Here is the logs,
event=SUCCESS_FROM_SERVICE UserID=abc currentTime=2017-03-31T05:22:52.176Z headline="[{'contentUUID':'10a1f2a2-1489-11e7-b0c1-37e417ee6c76','title':'South Africa's Zuma embarks on a game of chicken with markets'},{'contentUUID':'6961129e-14fa-11e7-80f4-13e067d5072c','title':'Race for speed among algo traders hits peak'}]"
I am able to extract the values of first 'contentUUID' and first 'title' by the search command below whereas I'm unable to get the 2nd set of values. The search I'm adding is,
search index=heroku sourcetype=heroku:drain source=/var/log/apps/heroku/cont-acc-tkn-ui.log event=SUCCESS_FROM_SERVICE | rex max_match=10 field=_raw "'contentUUID':'(?P[^']+)" | rex max_match=10 field=_raw "'title':'(?P
You would be getting a multivalued fields. Are you sure you're not able to extract second set? Do you see both values if your add | table contentUUID title
at the end of your current search.
Try this
| rex max_match=10 field=_raw "\'title\':\'(?P<mytitle>[^\}]*)\'(?=\})"
Please remember to mark your code with the code button (101 010) so that the html-like tags won't be treated as formatting by the web interface.