created: 20180409142128584
modified: 20180409142128584
tags: HookMechanism
title: Hook: th-server-command-post-start
type: text/vnd.tiddlywiki

This hook allows plugins to extend the TiddlyWiki server command after it initializes. The two 
most obvious use cases are adding routes (such as an attachments folder for external files) 
to the SimpleServer instance and adding a websockets handler to the HTTP server. 

Hook function parameters: 

* SimpleServer instance
** Defined in core/modules/commands/server.js
* NodeJS HTTP Server instance
** See the NodeJS docs at [ext[https://nodejs.org/docs/latest-v8.x/api/http.html#http_class_http_server]]
* Name of server invoking this hook (for special handling of the NodeJS HTTP server instance argument). 
** Current known values: `tiddlywiki`, `tiddlyserver`. 

Return value is ignored.