# Kafka String Deserializer with Logstash
**URL:** https://discuss.elastic.co/t/kafka-string-deserializer-with-logstash/247693
**Category:** Logstash
**Created:** [September 7, 2020, 3:03am UTC](https://discuss.elastic.co/t/kafka-string-deserializer-with-logstash/247693 "2020-09-07T03:03:10Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@phucsnguyenv](https://discuss.elastic.co/u/phucsnguyenv)
#### Post date: [September 7, 2020, 3:03am UTC](https://discuss.elastic.co/t/kafka-string-deserializer-with-logstash/247693/1 "2020-09-07T03:03:10Z")
Hi everyone
I am getting a problem on pushing data from Kafka to Logstash and getting following problem.
first, my data type is JSON file, original data
`{"key":"value"}`
I configured Kafka filesystem source connect to read JSON data and use following converters
**value.converter=org.apache.kafka.connect.storage.StringConverter
key.converter=org.apache.kafka.connect.storage.StringConverter**
The message stored in Kafka
`Struct{value={"key":"value"}}`
Now on Logstash I want to decode the serialized data to original data and use json plugin to parse the data.
Could you please suggest me the best approach?
Thanks so much.
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### Author:  [@phucsnguyenv](https://discuss.elastic.co/u/phucsnguyenv)
#### Post date: [September 9, 2020, 1:35am UTC](https://discuss.elastic.co/t/kafka-string-deserializer-with-logstash/247693/2 "2020-09-09T01:35:40Z")
Hi, anyone can help?
Thanks
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 7, 2020, 1:35am UTC](https://discuss.elastic.co/t/kafka-string-deserializer-with-logstash/247693/3 "2020-10-07T01:35:53Z")
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