Google Authentication with react and dotnet core web API

Question

I created a react app with google auth which is working fine. Now I want to check google token to my dotnet core web API and validate it.

I tried services.AddAuthentication with the AddGoogle method but it's not working.

I also tired a middleware https://github.com/khellang/Middleware/tree/master/src/Authentication.JwtBearer.Google. But this is not working as well

services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(x => x.UseGoogle(
    clientId: "<google-client-id>",
    hostedDomain: "<optional-g-suite-domain>"));

Can anyone tell how we can check and validate google token using dotnet core API in c# with [Authorize] attribute?

My React app running on localhost:3000 and API is on localhost:5001

I have the same problem. I too have a react app with working client side google authentication. I would like to now secure a web api with authorize attribute and use the related google auth token from UI. — Shubhan
I have the same problem and I haven't found a solution yet, did someone find the solution? — Michael Horojanski

Shubhan Shubhan · Accepted Answer · 2018-08-13T18:50:34

Solved it finally! I setup middleware as defined in http://koscielniak.me/post/2016/04/accesing-api-with-token-from-google-identity-provider/

This works for valid tokens in the api request. For invalid tokens, it does not return but its fine for me ...

Google Authentication with react and dotnet core web API

1 Answers