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https://github.com/sandeepkv93/python-flask-sample-app
Starter code for Python Flask and Deployment in Heroku
https://github.com/sandeepkv93/python-flask-sample-app
flask herokuapp procfile python-3
Last synced: about 2 months ago
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Starter code for Python Flask and Deployment in Heroku
- Host: GitHub
- URL: https://github.com/sandeepkv93/python-flask-sample-app
- Owner: sandeepkv93
- Created: 2018-11-27T00:35:22.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2022-04-21T23:05:21.000Z (over 2 years ago)
- Last Synced: 2024-04-17T18:03:39.994Z (9 months ago)
- Topics: flask, herokuapp, procfile, python-3
- Language: Python
- Homepage: https://flaskdemobasic.herokuapp.com
- Size: 4.88 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Creating Flask App and deploying it in Heroku
## Live Demo - https://flaskdemobasic.herokuapp.com
## Create a Flask App
1. Create a virtual environment
- In Windows
```shell
virtualenv env
cd env\Scripts
.\activate
```
- In Linux/Mac
```shell
virtualenv env
source env/bin/activate
```
2. Install Flask Module
```shell
pip install Flask --upgrade
```
3. Create a .gitignore file and add the following lines
```
__pycache__/
*.py[cod]
.vscode
env/
```
3. Sample Flask app which returns current Date
```python
from flask import Flask
from datetime import datetime
app = Flask(__name__)
@app.route('/')
def func():
return str(datetime.now())
if __name__ == '__main__':
app.run()
```
4. Run the app
```shell
python app.py
```
When you goto http://localhost:5000/ you should be able to see current date and time.
## Deploying this app in Heroku
1. Create a new file and name it as **Procfile** in the project's root folder and add the following text
```
web: gunicorn app:app
```
2. Add **guicorn** module and other installed modules to requirements.txt
```shell
pip install gunicorn --upgrade
pip freeze > requirements.txt
```
3. Specify a python runtime. Example: python-3.6.2
- Create a file called **runtime.txt** in the project's root folder and add the following text
```
python-3.6.2
```
4. Create a heroku app
```shell
heroku create flaskdemoapp
```
5. Initialize git and add remote as heroku
```shell
git init
git remote add prod [email protected]:flaskdemoapp.git
```
6. Commit and push
```shell
git add .
git commit -m "Your message"
git push -u prod master
```
7. Incase if you had not added public key, then
```shell
heroku login #Username & Password
heroku keys:add ~/.ssh/id_rsa.pub
```