Return pdf from web api controller

This section is a continuation of the previous two sections where we created necessary infrastructure for the web api and also implemented get methods. Choose the right return type for webapi controllers. Oct 01, 20 this blog describes how to generate pdfs with asp. When prompted for the type of scaffolding to add, select web api 2 controller empty from the list. Get pdf file from a web api response and then return the same. This library provides that feature, by linking into the asp. All the public methods of the controller are called action methods. Click add button and the add controller dialog will appear. Rightclick the project and select add new item from the context menu. Thus, this method will just return the string hello world instead of returning a view whose name is hello world, like a more typical mvc application. The producesresponsetype attributes type property can be excluded.

May 30, 2016 the simplest web api controller can directly return the object in question. Create a new api controller and copy the content of ebookcontroller from the downloaded project into it. In order to return images stored directly in a sql server database from an asp. For more information, see controller action return types in asp.

Returning html or any file using web api peter rasmussen. Using the f12 browser developer tools or postman with the previous code. Net core has the best of both mvc and web api worlds from asp. Lets assume, we have a requirement to send a file based on the file type provided to the service request. While adding api controller class, name it with the suffix controller that is mandatory.

This blog describes how to generate pdf s with asp. I can see how to do this with normal mvc controllers, but not web. Here is how i basically do the same thing but from a mvc controller. Downloading an inmemory file using web api 2 no dogma blog. Contenttype new mediatypeheadervalueapplicationpdf. Today we will learn how to return an image from a web api. If your controller is trivial then you may be able to get away with returning an object directly but most real world controllers have multiple return paths and require more control over the response. How to return a pdf from a web api application stack overflow. We need to make sure the user is authenticated so anyone else going to the url wont have access to the fil.

Learn about using the various controller action method return types in an asp. The trouble im having is sending the document back to a client mvc application. Lets create a sample database named sampledb with sql management studio. In the second popup select template as web api and click on ok. At first you think its going to be easy to download a file from web api, but as i discovered, it was not. Net mvc web application except that it sends data as a response instead of html view. It enables you to return a type deriving from actionresult or return a specific type.

With that being said, you can have different reasons for having to do this. Returning file as response to rest request codeproject. Net web api is a framework that is built upon the mvc model view controller principal to assist in rapidly building a restful api using the. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information. Net core web api project in which we need to generate a pdf report. Nov 18, 2017 in this article, we are going to discuss how to return files pdfwordexcel from web api service. The basic controller class is ready for the api specific commands. The code above work for the file type like pdf, doc, mov, mp3, png, tif, jpeg, etc. The simplest web api controller can directly return the object in question. How to download files from authenticated web api end points. Controller derives from controllerbase and adds support for views, so its for handling web pages, not web api requests. Net core web api recently heres a quick post on calling one of these apis using jquery ajax the api is going to allow clients to. I have a web api project that is running on a server.

In the solution explorer panel, rightclick on the controller folder, then choose add from the shortcut menu. Crud operations using web api 2 and stored procedure with a. For example, the following controller action sets the cachecontrol header. The builtin helper method ok returns jsonformatted data. This option gives you a lot of control over the response message.

From any controller, you can return a view or object and mvc will take care of serializing it for you. You can call a web api controller from any client application, which is capable of making an post request either using jquery ajax or. But the return type implementation logic is exactly the. It is supposed to return pdfs from two different kinds of sources. Returning an image in web api method with fallback result image. In this article, we will create a web api project in. But my problem is that one of the controllers is web api and the other is mvc.

I have already found several solutions that help me move from the mvc controller to the api web controller, but i havent found the reverse yet. Net mvc, you are already familiar with controllers. Say you have a productcontroller that is concerned with crud operations on products, it might have a method like the below. For simplicity, im going to use a hardcoded list of people and not going to persist the people in a database.

Net backend controller which generates a pdf document object. Web api controller is a class which can be created under the controllers folder or any other folder under your projects root folder. As mentioned in the first example of what is web api action results, we can use any entity type as the return type. Change directories cd to the folder that will contain the project folder. Hi, does anyone have an example of returning a pdf from a web api get.

Net web api controller endpoint requiring authentication that returns a base64 string of the file contents. Jun 11, 2018 the repository logic should always be based on interfaces and if you want, making it generic will allow you reusability as well. Get pdf file from a web api response and then return the same from mvc controllerrss 1 reply last post apr 24, 2018 09. This template will create an index method with default action for controller. Now you can serve a view or a json response to a client from the same api controller. Here, we will implement post method in the web api. In this tutorial, im going to show you how to use angular to download a file from an authenticated asp. Net core series part 4 to see how we implement the generic repository pattern inside the. But the problem here is that we get 200 ok status code every time on a successful response. In the following text i will demonstrate how this is doable with microsoft web api and asp. Using the sampledb now create a table and name it tblcustomer. In this article we will learn about the basic crud operation using web api 2 and stored procedure with a sample desktop application. If you wish to build a website please use regular mvc or something else.

It can be created under any folder in the projects root folder. In this article, we will see how to download or return useful file types like. Please change the books path strings in newly created controllers. I wonder if anyone can help me with this thank you in advance for your. In this article, we are going to discuss how to return files pdfwordexcel from web api service. Nov, 2017 web api action method can contain any entity type as return type. I am prototyping streaming a pdf file from a web api, and after the download, i double click on the file and it says cant open this file. Call mvc controller from web api controller the asp. Rightclick on the controller folder in the solution explorer and select add controller. Media type aka mime type specifies the format of the data as typesubtype e. Apicontroller class it can be created under any folder in the projects root folder.

By default web api makes it easy to return common html content types, such as. Well add a controller that can return either a list of products or a single product specified by id. Here, you will learn how web api handles different formats of request and response data. Add any sample pdf, word, excel, zip name them as sample files into it.

The name of a controller class must end with controller and it must be derived from system. Net mvc verwendet haben, sind sie bereits mit controllern vertraut. Net core and we will learn how to return an image while you hit an api. However, it is recommended to create controller classes in the controllersfolder as per the convention. You would have seen earlier how to return a string response or an object response using web api. Dont create a web api controller by deriving from the controller class.

Embellish your web api responses with header data visual. I will start by mentioning that web api is not meant to deliver html pages. First we need to create a controller which inherits apicontroller and method which will return an image. In the add new item dialog, select api controller class and name it as reportviewercontroller. Actionresult offers the following benefits over the iactionresult type. Here, in this post i have written a simple file upload procedure in asp. Another important parameter is the object value in the writetostreamasync method.