We would even suggest that. Then, in the Get action, we create a new BlobDto list and create a reference to the Azure container using the connection string and the container name. Next, we iterate through all the blobs inside that container and extract required values into a new BlobDto object, which we store in a list. In the previous article, we have uploaded one file to the storage.
But while preparing for this article, we have used the project from a previous one to upload two more files to our storage:. So, you can do the same.
Just visit the previous article and you will find the link to the source code of the project you can use to upload files.
So, we have everything we need to display these files in our client application. Then, we have to modify the HttpClient configuration in the Program class:. Lastly, we are going to modify the FetchData component to list all our files from Azure Storage:. There is nothing complicated in this code. We just send the HTTP request as soon as our component initializes and once we get the response, we iterate through the list and display images on the page.
One thing to note — for the sake of simplicity, we create a BlobDto class inside the component file. Since we have only one DTO object, this is just fine for the example. Of course, in real-world applications, you should create a shared project and place your shared files in it. Before we test this, we have to enable CORS on the server-side project. There we go, we can see all our files from the Azure storage.
You can be very descriptive of what will be returned from your actions. Show 1 more comment. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Who owns this outage? Building intelligent escalation chains for modern SRE.
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See your Linux distribution's documentation for trusting a certificate. The preceding command displays the following dialog, provided the certificate was not previously trusted:. See Trust the ASP. The page displays:. If the Swagger page doesn't appear, see this GitHub issue. Swagger is used to generate useful documentation and help pages for web APIs. This tutorial focuses on creating a web API. For more information on Swagger, see ASP.
Because Swagger will be removed, the preceding markup changes the URL that is launched to the GET method of the controller added in the following sections. A model is a set of classes that represent the data that the app manages. The model for this app is a single TodoItem class. In Solution Explorer , right-click the project. Name the folder Models. Name the class TodoItem and select Add. Model classes can go anywhere in the project, but the Models folder is used by convention.
The database context is the main class that coordinates Entity Framework functionality for a data model. This class is created by deriving from the Microsoft.
DbContext class. In ASP. The container provides the service to controllers. If the scaffolding operation fails, select Add to try scaffolding a second time.
When the [action] token isn't in the route template, the action name is excluded from the route. That is, the action's associated method name isn't used in the matching route. Update the return statement in the PostTodoItem to use the nameof operator:. The method gets the value of the to-do item from the body of the HTTP request. For more information, see Attribute routing with Http[Verb] attributes.
The CreatedAtAction method:. This tutorial uses http-repl to test the web API. If you don't have the. NET 5. Open a new terminal window, and run the following commands. If your app uses a different port number, replace in the httprepl command with your port number. The following example assumes that you're still in an httprepl session. If you ended the previous httprepl session, replace connect with httprepl in the following commands:. This app uses an in-memory database.
If the app is stopped and started, the preceding GET request will not return any data. If no data is returned, POST data to the app. The URL path for each method is constructed as follows:. Replace [controller] with the name of the controller, which by convention is the controller class name minus the "Controller" suffix. For this sample, the controller class name is TodoItems Controller, so the controller name is "TodoItems".
NET Core routing is case insensitive. If the [HttpGet] attribute has a route template for example, [HttpGet "products" ] , append that to the path. This sample doesn't use a template. The response code for this return type is OK , assuming there are no unhandled exceptions. Unhandled exceptions are translated into 5xx errors. For example, GetTodoItem can return two different status values:. The response is No Content.
This sample uses an in-memory database that must be initialized each time the app is started. There must be an item in the database before you make a PUT call.
Currently the sample app exposes the entire TodoItem object. Production apps typically limit the data that's input and returned using a subset of the model. There are multiple reasons behind this, and security is a major one. DTO is used in this tutorial. The secret field needs to be hidden from this app, but an administrative app could choose to expose it. In Visual Studio for Mac earlier than version 8. In version 8.
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