper), the self-hosted and open-source app directory.