URL-Shortener Application

Flask-Jinja-Gunicorn

1. Create a project required environment
2. Install a pipenv

   pip3 install pipenv
   

3. To create virtual env for project

   pipenv install 
   

Note: it will Creating a virtualenv for this project… and it will create the pipfile.lock for [dev-packages] and [packages].

4. To activate this project's virtualenv, run

   pipenv shell
   

5. Create project in flask and install

   pipenv install flask
   

6. Go to the your virtualenv in command prompt for windows

   set FLASK_APP=urlshort
   

   Note: Go to the your virtualenv in terminal for windows

   export FLASK_APP=urlshort
   

7. Run the flask app

   flask run
   

8. How to move on to the flask app to production to development in command prompt

   set FLASK_ENV=development
   

9. Then run app

   flask run
   

Web server gateway interface (WSGI)

Protocol for python application in order to server websites unified order.

Deploying the application into ubuntu Servers

1. First upload code to server

   sudo git clone https://github.com/sada498/url-shortener.git
   

2. Move into the directory

   cd url-shorener
   

3. Install pipenv

   sudo apt install python3-pippip
   

   pip3 install pipenev
   

   pipenv shell
   

   export FlASK_APP=urlshort  
   

   (Note: I use export because of Linux terminal )

   flask run
   

4. After that make your application public

   flask run –host=0.0.0.0
   

5. Visit the server public ip with port id

   Ip:portnumber
   

How to integrate Flask with Gunicorn

1. Install Gunicorn on same server

   pipenv install gunicorn
   

2. Running with Gunicorn

   gunicorn “urlshort:create_app()” -b 0.0.0.0 
   

3. Recommend to run flask on nginx (to install on Linux )

   sudo apt install nginx 
   

4. To check the nginx running on server

   systemctl status nginx
   

   Note: check the Status check Active

5. To fix the configuration of the file to enable the app in nginx

   sudo nano /etc/ninx/sites-enabled/default
   

6. Past the following code on the configuration file check the both server and location

   server {
   listen 80;
   server_name example.org;
   access_log  /var/log/nginx/example.log;
   
   location / {
       proxy_pass http://127.0.0.1:8000;
       proxy_set_header Host $host;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
    }
   

7. After setting up the above code into config file

   Ctrl +x ( exit )
   

8. Run the gunicorn all the time

   gunicorn “urlshort:create_app( ) ” -b 0.0.0.0 --daemon 
   

9. Upload files to correct location on server according to our app.

   nano urlshort/urlshort.py
   

10. Change the file location to where do you want to save the static files on your server

Thanks :) Nick Walter