# Documentation help

**URL:** <https://forum.flow.com/t/documentation-help/1590>\
**Category:** ⚙️ Flow SDKs\
**Created:** [March 29, 2021, 8:00am UTC](https://forum.flow.com/t/documentation-help/1590 "2021-03-29T08:00:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dubovka](https://avatars.discourse-cdn.com/v4/letter/d/8e8cbc/32.png) [@dubovka](https://forum.flow.com/u/dubovka)\
**Post date:** [March 29, 2021, 8:00am UTC](https://forum.flow.com/t/documentation-help/1590/1 "2021-03-29T08:00:42Z")

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Hello. Such a question, going through this documentation [Flow Documentation](https://docs.onflow.org/flow-js-sdk/flow-app-quickstart)  
I dwell on the FCL and scripts moment.  
import \* as fcl from “@ onflow / fcl”

await fcl  
.send ([  
fcl.script` pub fun main (): Int { return 5 + 4 } `,  
])  
.then (fcl.decode)  
Where should I add this code, in which script? Wherever I add it, I swear at AWAIT  
Also, at the AuthCluster stage, I build my application via npm run start and I have two buttons, whatever I click, I get an error “Unhandled Rejection (TypeError): Failed to construct ‘URL’: Invalid URL” can help me with this?

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<div class="post-metadata">

**Author:** ![sideninja](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.flow.com/sideninja/32/363_2.png) [@sideninja](https://forum.flow.com/u/sideninja)\
**Post date:** [March 30, 2021, 11:16am UTC](https://forum.flow.com/t/documentation-help/1590/2 "2021-03-30T11:16:37Z")

</div>

Do you use React? Make sure you have followed previous steps with setting up the confiugration.  
If you don’t use React you may wanna take a look at the sdk [flow-js-sdk/packages/sdk at master · onflow/flow-js-sdk · GitHub](https://github.com/onflow/flow-js-sdk/tree/master/packages/sdk)