# Invalid signature using sample web sdk

**URL:** <https://devforum.zoom.us/t/invalid-signature-using-sample-web-sdk/32619>\
**Category:** Web\
**Created:** [October 8, 2020, 2:37pm UTC](https://devforum.zoom.us/t/invalid-signature-using-sample-web-sdk/32619 "2020-10-08T14:37:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![afernandz1998](https://avatars.discourse-cdn.com/v4/letter/a/cab0a1/32.png) [@afernandz1998](https://devforum.zoom.us/u/afernandz1998)\
**Post date:** [October 8, 2020, 2:37pm UTC](https://devforum.zoom.us/t/invalid-signature-using-sample-web-sdk/32619/1 "2020-10-08T14:37:17Z")

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**Description**  
Im getting invalid signature error (3712) when using the sample web sdk at [GitHub - zoom/sample-app-web: Zoom Web SDK Sample App](https://github.com/zoom/sample-app-web)

this is the signature the sample is generating with zoomMtg.GenerateSignature() method  
Signature:

Thanks in advance!

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**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [October 8, 2020, 2:37pm UTC](https://devforum.zoom.us/t/invalid-signature-using-sample-web-sdk/32619/2 "2020-10-08T14:37:22Z")

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Hey @afernandz1998

Thanks for posting on the Zoom Devforum! I am still learning, but I will try my best to help answer your question. 🙂

Checkout this related thread that may have the answer you are looking for:

> [@SDK Sample 'The signature has expired'](https://devforum.zoom.us/t/-/7107):
>
> Description Getting the following error on ZoomMtg.join() Error { status: false, errorCode: 200, errorMessage: "The signature has expired.", result: null } Which version? @zoomus/websdk@1.7.0 To Reproduce Clone [https://github.com/zoom/sample-app-web](https://github.com/zoom/sample-app-web) Install dependencies, add sdk api-key and api-secret and run (running ‘Local’) Screenshots

If this thread did not help, please let us know by replying back here and someone from the Developer Relations team will get back to you shortly.

Thanks,  
DeveloperBot

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [November 8, 2020, 12:37am UTC](https://devforum.zoom.us/t/invalid-signature-using-sample-web-sdk/32619/3 "2020-11-08T00:37:23Z")

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