Need for syntax and semantix - GROK filter

Hi All,

I would like to grep the below numeric value before the keyword "DEBUG" from the message field and map it to a new field called OrderID. Kindly let us know the pattern we can apply in order to achieve this context.

message : 375 DEBUG
message : 428 DEBUG
message : 311 DEBUG
message : 580 DEBUG

Expected Output:

OrderID: 375
OrderID: 428
OrderID: 311
OrderID: 580


Isn't that a #elastic-stack:logstash question? Or are you using runtime fields?

Thx & Best,
BTW: In Kibana you can use the grok debugger for that : Debug grok expressions | Kibana Guide [8.0] | Elastic

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