Skip to content

Latest commit

 

History

History
60 lines (45 loc) · 2.87 KB

03-flask-intro.md

File metadata and controls

60 lines (45 loc) · 2.87 KB
Raw

5.3 Web services: introduction to Flask

Slides

Links

Notes

In this session we talked about what is a web service and how to create a simple web service.

  • What is actually a web service
    • A web service is a method used to communicate between electronic devices.
    • There are some methods in web services we can use it to satisfy our problems. Here below we would list some.
      • GET: GET is a method used to retrieve files, For example whene we are searching for a cat image in google we are actually requesting cat images with GET method.
      • POST: POST is the second common method used in web services. For example in a sign up process, when we are submiting our name, username, passwords, etc we are posting our data to a server that is using the web service. (Note that there is no specification where the data goes)
      • PUT: PUT is same as POST but we are specifying where the data is going to.
      • DELETE: DELETE is a method that is used to request to delete some data from the server.
      • For more information just google the HTTP methods, You'll find useful information about this.
  • To create a simple web service, there are plenty libraries available in every language. Here we would like to introduce Flask library in python.
    • If you haven't install the library just try installing it with the pip install Flask
    • To create a simple web service just run the code below:
    • from flask import Flask
app = Flask('churn-app') # give an identity to your web service
@app.route('/ping',methods=[GET])
def ping():
    return 'PONG'

if __name__=='__main__':
   app.run('debug=True, host='0.0.0.0', port=9696) # run the code in local machine with the debugging mode true and port 9696
    • With the code above we made a simple web server and created a route named ping that would send pong string.
    • to test it just open your browser and search localhost:9696/ping, You'll see that the 'PONG' string is received. Congrats You've made a simple web server 🥳.
  • To use our web server to predict new values we must modify it. See how in the next session.

Add notes from the video (PRs are welcome)

⚠️ The notes are written by the community.
If you see an error here, please create a PR with a fix.

Nagivation