QR Data Manager (QRDM)

QRDM provides a python package, network API endpoints, and web interfaces for encoding and decoding documents as a series of QR codes.

Setup and Execution

The qrdm package is written in pure Python; the ease of installation is dependent on availability of its dependencies.

The simplest method of installing the qrdm package is via pip.

pip install qrdm

If pip is able to reach a suitable package index, qrdm will install along with its core Python dependencies.

IMPORTANT

The QR decoding functionality depends on the pyzbar python package, which in turn depends on the zbar shared library. This may require you to install the zbar package via your system's package manager. See the pyzbar installation instructions for more details.

Two main "package extras" are available for qrdm that provide REST API application ("backend") and Web application ("frontend") services for the QR encoding & decoding functions. These can be included by specifying qrdm[backend] or qrdm[frontend] to the installation command above, respectively.

Web UI via Streamlit

A Streamlit "frontend" can be run via:

git clone https://github.com/mit-ll/qrdm
cd qrdm
python -m pip install .[frontend]
streamlit run ui/QRDM_Home.py --client.toolbarMode=viewer

This will host the app at http://localhost:8501 by default, with pages for QR encoding and decoding. The host and port can be controlled by passing --server.port=XXXX and --server.address=X.X.X.X, as per the syntax of the streamlit run command.

REST API via FastAPI

To run the "backend" FastAPI app via uvicorn, use uvicorn directly. For example:

python -m pip install qrdm[backend]
uvicorn qrdm.backend:app --host localhost --port 8182

This will result in the app being hosted at http://localhost:8182. Swagger documentation will be hosted at http://localhost:8182/docs, if an internet connection is available. Further options are available via uvicorn command-line configuration.

Disclaimer

DISTRIBUTION STATEMENT A. Approved for public release: distribution unlimited.

© 2024 Massachusetts Institute of Technology

• Subject to FAR 52.227-11 - Patent Rights - Ownership by the Contractor (May 2014)
• SPDX-License-Identifier: MIT

This material is based upon work supported by the Name of Sponsor under Air Force Contract No. FA8721-05-C-0002 and/or FA8702-15-D-0001. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the Name of Sponsor.

Delivered to the U.S. Government with Unlimited Rights, as defined in DFARS Part 252.227-7013 or 7014 (Feb 2014). Notwithstanding any copyright notice, U.S. Government rights in this work are defined by DFARS 252.227-7013 or DFARS 252.227-7014 as detailed above.

The software/firmware is provided to you on an As-Is basis.