anchor.diff:                   "heightInKilometer":0,
                    "currentInAmpere":4700,
                    "location":[
  -                    42.6345,
  +                    8.6345,
                       20.3064
                    ]
  -              }
  +              },
  +               {
  +                  "provider": "NOWCAST",
  +                  "occurredAt": "2017-01-05T12:20:14.974Z",
  +                  "heightInKilometer": 0,
  +                  "strokeType": "CLOUD_TO_GROUND",
  +                  "currentInAmpere": -3500,
  +                  "location": [
  +                    9.3345,
  +                    19.7064
  +                  ]
  +                }
              ]
           }
   
  +#
  +
  +# Weighted Lightning
  +
  +## Retrieve weighted lightning observation [?timeSpan={timeSpan}&spatialResolution={resolution}&locationWithin={lonTopLeft,latTopLeft,lonBottomRight,latBottomRight}&occurrenceFrom={startTime}&occurrenceUntil={endTime}]
  +## Retrieve weighted lightning observation [?timeSpan={timeSpan}&spatialResolution={resolution}&locationWithin={lonTopLeft,latTopLeft,lonBottomRight,latBottomRight}&occurredFrom={startTime}]
  +
  +
  +#### Example
  +https://lightning.weather.mg/weigh?&timeSpan=PT15M&spatialResolution=0.5&locationWithin=[-10,80],[10,5]&occurrenceFrom=2017-01-05T12:19:14Z&occurrenceUntil=2017-01-05T12:21:15Z
  +https://lightning.weather.mg/weigh?&timeSpan=PT15M&spatialResolution=0.5&locationWithin=[-10,80],[10,5]&occurrenceFrom=2017-01-05T12:19:14Z
  +https://lightning.weather.mg/weigh?&timeSpan=PT15M&spatialResolution=0.5&locationWithin=[-10,80],[10,5]
  +
  +### Observed weighted lightning for a given boundingBox, time period, weighted by time span and spatial resolution
  +
  +This resource provides data from existing lightning observation providers.
  +For any request service returns a set of lightnings occurred in geographical
  +bounding box locations during period of time specified in parameters.
  +
  +
  ++ Parameters
  +    + timeSpan: 'PT15M, PT5M' (string required)
  +         - time span interval in which lightning should be weighted
  +
  +    + spatialResolution '0.5, 0.25, 0.05' (string required)
  +         - spatial resolution within which lightning should be weighted
  +
  +    + locationWithin: `[-10,80],[10,5]`   (longitude top left,
  +                                           latitude top left,
  +                                           longitude bottom right,
  +                                           latitude bottom_right, required)
  +        - latitude in degree numeric format and in range <-90,90> eg. -85.541, 5.32,
  +        - longitude in degree numeric format and in range <-180,180> eg. -123.454, 179.864
  +
  +    + occurrenceFrom: `2017-01-05T12:21:14Z` (start time range, optional)
  +        - start lightning observation time. End time is current time by default, setup by the service.
  +
  +    + occurrenceUntil: `2017-01-05T12:21:15Z` (end time range, optional)
  +        - time range period for lightning observation.
  +
  +
  +
  ++ Response 200 (application/json)
  +
  +    + Headers
  +
  +            Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.EkN-DOsnsuRjRO6BxXemmJDm3HbxrbRzXglbN2S4sOkopdU4IsDxTI8jO19W_A4K8ZPJijNLis4EZsHeY559a4DFOd50_OqgHGuERTqYZyuhtF39yxJPAjUESwxk2J5k_4zM3O-vtd1Ghyo4IbqKKSy6J9mTniYJPenn5-HIirE
  +
  +    + Body
  +           {
  +           	"weightedLightningList": [{
  +            			"occurredFrom": "2017-01-05T12:15:00.000Z",
  +            			"currentSum": 8000,
  +            			"weightedLocation": [9.5033, 19.4814],
  +            			"strikesNumber": 2,
  +            			"timeSpan": "PT15M",
  +            			"occurredTo": "2017-01-05T12:30:00.000Z",
  +            			"region": [[9.25, 19.75], [9.75, 19.25]],
  +            			"weightedObservation": "2017-01-05T12:20:47.000Z"
  +            		}, {
  +            			"occurredFrom": "2017-01-05T12:15:00.000Z",
  +            			"currentSum": 4700,
  +            			"weightedLocation": [8.6345, 20.3064],
  +            			"strikesNumber": 1,
  +            			"timeSpan": "PT15M",
  +            			"occurredTo": "2017-01-05T12:30:00.000Z",
  +            			"region": [[8.25, 20.75], [8.75, 20.25]],
  +            			"weightedObservation": "2017-01-05T12:21:14.000Z"
  +            		}
  +            ]
  +          }
  +
  +
   #
positive.code:                  "heightInKilometer":0,
                   "currentInAmpere":4500,
                   "location":[
                      41.6345,
                      19.3064
                   ]
                },
  
negative.code: 
  # Group Lightning
  
  ## Retrieve lightning observation [?provider={provider1,provider2}&locationWithin={lonTopLeft,latTopLeft,lonBottomRight,latBottomRight}&occurrenceFrom={startTime}&occurrenceUntil={endTime}]
  ## Retrieve lightning observation [?provider={provider1,provider2}&locationWithin={lonTopLeft,latTopLeft,lonBottomRight,latBottomRight}&occurredFrom={startTime}]
  
  #### Example
  https://lightning.weather.mg/search?provider=NOWCAST&locationWithin=[-10,80],[10,5]&occurrenceFrom=2017-01-05T12:21:14Z&occurrenceUntil=2017-01-05T12:21:15Z
  https://lightning.weather.mg/search?provider=NOWCAST&locationWithin=[-10,80],[10,5]&occurrenceFrom=2017-01-05T12:21:14Z
  https://lightning.weather.mg/search?provider=NOWCAST&locationWithin=[-10,80],[10,5]
  
  
  ### Observed lightning for a given boundingBox and time period
  
  