Return pdf from web api mvc

Net mvc 4 web application from types of application as shown below. More precisely, you can design an action method to return any. Yes, your mvc code can be a consumer of a webapi, but not the other way around. Open the visual studio and click file new project menu option. The producesresponsetype attributes type property can be excluded. Another important parameter is the object value in the writetostreamasync method. 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. Net framework and it also supports contentnegotiationits about deciding the best response format data. Net web api 2 for mvc developers by adam freeman apress, 2014. Returning file as response to rest request codeproject. Want to serve a pdf file with dynamicallygenerated content. The trouble im having is sending the document back to a client mvc application.

In this article will discuss how can we generate a new pdf file and. Mvc vs web api difference between mvc and web api gb. Here we are assuming that the web api is returning json data that it generally does. For your convenience apress has placed some of the front. I am not exactly sure which part to blame, but heres why memorystream doesnt work for you as you write to memorystream, it increments its position property. Thus the download can be made to happen by just setting the window. I can see how to do this with normal mvc controllers, but not web. For example, in mvc we define url format using routeconfig class and registerroutes static methods. Add any sample pdf, word, excel, zip name them as sample files into it. It is important for the beginners to be aware that although these are. This article showsan example of uploading a file in the asp. Returning an image in web api method with fallback result. Relative to the web api server, my mvc application is clientside. In my case i wanted to load data from the database, perform some processing and return a.

Return a base64 representation of the file instead of the raw file contents. How to download files from authenticated web api end points. Net web api is an ideal platform for building restful applications on the. As youll see later, an mvc based service is pretty loose in comparison to a wcf service. Action method return type tutorialsteacher online web. Inside the project template select web api and in the. For creating the file i have managed to get hold of the follo.

Net community decided to merge the functionality of mvc and web api. This article explains how to transfer return filespdfdocexcelzip files from web api service. In this article, we will discuss web api and its return types. The concept of endpoints doesnt exist, and neither do contracts. In the second popup select template as web api and click on ok. I have a web api project that is running on a server. Actionresult offers the following benefits over the iactionresult 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. Frankly, a webapi controller returns nothing but data, never a view page. In this article, we are going to discuss how to return files pdf wordexcel from web api service. Relative to the web api server, my mvc application is microsoftiis10. So if you write to the stream, then pass it to streamcontent, the response will start from the nothingness at the end of the stream. Net framework and it also supports contentnegotiation which is not in mvc. Net mvc as a service framework 3 configuration as is the case when building a web site, there isnt much to configure to get an mvc based service up and running.

Net core web api with various scenarios and came up with these tips for anyone out there wanting to do the same. I am trying to learn web api by my own, for the same i have developed very basic login application in and middle layar as web api to interact with database. Uploading the file from the client is a basic operation. The constructor of streamcontent takes into account the streams current position. Interestingly web application project defaults to razor pages. Net web page to return a different type of response such as an image but that is a. Here mudassar ahmed khan has explained with an example, how to return download file using web api in asp. Web api possesses a lightweight architecture and is perfect for smartphones and other devices, which possess limited bandwidth. Solved how can i display a pdf from byte array in mvc. I will start by mentioning that web api is not meant to deliver html pages.

Net core project, or to create a pdf document from an existing html page. They are web application razor pages, web application mvc, and web api see below. Net core web api project in which we need to generate a pdf report. I got that to return to a server side mvc controller and threw it into a simple return no view that displays the pdf just fine in the browser. Lets take a look at a simple example of web api by creating a new asp. Net web api using mvc and jquery for paging note it supports single page applications. If you wish to build a website please use regular mvc or something else. The action method is merely a public method with no special constraints on the input parameters and is forced to return a type that inherits from a system typethe actionresult type. How to download a file from an authenticated web api endpoint. Web api interview questions and answers dot net tutorials.

The rest of this is the details on everything thats happened. Net mvc action results and pdf content simple talk. The code above work for the file type like pdf, doc, mov, mp3, png, tif, jpeg, etc. Downloading pdf file from server to client using asp.

Dinktopdf is a crossplatform oriented library which is the wrapper for the webkit html to pdf library. Net backend controller which generates a pdf document object. Download the files as a zip using the green button, or clone the repository to your machine using git. Lets assume, we have a requirement to send a file based on the file type provided to the service request. In this tutorial we web layer, you must turn to spring mvc. Do not pass file path as a parameter as it is a security risk and it is used here only for example. This makes sense since the two have always been very similar. Net web api and how to return result in different formats like json and xml. When youre building apis on the web, there are several ways you can build apis on the web.

It enables you to return a type deriving from actionresult or return a specific type. Net web api is a web framework built on top of the. Most libraries offer a markup language or an api through which you draw. At first you think its going to be easy to download a file from web api, but as i discovered, it was not. This is a very regular requirement especially for online education or.

Net mvc is used to create web applications that return both views and data but asp. Net web api service irrespective of the accept header value 4. Everything works fine until the response received at client side. Your api will return something like return new filestreamresultpdfstream, application pdf where pdfstream is a stream of your pdf, either from a pdf generator that returns the pdf as an inmemory stream, or a stream from a file if it is on the disk. It is supposed to return pdfs from two different kinds of sources. This topic shows how to use bson in your web api controller server side and in a. I want to allow user to download a file, this file i will be creating on the server side. Downloading file using ajax and jquery after submitting. It will allow us to create a pdf document from our html string that we generate in the. Returning html or any file using web api peter rasmussen. How to return a pdf from a web api application 4 i have a web api project that is running on a server.