Hello Really Tiny Flask App for Heroku

This repo is an abridged, updated, somewhat simpler version of this guide to getting a web app published on Heroku:

http://www.compjour.org/lessons/flask-single-page/hello-tiny-flask-app/

You can see a live-version here:

homepage: https://compjour-2017-danfoo.herokuapp.com/

hello/ endpoint: https://compjour-2017-danfoo.herokuapp.com/hello/Stanford-loremipsum

cage/ endpoint: https://compjour-2017-danfoo.herokuapp.com/cage/600/200

Assumes you have:

1. Installed Python 3.x via Anaconda on your computer, which should include Flask, among other things.

2. Created a Heroku account

3. Have Git installed (which you probably do if you installed the Github Desktop app at some point)

4. Install the gunicorn web server library by running at your Terminal:

    $ pip install gunicorn
   

Steps

Getting started with Heroku

1. Install the Heroku CLI

2. At your Terminal, run:

   $ heroku login

3. Go to this page on the Heroku website to make a new app: https://dashboard.heroku.com/new-app

Create a new project folder/Git repository

The example below pretends that your app on Heroku is named: compjour-2017-danfoo

1. Make a new directory in your own computer. It can be called anything, doesn't have to be what you named it on Heroku, e.g. my-heroku-foo
2. Change into that directory from the command line, then run git init
3. Then run: heroku git:remote -a compjour-2017-danfoo. This command points your local folder to the repo (remote folder) that Heroku uses to read code and deploy its app.

Copying this app code

You'll need the following files that are in this repo (of which the README you're reading right now):

├── Procfile
├── app.py
├── .gitignore
├── requirements.txt
└── runfile.txt

Create those files manually. Copy the contents.

Then run these shell commands:

1. Run git add .
2. Run git commit -m 'first'
3. Run git push heroku master

The above steps are the bare-bones way to get a trivial "web app" onto the Heroku service. Check out the fuller guide here, which covers more about what a Flask app/web app is:

http://www.compjour.org/lessons/flask-single-page/hello-tiny-flask-app/

Example student app

via Reade Levinson:

https://sleepy-woodland-12710.herokuapp.com/

The repo for the code: https://github.com/readelev/final-app