# Converting string field to integer
**URL:** https://discuss.elastic.co/t/converting-string-field-to-integer/53853
**Category:** Logstash
**Created:** [June 24, 2016, 6:15am UTC](https://discuss.elastic.co/t/converting-string-field-to-integer/53853 "2016-06-24T06:15:46Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Gaurav\_SK](https://discuss.elastic.co/u/Gaurav_SK)
#### Post date: [June 24, 2016, 6:15am UTC](https://discuss.elastic.co/t/converting-string-field-to-integer/53853/1 "2016-06-24T06:15:46Z")
I am getting the value of a field name "fcs" through pattern but i want this to be in integer format, but when i open settings in kibana, it says this field has string type. Can anyone tell how to resolve this issue ?
Pattern =\>
%{DATA}fcs-errors-stat%{DATA}%{SPACE}uint64\_value: %{NUMBER:fcs:int}
my input =\>
fields {
name: "fcs-errors-stat"
fields {
name: "data"
uint64\_value: 0
}
---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [June 25, 2016, 8:50pm UTC](https://discuss.elastic.co/t/converting-string-field-to-integer/53853/2 "2016-06-25T20:50:45Z")
Check the mapping of the field in ES, you may either need to use a mutate + convert to be sure, or map the field in ES with a template.
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### Author:  [@Gaurav\_SK](https://discuss.elastic.co/u/Gaurav_SK)
#### Post date: [June 27, 2016, 11:12am UTC](https://discuss.elastic.co/t/converting-string-field-to-integer/53853/3 "2016-06-27T11:12:11Z")
Thanks, I actually need to create another new index. It couldn't update type for previous indexes.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 4:50am UTC](https://discuss.elastic.co/t/converting-string-field-to-integer/53853/4 "2017-07-06T04:50:48Z")