Thank you for your answer, it helped me to find that I wanted to do

        var sources = Game.spawns[NomSpawner].room.find(FIND_SOURCES);
        for (var j = 0; j < sources.length; j++)
        {
            var chemin = Game.spawns[NomSpawner].pos.findPathTo(sources[j].pos);
            for (var i = 0; i < chemin.length; i++) 
            {
                Game.spawns[NomSpawner].room.createConstructionSite(chemin[i].x,chemin[i].y, STRUCTURE_ROAD);
            }
        }

Now everything works

Hello,

I try to build a road between 2 points, but this is not working :

        var sources = Game.spawns['spawn1'].room.find(FIND_SOURCES); // find source location
        var path = Game.spawns['spawn1'].pos.findPathTo(sources[0].pos); // get path between source and spawn
        
        for (var i = 0; i < path.length; i++) // for all position in the path, do :
        {
            Game.spawns['spawn1'].room.findPathTo(path[i].X,path[i].Y, STRUCTURE_ROAD); // build road
        }

I don't understand how to work my variable path. He contain "object Object" x18 time (18 tile between my two point) I just want to get path[0].X ; path[0].Y ; path[1].X ; path[1].Y ; ...

If someone can help me, thank you ^^