How to use data from an API, to create an alert?

[PopFendi]

So, are you saying the correct method would be to search for all of the 'sub' and 'com' values first, before trying to search for a keyword within them?

No was just demo how these libraries can help with a large nested return like this.
Not look at more precise what you want(describe it better),doge as you talk about look just like a plain text and not a key in the nested dictionary.

Sorry, let me clarify.

'Doge' is the string I am trying to search for within the values of 'com' and 'sub'. If the 'Doge' string is found, I want it to return the value of 'no' (ie. the thread number) Perhaps my latest attempt might help to illustrate what I mean.

import requests
import json

response = requests.get('https://a.4cdn.org/biz/catalog.json')
catalog = json.loads(response.text)

for page in catalog:
    thread = page['threads']
    for threads in thread:
        no = threads["no"]
        word = "doge"
        try:
            sub = threads["sub"]
            for value in sub:
                if word in value:
                    print(no)
        except:
            pass

        try:
            com = threads["com"]
            for value in com:
                if word in value:
                    print(no)
        except:
            continue

I've added the try / except because some threads do not contain either a 'com' or a 'sub' key, and I was getting a traceback.

Hope that makes sense,
Thank you!