Pass JS output into a DB via Flask

Question

I am writing a website that has to display the IP and Location of 10 most recent users and store all the visits in a database. The website has to be coded in Flask and HTML/CSS/JS. I have already written a script that does ipLookup() in my .js file, but now I am having trouble with passing the JS data into my python flask app so that I can add it to my database.

Overall, how do I pass JS script output into Python Flask?
TIA

EDIT: thank you for your quick responses they really helped and guided me to a solution. For future ref I recommend this article tho: https://scotch.io/bar-talk/processing-incoming-request-data-in-flask

AKX · Accepted Answer · 2020-06-04 09:39:18Z

2

You'd POST the data from your JavaScript code to a Flask view, which can then do things with it. Using the Fetch API,

const myIp = ipLookup();
fetch('/save-ip', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ip: myIp}),
}).then(r => {
  console.log(r);
}).catch(e => {
  alert('Error: ' + e);
});

and something like

@app.post("/save-ip")
def save_ip():
  data = request.get_json())
  print(data)
  # ... save ...

answered Jun 4, 2020 at 9:39

AKX

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