* Deprecate postgraphile usage * Change endpoint in watcher config * Remove subscription queries from eth-client * Remove postgraphile config and client from watchers Co-authored-by: nabarun <nabarun@deepstacksoft.com>
* Invoke handlers based on watcher-ts events * Read subgraph yaml and listen to events from watcher-ts * Create GraphWatcher class to use in generated example contract watcher * Call graph-node event handler from generated watcher