# Make users login from different frontends

**URL:** <https://community.auth0.com/t/make-users-login-from-different-frontends/90450>\
**Category:** Get Help\
**Tags:** login\
**Created:** [September 12, 2022, 3:40pm UTC](https://community.auth0.com/t/make-users-login-from-different-frontends/90450 "2022-09-12T15:40:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Essay97](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/essay97/32/25966_2.png) [@Essay97](https://community.auth0.com/u/Essay97)\
**Post date:** [September 12, 2022, 3:40pm UTC](https://community.auth0.com/t/make-users-login-from-different-frontends/90450/1 "2022-09-12T15:40:11Z")

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Hi everyone,

this is my first time using Auth0 and I’m a bit confused by all the new stuff.  
I am building a REST API with Kotlin and Spring Boot. I still don’t know how I will consume it, but most likely 2 native apps (Android and iOS) and a web app (probably React, or SPA in general).  
Now I want the users to be able to sign up and login to their profile from any frontend, but I’m not sure about how to set up the thing. I tried to follow [this tutorial](https://auth0.com/blog/build-and-secure-an-api-with-spring-boot/) but I ended up with machine-to-machine authentication and this is not what I want.  
I’m not even sure about what’s the use case for machine-to-machine authentication.

Also, what if I want to test my secured endpoints using curl or Postman, without relying on frontend?

Can you help me to clarify the whole thing?  
Thanks in advance!

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**Author:** ![ty.frith](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/ty.frith/32/58484_2.png) [@ty.frith](https://community.auth0.com/u/ty.frith)\
**Post date:** [September 21, 2022, 12:54am UTC](https://community.auth0.com/t/make-users-login-from-different-frontends/90450/3 "2022-09-21T00:54:44Z")

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Hey there @Essay97 welcome to the community!

Were you able to make any progress here?

I definitely recommend taking a look at our docs on common architecture scenarios:

> **[Architecture Scenarios](https://auth0.com/docs/get-started/architecture-scenarios)**
>
> Learn about common Auth0 architecture scenarios that you can use to solve your authorization and authentication needs.

> [@Essay97](#):
>
> I’m not even sure about what’s the use case for machine-to-machine authentication.

Here’s a [blog post](https://auth0.com/blog/using-m2m-authorization/) that outlines machine to machine and its use cases 🙂

Hope this helps at least get you going in the right direction!

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**Author:** ![system](https://global.discourse-cdn.com/auth0/original/3X/b/5/b560f266932fcce5d57f09a6595bd50518cae3f3.jpeg) [@system](https://community.auth0.com/u/system)\
**Post date:** [October 5, 2022, 12:55am UTC](https://community.auth0.com/t/make-users-login-from-different-frontends/90450/4 "2022-10-05T00:55:05Z")

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