upload and add layer "on the fly" from geojson feature, from json external file

[Kolam Training Center Admin]

Hi,
i would like to add a simple control to upload a new local geojson file, add a new layer for it and display its content on the map.
I saw how to parse json content, i know how to add layer, how to automaticly load a geojson file and show it, BUT

i don't know how to let the user doing this by his own !
i mean:

1. selecting a new json file on his computer and give a name for the new layer
2. creating a temporary layer to include the geojson feature (from the file)
3. showing the content of this file on the leaflet map

i assume that after reloading the page, the layer is not there anymore (it's ok for me!)
I wouldn't like to use jquery for that, a simple ajax call must be nough ?..please :)

thanks for your answer,bye

[Bryan McBride]

You might want to take a look at Jason Sanford's GeoJSONLint project, as this is very similar: http://geojsonlint.com/. The source is up on github at https://github.com/JasonSanford/geojsonlint.com.

BRYAN