Let’s fire up the application locally
Make sure that you’re in the test_app folder. You can type
pwd (print working directory) in the terminal to see what folder you are in.
Type this in the terminal:
This will print some stuff and stay running forever, printing more stuff every time you visit a page in your app.
Compiled web/views/topic_view.ex [info] Running TestApp.Endpoint with Cowboy using http on port 4000 11 Sep 17:57:34 - info: compiled 5 files into 2 files, copied 3 in 1.2 sec
Point your web browser to http://localhost:4000 See your web app actually running!
While the server is running, whatever you type in that terminal tab will be ignored.
To get back to the terminal, you can stop the server by typing Control-c twice.
mix phoenix.server ran your application locally just like Heroku will be running it on their servers.
This provides a very simple means to see your changes before you commit and push them to Heroku.
Control-c is a way of closing or cancelling terminal programs. Since the phoenix server runs forever, you need to interrupt it with Control-c.
Go on to Creating a Migration.
Go back to Create a Phoenix App.