How to Add Google Authentication into a ASP.NET Core Application

We look at the authentication extensions that are available in ASP.NET Core.

Firstly, we create a new service in Google's Cloud Platform, getting the all important OAuth 2.0 client ID and secret.

Afterwards, we integrate the OAuth details into an ASP.NET Core application, allowing us to authenticate with our Google account.

Lastly, we will explore what information we get back from Google when we successfully authenticate with our application.

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[ilyachudinovskikh]

I dont often write comments on youtube, but you did a great job and that is the best youtube guide for this kind of stuff. Thanks a lot and shoutout from Russia!)

[sanjayprajapati]

This is what i was actually looking for, thanks

[md.tahmidmozaffar]

I just started learning ASP Net Core stuff last month. This is just what I was looking for. Thank you very much. Subscribed.

[JuanPabloUribeRodas]

Hi, Thank you very much, excellent explanation

[donaldlee]

Very nice explanation - thank you. I successfully added Google authentication to my asp.net core 3.1 app using your video. Next step is to add a logout button.

[Angel_xiii]

You're so awesome, you really know your stuff, great content :)

[marcioaugusto]

Thank you so much for this instructional video. Helped me a lot

[mrohailiqbal]

Very informative. Keep up the good work bro :)

[ranjitumakanthan]

I tried and its working, Thank you for the detailing explanations

[mdakatt]

Thanks a lot, its works you saved me hours to deal with Authentication roles and databases n just use this service ♥that

[iyashasgowda]

Thank you for explaining google authentication in very simple way, hope you might do Microsoft authentication too in next videos

[Usman-fmse]

Thank you for such a great video, it was very informative but I need your little bit of help, could you please explain how I get OAuth access token after "google-response"...

[aminarifovic]

First of all thank you for the great guide but just one question. How do you let others access the google login from different systems.

[AlThePal]

Should definitely make the solution section smaller so that we can see the whole code. I have to bring in the using because I am using VS 2022. Additionally, since that is different how did you create this project. I know it is a MVC but did you use no authentication in it that is not at all in the description. Your video is great so I am trying to make sure I know exactly what you're doing

[krakxp]

Its works,

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Thank

[ankxnjst]

Would this work on asp net core web application(without MVC)?

[prabdeepdhaliwal]

Hey, thanks for the video!
For some reason after I sign in via google, I am not redirected anywhere... It just shows that I've signed in on the google button, but I'm still on the login page.

Also I tried to manually type in an authorized route to see if I'm authenticated but it results in this error:
NullReferenceException: Object reference not set to an instance of an object.
on this line:
var claims = result.Principal.Identities

Any idea what may be the problem?

[HaoNguyen-kmxj]

Is the .net web API can do like have a mobile app with flutter, the backend is .net 5 web API and in flutter I have implement google sign in with firebase, how can I implement the API match with flutter, ...

[Thephoenix]

I don't have the fields you have, when i go to select internal vs external it talks about test users, not "everyone" I don't want to specify test users. Please ensure to elaborate on that.

[pendejo]

Hello. I would like to thank you for such good help material that you share with us.
Could you help me with something, I don't know why it gives me "Object Reference not set an instance of an object"? Do you know why it is?

I have a version of 3.4 Net.core and Microsoft of 3.1.15