Fetch data from an API and build a 2-dimensional list with some of the attributes, appl...

Fetch data from an API and build a 2-dimensional list with some of the attributes, applying data transformations.

Asked in the first round stage. Python question in the Senior DE first round.

Implement build_attribute_matrix(records). The input is a decoded API response: a list of dictionaries containing id, displayName, status, and tags. Return one list per record in the original order, with columns [id, uppercase_display_name, active_flag, tag_count]. Strip surrounding whitespace from displayName, convert it to uppercase, map status "active" to True and every other status to False, and count the tags list.

Constraints

0 <= len(records) <= 10^5
Every record contains id, displayName, status, and tags
tags is always a list
Do not mutate records or any nested input value

Function Signature

def build_attribute_matrix(records):

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Problem

Fetch data from an API and build a 2-dimensional list with some of the attributes, applying data transformations.

Asked in the first round stage. Python question in the Senior DE first round.

Constraints

0 <= len(records) <= 10^5
Every record contains id, displayName, status, and tags
tags is always a list
Do not mutate records or any nested input value

Function Signature

def build_attribute_matrix(records):

Your question is Fetch data from an API and build a 2-dimensional list with some of the attributes, appl.... Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.