Python - Parsing JSON formatted text file with regex

Question

I have a text file formatted like a JSON file however everything is on a single line (could be a MongoDB File). Could someone please point me in the direction of how I could

Answer 1

How about using positive lookahead and lookbehind:

(?<=\"fileAssetId\":\")[a-fA-F0-9-]+?(?=\")

captures the fileAssetId and

(?<=\"filename\":\").+?(?=\")

matches the filename.

For a detailed explanation of the regex have a look at the Regex101-Example. (Note: I combined both in the example with an OR-Operator | to show both matches at once)

To get a list of all matches use re.findall or re.finditer instead of re.match.

re.findall(pattern, string) returns a list of matching strings.

re.finditer(pattern, string) returns an iterator with the objects.