error with pmtiles_metadata (not compatible with v3?)

[prusswan]

leafmap/leafmap/common.py

Line 11351 in cbbb32c

metadata["vector_layers"] = json.loads(metadata["json"])["vector_layers"]

does not work with current PMTiles (metadata does not have the "json" key)

These are the keys present in the header and metadata from one of the current PMTiles extracted from protomaps daily builds:

{'header': ['addressed_tiles_count',
            'center_lat_e7',
            'center_lon_e7',
            'center_zoom',
            'clustered',
            'internal_compression',
            'leaf_directory_length',
            'leaf_directory_offset',
            'max_lat_e7',
            'max_lon_e7',
            'max_zoom',
            'metadata_length',
            'metadata_offset',
            'min_lat_e7',
            'min_lon_e7',
            'min_zoom',
            'root_length',
            'root_offset',
            'tile_compression',
            'tile_contents_count',
            'tile_data_length',
            'tile_data_offset',
            'tile_entries_count',
            'tile_type',
            'version'],
 'metadata': ['attribution',
              'description',
              'name',
              'planetiler:buildtime',
              'planetiler:githash',
              'planetiler:osm:osmosisreplicationseq',
              'planetiler:osm:osmosisreplicationtime',
              'planetiler:osm:osmosisreplicationurl',
              'planetiler:version',
              'type',
              'vector_layers']}

Related links:

• https://github.com/protomaps/PMTiles/blob/main/python/bin/pmtiles-show
• Unclear Metadata (JSON?) spec protomaps/PMTiles#111