# \#quickstarts-other **URL:** https://community.auth0.com/tag/quickstarts-other/2082.md [Latest](https://community.auth0.com/latest.md) · [Categories](https://community.auth0.com/categories.md) · [Tags](https://community.auth0.com/tags.md) --- ## [Testing Authorization Code Flow Using Postman - Still Relevant?](https://community.auth0.com/t/testing-authorization-code-flow-using-postman-still-relevant/188978)
**Author:** [@everett.comstock](https://community.auth0.com/u/everett.comstock)\ **Replies:** 3\ **Last updated:** [September 18, 2025, 8:24pm UTC](https://community.auth0.com/t/testing-authorization-code-flow-using-postman-still-relevant/188978 "2025-09-18T20:24:38Z")
Is this knowledge article still valid? https://community.auth0.com/t/testing-authorization-code-flow-using-postman/105024 I’ve reproduced the Postman collection locally and I’m able to successfully invoke all steps, bu… --- ## [Uncaught Error: Invalid argument(s): Auth0Client has not been initialized](https://community.auth0.com/t/uncaught-error-invalid-argument-s-auth0client-has-not-been-initialized/150965)
**Author:** [@MeshApps](https://community.auth0.com/u/MeshApps)\ **Replies:** 1\ **Last updated:** [November 6, 2024, 6:59pm UTC](https://community.auth0.com/t/uncaught-error-invalid-argument-s-auth0client-has-not-been-initialized/150965 "2024-11-06T18:59:56Z")
Hello, i’m currently facing an error regarding authentication with flutter web. I am using the official package. Sometimes the app build very long when also using the debugger. If using release mode it works directly. … --- ## [Can't build flutter app](https://community.auth0.com/t/cant-build-flutter-app/133909)
**Author:** [@jinnielazzy](https://community.auth0.com/u/jinnielazzy)\ **Replies:** 1\ **Last updated:** [May 28, 2024, 1:21pm UTC](https://community.auth0.com/t/cant-build-flutter-app/133909 "2024-05-28T13:21:17Z")
Hey, I’m new to flutter and want to integrate Auth0 universal login by following this tutorial.Auth0 Flutter SDK Quickstarts: Add login to your Flutter app. However, I got stuck on the build step, as I consistently hit … --- ## [Custom Claims Go Gin](https://community.auth0.com/t/custom-claims-go-gin/122298)
**Author:** [@TheRabber](https://community.auth0.com/u/TheRabber)\ **Replies:** 5\ **Last updated:** [December 5, 2023, 8:35pm UTC](https://community.auth0.com/t/custom-claims-go-gin/122298 "2023-12-05T20:35:48Z")
Hey together, I’m currently learning go with gin and try to setup auth0 for authentication and authorization, the first part is working fine so far. Now I try to implement authorization based on rules using this tutori… --- ## [Auth0, flutter app](https://community.auth0.com/t/auth0-flutter-app/120250)
**Author:** [@vamsimohanp](https://community.auth0.com/u/vamsimohanp)\ **Replies:** 1\ **Last updated:** [November 6, 2023, 9:43pm UTC](https://community.auth0.com/t/auth0-flutter-app/120250 "2023-11-06T21:43:08Z")
I am new to auth0 I know how to add auth0 to web app I need help to add auth0 to flutter app (Andriod, iOS) I was unable to videos in YouTube help me guys. --- ## [Configure Spring boot app as resource server to validate access token from AUth0](https://community.auth0.com/t/configure-spring-boot-app-as-resource-server-to-validate-access-token-from-auth0/105779)
**Author:** [@kenobago](https://community.auth0.com/u/kenobago)\ **Replies:** 3\ **Last updated:** [May 3, 2023, 3:41pm UTC](https://community.auth0.com/t/configure-spring-boot-app-as-resource-server-to-validate-access-token-from-auth0/105779 "2023-05-03T15:41:05Z")
I’m using Spring boot 2.7.8v to integrate Oauth using Auth0. i have followed exactly the steps from the docs to implement authentication in my app but i keep getting IllegalAurgmentException. here is the execption: Erro… --- ## [Auth0 intergration with Nuxt](https://community.auth0.com/t/auth0-intergration-with-nuxt/104240)
**Author:** [@george2](https://community.auth0.com/u/george2)\ **Replies:** 2\ **Last updated:** [October 31, 2025, 2:15pm UTC](https://community.auth0.com/t/auth0-intergration-with-nuxt/104240 "2025-10-31T14:15:39Z")
i’m working a frontend based project using Nuxt3. I’m looking to impleme some sort of authentication/authorization, but i realize that there is no SDK for Nuxt. And I’ve been trying to intergrate this using the spa-j… --- ## [Which module to install for Vue3+Vite+VitePWA? (auth0-spa-js or auth0-vue?)](https://community.auth0.com/t/which-module-to-install-for-vue3-vite-vitepwa-auth0-spa-js-or-auth0-vue/97657)
**Author:** [@kit.zeller](https://community.auth0.com/u/kit.zeller)\ **Replies:** 2\ **Last updated:** [January 15, 2023, 5:08pm UTC](https://community.auth0.com/t/which-module-to-install-for-vue3-vite-vitepwa-auth0-spa-js-or-auth0-vue/97657 "2023-01-15T17:08:43Z")
I’m confused… I’m migrating my SPA from Vue2/PWA/Webpack to Vue3/Vite/VitePWA and am not sure which of the following modules I should use: @auth0/auth0-spa-js @auth0/auth0-vue UPDATE: Got it working using “auth0-vue” …