# How to parse message with random data using logstash filter? **URL:** \ **Category:** Logstash\ **Created:** [January 24, 2020, 3:30pm UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453 "2020-01-24T15:30:18Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Amit\_Agarwal1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_agarwal1/32/57302_2.png) [@Amit\_Agarwal1](https://discuss.elastic.co/u/Amit_Agarwal1)\ **Post date:** [January 24, 2020, 3:30pm UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/1 "2020-01-24T15:30:18Z")
I have received the below message from the producer at Axon Topic with some random ASCII data. "message" =\> "\u0000\u0000\u0000\u0002�\u0004C1�\u0001\u0002�\u0003\u0000\u0000\u0000\u0000A�\u0003{"prdctId":"10077","id":"10077","name":"ComPass","owner":{"id":"E040547","name":"Shashi Raghunandan"},"alias":[{"id":"a1Id","name":"a1Name"},{"id":"a2Id","name":"a2Name"}],"cntryAvail":["n/a"]}�����[\u0002\u0000\u0002\u0000" I have tried split filter on open curly braces '{' to take out the outer json data from the message. mutate { split =\> ["message", "{"] add\_field =\> { "splitmsg" =\> "%{[message][0]}" } add\_field =\> { "msg" =\> "%{[message][1]}" } } but then we get the splitted messages from the message field, which seems not a correct way to do it as after that we got the message in below format. {"prdctId":"10077","id":"10077","name":"ComPass","owner":{"id":"E040547","name":"Shashi Raghunandan"},"alias":[{"id":"a1Id","name":"a1Name"},{"id":"a2Id","name":"a2Name"}],"cntryAvail":["n/a"]} Now, I'm not able to remove backslashes from the message. Please suggest the filter to be applied in such a way to have the output as json from above message into inline format. {"prdctId":"10077","id":"10077","name":"ComPass","owner":{"id":"E040547","name":"Shashi Raghunandan"},"alias":[{"id":"a1Id","name":"a1Name"},{"id":"a2Id","name":"a2Name"}],"cntryAvail":["n/a"]} ---
**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\ **Post date:** [January 24, 2020, 5:14pm UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/2 "2020-01-24T17:14:40Z")
You could try something like ``` mutate { gsub => ["message", "^[^{]+", "", "message", "}[^}]+$", "" ] } ``` which would remove everything before the first { and everything after the last }. ---
**Author:** ![Amit\_Agarwal1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_agarwal1/32/57302_2.png) [@Amit\_Agarwal1](https://discuss.elastic.co/u/Amit_Agarwal1)\ **Post date:** [January 26, 2020, 7:34pm UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/3 "2020-01-26T19:34:23Z")
After trying above filter, got message as given below. ``` { "_index" : "test-product-logstash-22", "_type" : "_doc", "_id" : "%{id}", "_score" : 1.0, "_source" : { "message" : "{\"prdctId\":\"10077\",\"id\":\"10077\",\"name\":\"ComPass\",\"status\":\"In Development\",\"family\":\"Strategic Growth\",\"line\":\"Strategic Growth\",\"shortDesc\":\"Enables interoperable digital IDs\",\"longDesc\":\"A platform that enables interoperable digital ID's and other capabilities \",\"owner\":{\"id\":\"E040547\",\"name\":\"Shashi Raghunandan\"},\"program\":{\"id\":\"422\",\"name\":\"Regional Solutions and Bundles\"},\"alias\":[{\"id\":\"a1Id\",\"name\":\"a1Name\"},{\"id\":\"a2Id\",\"name\":\"a2Name\"}],\"regAvail\":[\"ap\",\"lac\",\"mea\"],\"cntryAvail\":[\"Global\"],\"salesCenterUrl\":\"salesCenterUrlsfsfd\",\"isActive\":\"true\"", "@version" : "1", "@timestamp" : "2020-01-26T19:17:49.977Z" } } ``` But, I wanted to get the message in json format as output. { "\_index" : "test-product-logstash-22", "\_type" : "\_doc", "\_id" : "10066", "\_score" : 1.0, "\_source" : { "id" : "10066", "prdctId" : "10066", "name" : "ComPass", "status" : "In Development", "family" : "Strategic Growth", "line" : "Strategic Growth", "shortDesc" : "providers", "longDesc" : "population", "owner" : { "id" : "E040547", "name" : "Shashi " }, "program" : { "id" : "422", "name" : "Regional Solutions and Bundles" }, "alias" : [ { "id" : "995c5dbd-97ee-46bb-b0d8-3e83a097762b", "name" : "Community Pass" } ], "regAvail" : [ "ap", "lac", "mea" ], "cntryAvail" : [ "n/a" ], "salesCenterUrl" : "n/a", "isActive" : "true" } } Please suggest the filter needed to be applied to get the output in json format as shown above. ---
**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\ **Post date:** [January 26, 2020, 9:10pm UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/4 "2020-01-26T21:10:39Z")
Use a json filter. ``` json { source => "message" } ``` ---
**Author:** ![Amit\_Agarwal1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_agarwal1/32/57302_2.png) [@Amit\_Agarwal1](https://discuss.elastic.co/u/Amit_Agarwal1)\ **Post date:** [January 27, 2020, 5:46am UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/5 "2020-01-27T05:46:11Z")
Please have a look at the output received after applying json filter on message. { "message" =\> "{"prdctId":"10077","id":"10077","name":"ComPass","status":"In Development","family":"Strategic Growth","line":"Strategic Growth","shortDesc":"Enables interoperable digital IDs","longDesc":"A platform that enables interoperable digital ID's and other capabilities ","owner":{"id":"E040547","name":"Shashi Raghunandan"},"program":{"id":"422","name":"Regional Solutions and Bundles"},"alias":[{"id":"a1Id","name":"a1Name"},{"id":"a2Id","name":"a2Name"}],"regAvail":["ap","lac","mea"],"cntryAvail":["Global"],"salesCenterUrl":"salesCenterUrlsfsfd","isActive":"true"", "tags" =\> [ [0] "\_jsonparsefailure" ] } Please suggest. ---
**Author:** ![Amit\_Agarwal1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_agarwal1/32/57302_2.png) [@Amit\_Agarwal1](https://discuss.elastic.co/u/Amit_Agarwal1)\ **Post date:** [January 27, 2020, 6:45am UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/6 "2020-01-27T06:45:41Z")
Tried the below filter but then missing } at the end which hence not making message structure as json. mutate { gsub =\> ["message", "^[^{]+", "", "message", "}[^}]+$", "" ] } ---
**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\ **Post date:** [January 27, 2020, 2:33pm UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/7 "2020-01-27T14:33:22Z")
> [@Amit\_Agarwal1](#): > > mutate { gsub =\> ["message", "\[1\]+", "", "message", "}[^}]+$", "" ] } Try ``` mutate { gsub => ["message", "^[^{]+", "", "message", "[^}]+$", "" ] } ``` * * * 1. ^{ ---
**Author:** ![Amit\_Agarwal1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_agarwal1/32/57302_2.png) [@Amit\_Agarwal1](https://discuss.elastic.co/u/Amit_Agarwal1)\ **Post date:** [January 30, 2020, 5:59am UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/8 "2020-01-30T05:59:22Z")
Thanks a lot. It's working fine now. After putting json filter, getting the proper structured message in output. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 27, 2020, 5:59am UTC](https://discuss.elastic.co/t/how-to-parse-message-with-random-data-using-logstash-filter/216453/9 "2020-02-27T05:59:23Z")
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