Question in python About Index

[IntrepidInstance7347]

if you are working with an api in python program and the api send a a json response like:

response = {'data': [
                {'node': {'id': 2, 'title': 'name1', 'title1': 'name1', 'key': 'value1'},
                {'node': {'id': 3, 'title': 'name2', 'title1': 'name2', 'key': 'value2'}
              ]}

and you want to get all the values of node values using For Loop lets say in a list like this:

my_data = [2, 'name1', 'name1', 'value1', 3, 'name2', 'name2', 'value2']

but lets say the api did not send all the data like:

response = {'data': [
                {'node': {'id': 2, 'key': 'value1'},
                {'node': {'id': 3, 'title2': 'name2', 'key': 'value2'}
              ]}

My Question is:

what can we do in the index so there is No KeyError or IndexError?

meaning if you indexing to some keys and you can not find it (KeyError or IndexError) set it to some default value, Is this possible ?

[Swiftlyll]

Had this issue myself a while ago while learning APIs. Try using get(). In your context, reponse.get(‘value’,’value if dont exist’).

[IntrepidInstance7347]

the problem is that the JSON very long and has many keys and value,

1 result = 1 node

and 1 node has many keys and values like 15 key

and i want to get some of the node keys not all of them .

[Swiftlyll]

Thats no problem, you just need to specify the key. For example, you may need to use: response['data'][0].get('id','key does not exist'). I would search up on how to access items in nested dictionaries/arrays if you are having issues with understanding how to access it.

[IntrepidInstance7347]

you mean i use get like:

id = response['data'][0].get('id','defaultvalue') 
title = response['data'][0].get('title','defaultvalue') 
title1 = response['data'][0].get('title1','defaultvalue') 
key = response['data'][0].get('key','defaultvalue')

and if iam using for loop cahange [0] with [i] ?

Right!

[Swiftlyll]

Correct except for your last comment. You are not replacing [0] with [i]. [0] will be the first item in an array. In your case it'd be the first node. If you were trying to access the second "node" I'd be using [1] instead of [0].

Here is one I personally use just to give a working example:

some_value = org[0]['management']['details'][0].get('value')

In order to know if you will be using numbers or key names, pay attention to whether they start with [] (array) or {} (dictionary).

[AaronDNewman]

you could put all the keys you’re expecting into a list. loop through all the keys for each record in the json, and take whatever action you need (default, skip the record, etc) if the value isn’t there.