Hey all. I'm trying to create a GROK pattern on a longer text message to break it into several fields. The error I'm having is when I try to make a field of a specific set of numbers from a larger set of numbers.
For simplicity's sake, here's an example:
Say I have "123456789". I want to return a value of "12345".
The above works in Grok debugger.
However, when I try to add it as a Grok processor I get an "Invalid JSON string".
I'm new to using Grok patterns and haven't been able to track down the specific syntax error I'm making and why there would be a difference in Grok debugger and using it in a pipeline