poi.json.gz is a gzipped export of our MongoDB cache. This is a complete export of our POI database. When extracted this file is hundreds of MB in size.
reference.json and reference.json.gz are an export of our current reference data (connection types, network operators, countries etc)
Note:
the POI data is a JSON object per line. The file is an export from MongoDB and is not formatted as a JSON array, so you will generally read one line at a time and parse each line as JSON, then add to your array.
you should not consume or key on the _id data fields as these are artifacts of our MongoDB export database cache and will change over time as our cache is refreshed.
The repository may have a large history changes, so clone with: git clone https://github.com/openchargemap/ocm-data --depth 1 to get the fastest/smallest download.