# Apply Grok to a log file
**URL:** https://discuss.elastic.co/t/apply-grok-to-a-log-file/273979
**Category:** Logstash
**Created:** [May 25, 2021, 5:56pm UTC](https://discuss.elastic.co/t/apply-grok-to-a-log-file/273979 "2021-05-25T17:56:04Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Denilson-Semedo](https://discuss.elastic.co/u/Denilson-Semedo)
#### Post date: [May 25, 2021, 5:56pm UTC](https://discuss.elastic.co/t/apply-grok-to-a-log-file/273979/1 "2021-05-25T17:56:05Z")
I have thease following logs:
```
{"type":"audit_entry","created":"5/20/2021, 11:12:42 PM","colaborador_id":"cf7dc62b-dde9-4980-89d8-96eb5707876e","ip":"192.168.112.6","request_method":"PUT","ajax":false,"route":"/stock/artigos/8c443bfe-d077-46d2-805b-948c15534f2c","protocol":"https"}
{"type":"audit_javascript","created":"5/20/2021, 11:12:42 PM","colaborador_id":"cf7dc62b-dde9-4980-89d8-96eb5707876e","origin":"/stock/artigos/8c443bfe-d077-46d2-805b-948c15534f2c","message":"SUCCESS"}
{"type":"audit_entry","created":"5/20/2021, 11:17:30 PM","colaborador_id":"cf7dc62b-dde9-4980-89d8-96eb5707876e","ip":"192.168.112.6","request_method":"PUT","ajax":false,"route":"/stock/artigos/e7fd6fb0-668a-4285-a78e-1c3e2f8ebba4","protocol":"https"}
{"type":"audit_javascript","created":"5/20/2021, 11:17:30 PM","colaborador_id":"cf7dc62b-dde9-4980-89d8-96eb5707876e","origin":"/stock/artigos/e7fd6fb0-668a-4285-a78e-1c3e2f8ebba4","message":"SUCCESS"}
{"type":"audit_entry","created":"5/21/2021, 8:31:00 AM","colaborador_id":"9b3b665d-5c95-4a4b-9ace-a140b1ea9259","ip":"192.168.112.6","request_method":"PUT","ajax":false,"route":"/relacionamento/agendamento/c3058ae8-3c55-45ac-b184-72470b3e1299","protocol":"https"}
```
How I can use GROK in this case?
It seems like it's not possible to apply grok to this
---
### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [May 25, 2021, 6:04pm UTC](https://discuss.elastic.co/t/apply-grok-to-a-log-file/273979/2 "2021-05-25T18:04:20Z")
Why would you want to use a grok filter instead of a json filter?
---
### Author:  [@Denilson-Semedo](https://discuss.elastic.co/u/Denilson-Semedo)
#### Post date: [May 25, 2021, 8:23pm UTC](https://discuss.elastic.co/t/apply-grok-to-a-log-file/273979/3 "2021-05-25T20:23:40Z")
Sorry, I'm new in the elastic "world" so I didn't know about the existence of the json filter. know it seems is json filter is the solution. thanks for that!
By the way, it is possible to apply grok in this situation?
---
### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [May 25, 2021, 8:49pm UTC](https://discuss.elastic.co/t/apply-grok-to-a-log-file/273979/4 "2021-05-25T20:49:51Z")
> [@Denilson-Semedo](#):
>
> it is possible to apply grok in this situation?
It is always possible, but not always useful.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [June 22, 2021, 8:50pm UTC](https://discuss.elastic.co/t/apply-grok-to-a-log-file/273979/5 "2021-06-22T20:50:19Z")
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