# errorCode:1, errorMessage: "Invalid signature."

**URL:** <https://devforum.zoom.us/t/errorcode-1-errormessage-invalid-signature/6510>\
**Category:** API and Webhooks\
**Created:** [November 5, 2019, 6:09am UTC](https://devforum.zoom.us/t/errorcode-1-errormessage-invalid-signature/6510 "2019-11-05T06:09:09Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [November 5, 2019, 9:35pm UTC](https://devforum.zoom.us/t/errorcode-1-errormessage-invalid-signature/6510/2 "2019-11-05T21:35:43Z")

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Hey @szliuxi199908, thanks for posting and using Zoom!

Are you using a [JWT App Type for the API key and secret](https://marketplace.zoom.us/docs/guides/getting-started/app-types/create-jwt-app)?

Duplicate post:

> [@Invalid Signature with Sample Web App](https://devforum.zoom.us/t/invalid-signature-with-sample-web-app/4005/20):
>
> Hi, I encountered the same “invalid signature” problem even when I set up a Zoom meeting and used the actual meeting ID without “-”. I followed the guidelines and did not change the javascript code except for replacing “Your API Key and Secret” with my actual ones. Here is the screenshot.

Thanks,  
Tommy

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