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How to integrate Google login feature in ASP.NET Core Identity

ASP.NET Core Identity External Login through Third-Party like Google, Facebook, Microsoft and Twitter is easy to integrate. Here we will create a feature that will allow users to Login to Identity with their Google credentials.

How to work with Policies in ASP.NET Core Identity

ASP.NET Core Identity Policy is a collection of requirements a user must have for him to be authorized to access a resource on the app. Identity Policy based Authorization can contains additional requirements for Identity Roles and Claims for a user to have, and this helps us to build richer authorization structures in our apps.

For example - we can create an Identity Policy named "MIT" that contains 3 requirements say "Grade A in High School", "18 Years or less", "Nationality American". Now we can apply this policy on the MIT portal and this will allow only those students to apply for a graduate course who have these 3 things:

1. Grade A in High School
2. 18 Years or less
3. Nationality American

How to work with Claims in ASP.NET Core Identity

How to add Custom User Properties in ASP.NET Core Identity

If we want to add custom user properties like "Age, Country & Salary" to the ASP.NET Core Identity Users then we can do this by adding Custom User Properties to the User class. The User class, as we all know, inherits from the IdentityUser parent class. These new custom properties are added as new columns to the AspNetUsers table of Identity database.

How to work with Roles in ASP.NET Core Identity

In ASP.NET Core Identity, we can create Roles that contain a set of permissions for performing a set of activities in the app. For example an organization can have 4 roles which are:

How to do Authentication of Users in ASP.NET Core Identity

What is Identity Authentication in ASP.NET Core? Authentication is the process of recognition of a user when he successfully logins to the app. ASP.NET Core Identity presents a login form where user has to provide his username and password to authenticate himself. On successful login, Identity authenticates the user and he is granted access the secured resources of the ASP.NET Core app.