nginx can authenticate users based on subrequests to an identity server,
yes, RTFM:
https://nginx.org/en/docs/http/ngx_http_auth_request_module.html

If you want to use JSON Web Tokens, only the non-FOSS version will be able
to help you:
https://nginx.org/en/docs/http/ngx_http_auth_jwt_module.html
---
*B. R.*

On Mon, Mar 13, 2017 at 7:13 AM, nginxsantos <nginx-forum@forum.nginx.org>
wrote:

> Hi,
>
> Does Nginx provide the support for verifying the access token in the
> incoming request from an Identity Server?
>
>
> Regards, Santos
>
> Posted at Nginx Forum: https://forum.nginx.org/read.
> php?2,272899,272899#msg-272899
>
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