Firebase google auth in Swagger (Swashbuckle.AspNetCore) - firebase

Question

Trying to implement firebase google authentication in the swagger
onboard: asp.net core 5, Swashbuckle.AspNetCore 6.3.1,
In fairbase console > authentication > Sign-in method > authentication via google is enabled
On ServiceConfigure method:
services.AddSwaggerGen(c =>
{
c.SwaggerDoc("v1", new OpenApiInfo { Title = "MyApi", Version = "v1" });
c.UseInlineDefinitionsForEnums();
c.AddSecurityDefinition("oauth2", new OpenApiSecurityScheme
{
Type = SecuritySchemeType.OAuth2,
Flows = new OpenApiOAuthFlows
{
//email and password authentication - works fine
Password = new OpenApiOAuthFlow
{
TokenUrl = new Uri("/api/v1/auth/password", UriKind.Relative), //here my backend endpoint
Extensions = new Dictionary<string, IOpenApiExtension>
{
{ "returnSecureToken", new OpenApiBoolean(true) },
},
},
//try add google auth - troble here
Implicit = new OpenApiOAuthFlow()
{
//Not sure about the endpoints. Its not work with 404 err
AuthorizationUrl = new Uri("https://securetoken.google.com/MY-PROJECT-FIREBASE-NAME"),
TokenUrl = new Uri("https://securetoken.google.com/MY-PROJECT-FIREBASE-NAME"),
Scopes = new Dictionary<string, string>
{
{ "profile", "profile" },
}
}
}
});
c.OperationFilter<AuthorizeCheckOperationFilter>();
});
class filter:
public class AuthorizeCheckOperationFilter : IOperationFilter
{
public void Apply(OpenApiOperation operation, OperationFilterContext context)
{
var requiredScopes = context.MethodInfo.DeclaringType.GetCustomAttributes(true)
.OfType<AuthorizeAttribute>()
.Select(attr => attr.Policy)
.Distinct();
if (requiredScopes.Any())
{
var oAuthScheme = new OpenApiSecurityScheme
{
Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = "oauth2" }
};
operation.Security = new List<OpenApiSecurityRequirement>
{
new OpenApiSecurityRequirement
{
[ oAuthScheme ] = requiredScopes.ToList()
}
};
}
}
}
in Configure method:
app.UseSwagger();
app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "MyApi v1");
What endpoints for AuthorizationUrl / TokenUrl should call?
Any additinal options for swagger?
I`m new in Firebase. M.b. need aditional adjustments in firebase console?
I would be very appreciate for a code sample.

Answer 1

I found a good repo for you. This simple is .NET 5 WebApi project base with the following features implemented:
Swagger with Firebase login
Serilog Logging to Amazon CloudWatch
Encrypted fields in AppSettings
Soft Delete and Audit Columns
Multitenancy support
Data Seeding
Localization
code sample：clean-base-api