var sub = require('./openrtb-macrosub');
 
sub('http://some/crazy/win/URL/{$AUCTION_ID}/{$AUCTION_PRICE}', {id: 'some-id', price: 500});
// This will output 'http://some/crazy/win/URL/some-id/500'.
 
 
sub('http://some/URL/needs/{$AUCTION_SEAT_ID}', {seat: 'e$c4p ed'}, true);
// This will output 'http://some/URL/needs/e%24c4p%20ed'.