Support and flatten .geojson files

[RandomFractals]

This would make many GIS devs and experts very happy.

See this data wrangling ticket for more context info: RandomFractals/vscode-leaflet#9

and sensible defaults and conventions that could be used for converting geo data to flat data files: https://github.com/keplergl/kepler.gl/blob/master/docs/user-guides/b-kepler-gl-workflow/a-add-data-to-the-map.md#supported-file-formats

[RandomFractals]

@LoneRifle: any update on this geojson data view support merge?

I just tried it, but looks like it's not available yet 😞

see: https://flatgithub.com/RandomFractals/geo-data-viewer?filename=data%2Ftopojson%2Fusa-albers-counties.topo.geojson&sha=d85e8857fef32bfb96d3d1eeebf1fc04669dd052

looks nice in the default github file view tho: https://github.com/RandomFractals/geo-data-viewer/blob/master/data/topojson/usa-albers-counties.topo.geojson

[LoneRifle]

I don't work for GitHub, so you should direct your queries to the others on this repo.

[RandomFractals]

oh, that was quite a contribution.

@Wattenberger can you please review that PR and merge?

Thanks!

[LoneRifle]

githubocto/flat-ui#11 was merged into release 0.9.4 of the corresponding npm package; CSV downloads of features in FeatureCollection objects should hence have properly formatted geometry JSON, in-line with kepler.gl guidelines.

[RandomFractals]

nope. same result as above. try it: https://flatgithub.com/RandomFractals/geo-data-viewer?filename=data%2Ftopojson%2Fusa-albers-counties.topo.geojson&sha=d85e8857fef32bfb96d3d1eeebf1fc04669dd052

[LoneRifle]

nope. same result as above. try it: https://flatgithub.com/RandomFractals/geo-data-viewer?filename=data%2Ftopojson%2Fusa-albers-counties.topo.geojson&sha=d85e8857fef32bfb96d3d1eeebf1fc04669dd052

That's due to the extension of the files concerned; flat-viewer avoids .geojson.

Consider this example instead:
https://flatgithub.com/datascapesg/help-our-hawkers?filename=stalls.json&sha=97b5a322eb7906e2bcef01e9f37ba390fd40c7cc&tab=features

If you are comfortable for flat-viewer to parse .geojson files as if they are plain JSON, I can put in the relevant one-liner PR.

[RandomFractals]

idk. If this loads a leaflet map: https://github.com/RandomFractals/geo-data-viewer/blob/master/data/topojson/usa-albers-counties.topo.geojson

I would expect .geojson file to load in flat-viewer in a data grid.

That's why I opened this request.

[Wattenberger]

Flat Viewer now handles geojson & topojson files, as well as spreading the nested properties into columns

[RandomFractals]

Thank you!