Capturing specific fields on a long string [closed]

Answer 1

The below regex will capture all the id's if your language supports \K.

\"id":\"\K([^"]*)

DEMO

Explanation:

\"id":\"    #  Matches "id":"

\K          #  Used to discard the previous matches. So "id":" got discarded.

([^"]*)     #  Matches all the characters except " zero or more times.

Answer 2

If you have to do it in regex and you have access to that data in the string presented, this matches your IDs:

(?<="id":")[^"]*(?=")

See demo

• The lookbehind (?<="id":") asserts that we are preceded by "id":"
• The negative character class [^"]* matches the ID: any characters that are not a double quote
• The lookahead (?=") asserts that what follows is a double quote