First, we are going to change the public configuration object to private field config, and register it as Singleton in the Configureservices. ConfigureServices is going to setup the dependency injection in ASP.NET Core, and Configure method is used to specify how ASP.NET Core will respond to individual HTTP requests. In startup.cs file, there are two main methods - configureServices and Configure.
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It also instantiates a class called startup, and the startup class is where to setup how to answer the request. So, what the file actually doing is that it creates a new webhost builder and then runs the webhost to start listening to the requests. The program.cs file is in the root of project, and if you look closely, it starts with void main and that’s the starting point of console app. Right now, let’s restore packages by typing "dotnet restore". You might see that there are already some files generated by template we will discuss these files later. Open command prompt, type "mkdir confusionrestaurant", and again type "dotnet new webapi", to create an ASP.NET Core Web API template. It has its own Controller but in order to post a comment, we have to get specific dish. The last thing we need is "comments" resource. To get a specific dish or dish category, we will include the dishId or category. We have "dishes" resource and if we use GET method, we should get a collection of dishes. We are going to design the outer layer contract first a resource name in URI should be a noun. Adding view models and mapping with an automapper.
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In this post, we will create Web APIs to perfrom CRUD (create, read, update and delete) operations. If you are building services today for mobile, HTML 5, and even client-server desktop applications, all these different types of applications need services in the back-end to perform operations on data. Web API is a framework that allows us to build web or http based endpoints. In this article, we are going to learn how to create an API with ASP.NET Core.
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