# Basic string manipulation

**URL:** <https://forum.serverless.com/t/basic-string-manipulation/5450>\
**Category:** Serverless Framework\
**Created:** [August 15, 2018, 4:26am UTC](https://forum.serverless.com/t/basic-string-manipulation/5450 "2018-08-15T04:26:10Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![wanderingwalrus](https://avatars.discourse-cdn.com/v4/letter/w/e0b2c6/32.png) [@wanderingwalrus](https://forum.serverless.com/u/wanderingwalrus)\
**Post date:** [August 15, 2018, 4:26am UTC](https://forum.serverless.com/t/basic-string-manipulation/5450/1 "2018-08-15T04:26:10Z")

</div>

Hey there folks,

I was wondering if there was any basic String transformations we can do in the serverless.yml files?

Specifically, I need to strip out / replace dashes in some properties to make it a valid name for AWS Cognito Identity pools

Cheers,

Mark C