# SSL Handshake Error

**URL:** <https://devforum.zoom.us/t/ssl-handshake-error/80533>\
**Category:** Meetings\
**Created:** [December 20, 2022, 12:59pm UTC](https://devforum.zoom.us/t/ssl-handshake-error/80533 "2022-12-20T12:59:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zoomrahi](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/zoomrahi/32/35375_2.png) [@zoomrahi](https://devforum.zoom.us/u/zoomrahi)\
**Post date:** [December 20, 2022, 12:59pm UTC](https://devforum.zoom.us/t/ssl-handshake-error/80533/1 "2022-12-20T12:59:23Z")

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- We are getting SSL handshaking error while calling the OAuth API from our backend code even with the server-to-server approach. Also, we have performed the following steps on basis of our earlier discussions.

- Initially, implemented Oauth API instead of using the JWT token

- Later implemented the OAuth Server-to-server approach

Then we set the SSL protocol to TLSv1.2 as suggested on Stack Overflow documentation\*

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**Author:** ![freelancer.nak](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/freelancer.nak/32/40968_2.png) [@freelancer.nak](https://devforum.zoom.us/u/freelancer.nak)\
**Post date:** [December 20, 2022, 1:58pm UTC](https://devforum.zoom.us/t/ssl-handshake-error/80533/2 "2022-12-20T13:58:14Z")

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You are using programming language?

For OAuth flow please watch 👇

- OAuth [P1](https://youtu.be/LY7jXL9FSqA) & [P2](https://youtu.be/ytkNxMyZ8_E).