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Neo4j-OSM-Connector

Neo4j OSM Importer is a simple GUI application designed to load OpenStreetMap (OSM) data into a Neo4j database. Built using Qt, this program utilizes Podman to run a Neo4j container and executes Cypher queries to import OSM data.

Author

Bongjae Kwon

Civil and Environmental Engineering GIS/LBS Lab

Seoul National University

[email protected]

Features

  1. Start Podman Container
    Launch a Neo4j 3.5.2 container to set up the database environment.

  2. Import OSM Data to Neo4j
    Import OSM data from a specified local file path into Neo4j.

  3. Execute Cypher Queries via REST API
    Send Cypher queries to Neo4j using its REST API for data processing.

System Requirements

  • Operating System: Linux (e.g., openSUSE, Fedora)
  • Dependencies:
    • Qt5/Qt6 (including Qt Widgets)
    • Podman
    • Neo4j 3.5.2
    • libcurl

Build and Run

1. Install Dependencies

  • Install Qt Development Environment 
    sudo zypper install qt5-devel  # openSUSE
sudo dnf install qt5-qtbase-devel  # Fedora

Usage

Start the Podman Container

  1. Enter the OSM file path in the input field.
  2. Click the Start Podman Container button to launch the Neo4j container.
  3. The status bar will indicate whether the container is running.

Import OSM Data into Neo4j

  1. Click the Import OSM to Neo4j button to execute a Cypher query and import the OSM data.

Troubleshooting

Podman Errors

  • Verify that Podman is correctly installed.
  • Use sudo if additional permissions are required to run Podman commands.

Cypher Query Issues

  • Ensure Neo4j's REST API is running and accessible.
  • Confirm that the Basic Authentication credentials are correct.

Future Improvements

  • Add validation for the OSM file path.
  • Support additional Cypher query options.
  • Enhance container management and status monitoring.

License

This project is licensed under the MIT License.