Contents
API Key Authentication The API key is usually a long series of numbers and letters that you either include in the request header or request URL. When the client authenticates the API key, the server stamps their identity and allows them to access data.
There are three ways to authenticate with this API:
- with an OAuth2 Access Token in the Authorization request header field (which uses the Bearer authentication scheme to transmit the Access Token)
- with your Client ID and Client Secret credentials.
- only with your Client ID.
What is authorization give example?
Authorization is the process of giving someone the ability to access a resource. This simple example allows us to introduce a few concepts in the authorization context. For instance, accessing the house is a permission, that is, an action that you can perform on a resource.
One example in which authorization, authentication, and encryption are all used is booking and taking an airplane flight. Encryption is used to protect a person’s credit card and personal information when it is sent over the Internet to the airline.
Here I will give you an overview of Authentication and Authorization in Web API and from the next article onwards, we will discuss the practical implementation of Authentication and Authorization in ASP.NET Web API with examples.
What do you need to know about authentication and authorization?
Once you create a Web API Service, then the most important thing that you need to take care of is security means you need to control access to your Web API Services. So let’s start the discussion with the definition of Authentication and Authorization Authentication is the process of identifying the user.
We can implement this in ASP.NET Web API by using the Authorization filters which will be executed before the controller action method executed. So, if the request is not authorized for that specific resource, then the filter returns an error response to the client without executing the controller action method.
What does authentication mean in the REST API?
If you have the Username and the Password you are who you profess to be. This is what Authentication means. In the context of REST API authentication happens using the HTTP Request.