MongoDB invalid/valid polygon example

polygon-example.js

//Invalid - Each point/vertex of the polygon is provided.
{ "type": "Polygon",
    "coordinates": [
      [ [ 100.0 , 0.0 ] , [ 101.0 , 0.0 ] , [ 101.0 , 1.0 ] , [ 100.0 , 1.0 ] ] 
    ]
}
 
//Valid - First vertex of the polygon is provided at both the beginning and end of a LinearRing.
{ "type": "Polygon",
    "coordinates": [
      [ [ 100.0 , 0.0 ] , [ 101.0 , 0.0 ] , [ 101.0 , 1.0 ] , [ 100.0 , 1.0 ] , [ 100.0 , 0.0 ] ]
    ]
}