Changing style of Leaflet Realtime geoJson features - leaflet

Question

I have a leaflet map using leaflet-realtime to display and update a position, polygon and line from a geoJson source (data is the position and field of view from an airborne camera). I want to change the style of the line and polygon from the default blue. I understand the leaflet-realtime extends L.geojson so I thought the following code should work but I get options.style is not a function. I have been looking at other examples to try and do this but have spent the day frustrated.
var lineStyle = {
color: 'black',
weight: 5,
opacity: 0.5
}
los = L.realtime({
url: 'http://127.0.0.1/geojson/los2.geojson',
crossOrigin: true,
type: 'json'
}, {
interval: 1 * 500,
style: lineStyle
}).addTo(map);
los.on('update', function(){
map.flyTo(
[this._features.los.geometry.coordinates[1][1],
this._features.los.geometry.coordinates[1][0]]
)
});
If anyone can point me in the right direction it would be hugely appreciated.
Thanks

Answer 1

Yes options.style must be a function - look at:
https://leafletjs.com/reference-1.7.1.html#geojson-style
Change your code:
var lineStyle = {
color: 'black',
weight: 5,
opacity: 0.5
}
los = L.realtime({
url: 'http://127.0.0.1/geojson/los2.geojson',
crossOrigin: true,
type: 'json'
}, {
interval: 1 * 500,
style: function() { return lineStyle; }
}).addTo(map);
los.on('update', function(){
map.flyTo(
[this._features.los.geometry.coordinates[1][1],
this._features.los.geometry.coordinates[1][0]]
)
});