Hello guys, welcome to the 24th session of the SP dotnet VBA. In a previous lesson, we are handled a cross domain access by using the edge SNP. In this session we are going to use the course cushions for cross origin resource saving. Let's switch to the Visual Studio, our routing project started so listen. I'm going to comment in the SMP formatter support for using the core so we need to add the one more nougat package, open the new gate search for the codes select the Microsoft dot ASP net dot Web API e dot codes Click on the Install button click OK Click Accept quartz was issued successfully. Now open the VBA dot config file.

Within that we need to create the instance of the Enable course attribute tree view it was a present in the different namespace so we need to import course equal to new enable course attribute. Within parentheses we need to specify the origin that will which we are going to follow in the case of we are using the star means all and the haters. I can we are going to use a star and a method also star that represent the all we need to add that code into the our configuration Therefore, write config dot enable course and within the apparent SS pas do quotes object semicolon and do so listen open to cross domain solution from which we are going to modify our data type to the HS and instead of Jason and switch shoot solution reload your page click on the so data you can see that it was received successfully.

In this example, we are used the shaft for the origin header as well as the method. However, we can modify that such that it accept the only get method. For example, it was accessible on the given URL if the request center to that The request sent to the EPA from the different origin than it will be are not able to receive the data. We are unable to course from the configuration which make the neighbor course for the our anti controller or the methods, we can also enable course at the controller level. Let's for example, comment the both offline how we need to specify the Enable code statement at the configuration file. Write the Enable course, but we are not going to pass the end instance and open the our employee controller.

At the controller level, I am going to use the Enable course attribute which was present in different namespace so add it and within the apprentices again, we need to specify the origin haters on the method. I'm going to use the star for all let's build your own So listen, let's reach to the refresh page from the crush domain and I'm going to click on the so data, you can see that all the data are received successfully. In that example, the course was enabled all the all of the methods are within that controller. However, we can also disable the course for the any specific method within that controller. Let's switch to the our VBA project, stop the execution. Let's say we'll do a course for that our get employee method.

For that we need to write the disable course. And let's run it switch to the our course romaine page, reload the page, click on the saw Data button. You can see that an ad I encounter message was occur and do cross origin request blocked message on the console. Just because of the disability course for that get employee method. For using cores, we need to add the Microsoft dot ASP net dot have a BPI dot cores from the nougat and enable cores in the web API config.cs file that result in the app underscore start for enabling the polls for the all of the controller for enabling the call for the all of the controller, then we need to use the instance of the equals and end to pass it in the normal course method or the configuration. We can also enable the course at the controller level as well as disable course at the excellent level.

Thanks for watching. If you have any doubt, feel free to contact me