diff --git a/lib/router/router.js b/lib/router/router.js
index 9c415ec..5a4e2db 100644
--- a/lib/router/router.js
+++ b/lib/router/router.js
@@ -86,7 +86,10 @@ Router.prototype = {
 
 		// build outputter
 		var outputter = this.buildOutputter(req.headers.accept, function(err) {
-			//TODO error code, terminate resp
+			logger.error(err);
+			resp.writeHead(500, 'outputter failure');
+			resp.write(err.message);
+			resp.end();
 		});
 
 		logger.debug('outputter: ' + outputter);
@@ -94,10 +97,12 @@ Router.prototype = {
 		var url = require('url').parse(req.url, true);
 		// TODO sanitize url.pathname
 		this.buildEndpoint(url.pathname, function(err, endpoint) {
-			//TODO err
 			if (err) {
 				logger.error(err);
-				// TODO write error in response
+				resp.writeHead(404, 'no endpoint for ' + url.pathname);
+				resp.write(err.message);
+				resp.end();
+				return;
 			}
 			endpoint.buildAction(req.method, url, function(err, action) {
 				//TODO err