Authentication over applications under same domain

Hi there

A website I’m maintaining is made with WordPress and React SPA under same domain. I want to share seamlessly authentication info in pages WordPress and React SPA parts. currently, I have created applications of Auth0 feature individual.

Should I use SSO? or any other solutions?

Yes, use SSO, see this blog post that explains the concept (even though the blog post refers to two different domains, it also applies in the same way to two separate apps running under the same domain):

Thanks! Will take a look at it!

Let us know @horike37 if you have any other questions down the road!