use a separate error handler for api router errors

services/web/app/coffee/Features/Errors/ErrorController.coffee

@@ -28,3 +28,11 @@ module.exports = ErrorController =
 		else
 			logger.error err: error, url:req.url, method:req.method, user:user, "error passed to top level next middlewear"
 			ErrorController.serverError req, res
+
+	handleApiError: (error, req, res, next) ->
+		if error instanceof Errors.NotFoundError
+			logger.warn {err: error, url: req.url}, "not found error"
+			res.sendStatus(404)
+		else
+			logger.error err: error, url:req.url, method:req.method, user:user, "error passed to top level next middlewear"
+			res.sendStatus(500)

services/web/app/coffee/infrastructure/Server.coffee

@@ -164,11 +164,12 @@ server = require('http').createServer(app)
 # process api routes first, if nothing matched fall though and use
 # web middlewear + routes
 app.use(apiRouter)
+app.use(ErrorController.handleApiError)
 app.use(webRouter)
+app.use(ErrorController.handleError)
 
 router = new Router(webRouter, apiRouter)
 
-app.use ErrorController.handleError
 
 module.exports =
 	app: app