Improve errors

index.js

@@ -28,7 +28,12 @@ app.get( '/', function( req, res ) {
 app.post( '/log', function( req, res ) {
 	// Don't bother if there's nothing to record
 	if ( 'undefined' === typeof req.body || 'undefined' === typeof req.body.text || ! req.body.text.length ) {
-		return res.sendStatus( 400 );
+		var response = {
+			"response_type": "ephemeral",
+			"text": "Please provide something to record."
+		};
+
+		return res.status( 400 ).send( response );
 	}
 
 	// Limit who can trigger the command
@@ -38,7 +43,7 @@ app.post( '/log', function( req, res ) {
 			"text": "Sorry, you can't record completed tasks."
 		};
 
-		return res.send( response );
+		return res.status( 403 ).send( response );
 	}
 
 	// Massage the title