The ASP.NET Core Session object has 3 methods to set the session value, which are Set, SetInt32 and SetString. The Set method accepts a byte array as an argument where the SetInt32 and SetString method are the extension methods of the Set method. These methods internally cast the int or string to a byte array. Similar to these, there are 3 methods used to retrieve the value from the session: Get, GetInt32 and GetString. There is no method available to store complex objects in session, and this post shows how to store complex objects in ASP.NET Core Session. Read More
Validate Model State automatically in ASP.NET Core 2.0
A ModelState is a collection of name and value pairs submitted to the server during a POST request. It also contains a collection of error messages for each value. The Modelstate represents validation errors in submitted HTML form values. Model validation is the first statement in each controller action method to check for any error before moving forward. A familiar piece of code.
The IsValid property will be true when the values are attached correctly to the model AND no validation rules are broken in the binding process. However, writing this piece of code in every action method increases efforts, lines of code and repetitiveness. It would be appropriate to make model validation a reusable piece or even better would be to automate this process. This post talks about how to validate model state automatically in ASP.NET Core 2.0.
Read More
Quick Tip – Return HTTP Status Code from ASP.NET Core Methods
It is advisable to return the proper HTTP status code in response to a client request. This helps the client to understand the request’s result and then take corrective measure to handle it. Proper use of the status codes will help to handle a request’s response in an appropriate way. Out of the box, ASP.NET Core has inbuilt methods for the most common status codes. Like,
return Ok();// Http status code 200return Created();// Http status code 201return NoContent();// Http status code 204return BadRequest();// Http status code 400return Unauthorized();// Http status code 401return Forbid();// Http status code 403return NotFound();// Http status code 404
New features of .NET Core 2.1
Earlier this week, Microsoft published the roadmap for .NET Core 2.1, ASP.NET Core 2.1 and EF Core 2.1, expected to be out in the first quarter of 2018. The team also talked about several new features with this new release. This release is more of a feedback-oriented release based on .NET Core 2.0 release. The.NET Core 2.0 is a huge success and already more than half a million developers are now using .NET Core 2.0. All thanks to .NET Standard 2.0 release. In this post find out about the new features of .NET Core 2.1. Read More
Create Petstore like Swagger UI for ASP.NET Core WEB API
Swagger doesn’t need an introduction as it is the world’s largest framework of API developer tools for the OpenAPI Specification(OAS), enabling development across the entire API life-cycle, from design and documentation, to test and deployment. Swagger is an UI representation of your RESTful API. It allows anyone — be it your development team or your end consumers — to visualize and interact with the API’s resources having none of the implementation logic in place. The Petstore (created by the swagger team) is a demonstration of the beautiful Swagger UI. You can easily integrate the Swagger in your application, but the sad part is you will get a different UI, not same as available @ Petstore. In this post, let’s find out how to create Petstore like Swagger UI for ASP.NET Core WEB API.
Read More
Disable Anti-forgery token validation globally in ASP.NET Core Razor pages
In this short post, find the code to disable Anti-forgery token validation globally in ASP.NET Core Razor pages. If you are new to Razor Pages, It’s a new feature of ASP.NET Core that makes coding page-focused scenarios easier and more productive. Razor pages use handler methods to deal with the incoming HTTP request (GET/POST/PUT/Delete). Read More
Create a React app in 5 steps using dotnet cli
Earlier I posted about creating an Angular 5 app in 5 steps using dotnet cli based on the new release candidate version of Single-Page Application templates. These templates allow developers to create SPA application based on Angular, React, and React with Redux. At the time of writing this post, the final version is scheduled to release in Early 2018. This post shows how to create a React app in 5 steps using dotnet cli. Read More