Merge pull request #3915 from Parth20GitHub/flask-heroku

Flask heroku

Author: ajay-dhangar

docs/Flask/11-Flask app on Heroku.md

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+---
+id: Deploy Python Flask App on Heroku
+title: how to deploy a flask app on Heroku
+sidebar_label: Flask App on Heroku
+sidebar_position: 11
+tags: [flask, python, heroku ]
+description: In this tutorial, you will learn about deployment offlask app on Heroku.
+---
+
+ Flask is based on the Werkzeug WSGI toolkit and Jinja2 template engine. Both are Pocco projects. This article revolves around how to deploy a flask app on Heroku. To demonstrate this, we are first going to create a sample application for a better understanding of the process. 
+
+The Prerequisites are-
+1.Python
+2.pip
+3.Heroku CLI
+4.Git
+
+### Deploying Flask App on Heroku
+
+Let’s create a simple flask application first and then it can be deployed to heroku. Create a folder named “eflask” and open the command line and cd inside the “eflask” directory. Follow the following steps to create the sample application for this tutorial.
+
+ # STEP 1 :
+  Create a virtual environment with pipenv and install Flask and Gunicorn .
+
+ # STEP 2 : 
+ Create a “Procfile” and write the following code. 
+
+ # STEP 3 :
+  Create “runtime.txt” and write the following code.
+
+ # STEP 4 : 
+ Create a folder named “app” and enter the folder
+
+ # STEP 5 : 
+ Create a python file, “main.py” and enter the sample code.
+
+ # STEP 6 :
+ Get back to the previous directory “eflask”.Create a file“wsgi.py” and insert the following code.
+
+ # STEP 7 :
+  Run the virtual environment.
+
+# STEP 8 :
+ Initialize an empty repo, add the files in the repo and commit all the changes.
+
+# STEP 9 : 
+Login to heroku CLI 
+
+# STEP 10 : 
+Push your code from local to the heroku remote.