Open file with XML Reader Loop over all nodes, and: Store their latitude/longitude in an array If the node has tags, store the node in the database "_id" : "n105", "type" : NumberLong(1), "loc" : [ -0.1430911, 51.5238028 ], "tags" : [ "amenity=pub", "name=The Green Man" ] Loop over all the ways, and: Look up locations for each node in the node array Store the way into the database