angular-spa | .NET 6.0 Angular 13 CLI Bootstrap 5 App | Frontend Framework library
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QUESTION
As part of a migration from Firebase to Auth0, my front-end Angular application conditionally authenticates users to either Firebase or Auth0 based on their email address. I am attempting to configure the Auth0 AuthHttpInterceptor provided with the Auth0 Angular SDK for SPAs such that it will attempt to add an authentication token only when the user is known to be an Auth0 user (i.e., when they have already signed in to my application). In particular, I would like it to just "passthrough" requests for Firebase-authenticated users.
I've configured both the Auth0 HttpInterceptor and my custom Firebase HttpInterceptor so that they are called one after the other. I've set Auth0 to "allowAnonymous" in an attempt to make it skip processing in the case the current user is not authenticated to Auth0. The interceptor is configured in my module like:
...ANSWER
Answered 2021-Aug-14 at 05:57You could make an aggregate interceptor and have it delegate to auth0 or firebase based on your logic:
QUESTION
Im getting 2 different errors on calling my login() function which looks like this:
...ANSWER
Answered 2021-Feb-01 at 17:22To resolve this error, you need to set the redirect URI used in your app to be of type "Single Page Application" in the Azure Portal.
QUESTION
I'm currently working on Azure AD authenticaton integration to Angular - .Net core 3.1 project. This is a project which was generated from Visual Studio 2019 template (ASP.NET Core Web App).
In Azure portal, I registered 2 application and configured by MS tutorial and this.
Two registed app:
- frontend_app (client id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx16e3)
- backend_api (client id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxfcc1)
But I published only one App service, which contains both SPA and API. After login, I got a token, which append to every api call with MSAL interceptor.
The problem is all of the calls return is: 401, due to 'audience is invalid'. in the auth token the audience value the client id of frontend_app.
How can I solve to accept the the audience? Is it correct to use 2 app registration for only one app service?
...ANSWER
Answered 2020-Dec-07 at 10:01As I said in the comment, the 401 error is usually because your audience does not match the api you want to call, so you need to make sure that your target audience is your api, in your question it should be your backend_api, I Use auth code flow to make a simple demonstration for you:
Parse the token：
QUESTION
I am trying to experiment with Azure App Insights, following this tutorial. Unfortunately, I am totally new to Angular while experienced with the old Angularjs. The tutorial seems enough old-dated, I am working with Angular 10.
The concept is that in order to log errors (and possibly other analytics events) in an Angular application we can leverage the Azure Insights SDK
The tutorial creates a very-well-engineered service, that they called MyMonitoringService and I took freedom to rename AnalyticsService. So I just copied the fragment from the tutorial and renamed the class (saving as analytics.service.ts). I also had to import Injectable otherwise VS Code will report me an error.
I also created the same (!) ErrorHandlerService (error.handler.service.ts). Exclamation mark because I first extended Angular's ErrorHandler, then tried to implement with same result
ANSWER
Answered 2020-Dec-04 at 09:22I think that you are not providing your AnalyticsService anywhere, at least I didn't find it in the code that you presented. Either add it to the module that is going to use it, or
QUESTION
I have an Apache2 HTTP Server set up on a Ubuntu Linux Server according to Corey Schafer's youtube playlist about Django to serve a django application (A Hobby-Project to learn Django) via WSGI. The server is set-up to use HTTPS instead of HTTP.
I would like to also use this HTTP Server to deploy a Single-Page-Application (SPA) developed with Angular 10. I am trying to have this configuration satisfy 3 criteria:
- Serve my django application
- Serve my Angular SPA
- Serve the Angular SPA without me changing the index.html file of the angular SPA (e.g. by modifying the src-urls used in the js-script-tags)
Point 3 is mostly there so I can do quick and easy deployment of updates to my SPA by just pulling an updated bundle from a git-repo whenever there is one.
What I configured below so far (and successfully serves my Django App) serves my django-app correctly in the url namespace /wiki.
The Angular SPA is served in the url namespace /wiki2.
ANSWER
Answered 2020-Dec-01 at 17:24I have decided to abandon parameter 3 and instead write a pre-commit git-hook that modifies my index.html as I need it.
WARNING: This only works for me because before any changes that I commit, I have already run ng build --prod to have a dist folder of my current version and because I also commit my dist folder in my repository.
If you do not have this kind of workflow I highly recommend to not use pre-commit, but a different hook that more accurately represents whenever you have made a build. Below the code for the commit because why not.
QUESTION
I have an independent react front-end and ASP.NET Core Web API (back-end) working and communicating fine on localhost. i created ClientApp folder in webApi project and copied whole react app in it. then followed @Ringo answer on similar problem which is here
I changed the urls in both the frontend and backend from https://localhost:3000 to https://www.virtualcollege.pk.
but it's not working on remote here is link
The program.cs is:
...ANSWER
Answered 2020-Aug-21 at 00:53i am sharing so that it may be helpful for others, after days of try and error i found that there is one extra step which should take to mix the react with asp.net webapi. that is ,edit the .cspoj file and put some extra code in it.
so , i created a new react with asp.net core app from visual studio template and opened the .csproj file and copied the stuff from there to my project .csproj. now it is working fine. here is link : here
QUESTION
I've been able to successfully use this example code to play with AAD app registrations. I'm confused as to why we need two separate app registrations, one for the front end, and one for the API. Could I just set this up to use one app? If so, is there a drawback to this setup?
Thank you
...ANSWER
Answered 2020-Aug-13 at 23:18You can do that if you wish so, but in general it is not recommended. There are a number of reasons why, but here's a quick example: when granting permissions to an application (either via app permissions or delegated permissions), you should follow the "principle of least privilege" i.e. give just enough permissions to an application and not more. It is quite possible that a client app and a web API will require different scopes/permissions to do the work they need to do, but using the same app registration means that you won't be able to separate the scopes required for each.
A similar case would be where you care more about the protection of your web API than your client app. Say, you use certificates for your web API but only a client secret would do for your client app. Again, in that case, having separate app registrations would allow you to customize each according to their security needs.
Last but not least, say you have multiple client apps (a SPA, a mobile, a desktop app etc.), and a single web API, all in the same app registration. For your business logic, perhaps you need to be able to distinguish from which client app the request comes from. Although there are ways to achieve this with a single app registration, again it is much more hassle free to have separate registrations.
QUESTION
I'm trying to create a basic authentication app (SPA) using Angular 8 with Azure B2C login. I'm using this sample here.
I already configured the "app registration" for the SPA, but I'm not sure whats is the "Web API" in the sample.
When I run the project I can login but after redirect to Angular I got the following error:
ANSWER
Answered 2020-Jun-03 at 14:06this sample has 2 methods of setup, either use their demo tenant, where you don't set anything, just run. or if you are setting your own app registration in the spa, which it appears that you are, then you also need to set up the web api from a different sample, as per the readme, https://github.com/Azure-Samples/active-directory-b2c-javascript-nodejs-webapi so you need to set this up, then in the API permissions, MY APIs will show in the SPA app registration.
QUESTION
I have been working through this tutorial:
https://github.com/Azure-Samples/ms-identity-javascript-angular-spa-aspnetcore-webapi
The Authentication works fine.
However, I get a CORS exception in the console:
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://localhost:44351/api/todolist/. (Reason: CORS request did not succeed).
In startup.cs I changed:
// builder.AllowAnyOrigin() // .AllowAnyMethod() // .AllowAnyHeader();
to:
builder.WithOrigins("http://localhost:4200") .AllowAnyMethod() .AllowAnyHeader() .AllowCredentials();
This had no effect.
Can anyone help me to resolve please?
Here is the startup.cs
...ANSWER
Answered 2020-May-25 at 08:47I have tried all the methods you tried, as well as other methods, and encountered the same problem in this project. More details can be found in the official documentation. According to the instructions in the official documentation, the cross-domain solutions you tried before are all achievable, and I think the problem may appear in this sample project. If you re-create the demo, there will be no such problems. https://docs.microsoft.com/en-us/aspnet/core/security/cors?view=aspnetcore-3.1
In the end, the suggestion I gave was to set up CORS on the portal, and I personally tested it to solve this problem.
In addition, if you need to trace the root of the problem, it is recommended to use the packet capture method for analysis, check the request header of the two websites, you can refer to the document .
QUESTION
I think my main question is which Authentication flow should I be using - On-Behalf-Of or Implicit Grant Flow? However my Authentication and Authorization set up in Startup.cs could be wrong and I am way off, so apologies if so.
I have an existing Angular SPA in Azure and a Net Framework API also running in Azure.
The web API has been ported to Net Core 3.1.
In our Azure directory, I have two registered apps. One for the API, and the other for the SPA. I have added the SPA client ID under authorized clients in the WEB API.
It is worth noting that the App services are actually running in a different directory (I think this if fine but just mentioning)
Here is the relevant Authentication/Authorization setup in Azure AD.
...ANSWER
Answered 2020-May-09 at 02:06You should be using implicit flow and msal-angular. It supports Angular from 4 to 9. Also I would not recommend using vanilla libraries in Angular unless there is no other choice.
ADAL is deprecated and does not support the converged application model (work+personal accounts) so you need to move to MSAL.
Follow Create web APIs with ASP.NET Core and Migrate from ASP.NET Core 2.2 to 3.0 to remove code like this:
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