This blog describes how to generate pdf s with asp. Starting from mvc 5 web api 2 template using entity framework for server side data persistence using attribute routing server side mvc list angularjs minispa with mildly rich editor added list to minispa as alternate to server side list. Seed database with test data replace the code in the migrations\configuration. For the first time ever, im integrating an mvc website to an asp. Returning plain old text\html from mvc web api mango it. Net mvc action results and pdf content simple talk. Since you are not setting the accept header as applicationjson you always see the data always returned in the default xml mediatype.
Net web api 2 is a framework for building restful applications on the. The web api application programming interface feature is based on a special kind of controller to an mvc framework application, its normally as we do in mvc. Things you didnt know about action return types in asp. This attribute produces more descriptive response details for web api help pages generated by tools like swagger.
If youll just follow me to the next hallway, we can start to see code that shows what web api will do in certain common situations. I wanted to write a web api get controller method that. Hope this simple tutorial will help you get started with web api service. While going through the post, keep one thing in mind that web api is rest complaint, so it typically consists of get, put, post, delete methods. I can see how to do this with normal mvc controllers, but not web. We have created your first web api service and see how to simply test it without any further code or application. The report generates fine within ireport all formats and from the jasper server all formats. The answer is the wcf web api returns data in particular mediatype based upon the clients request i. The rest of this is the details on everything thats happened. Get, post, put are automatically mapped to corresponding controller methods. Net web api 2 web service both of which are coded by myself. Net web api allows you create api or based service or client endpoints. Web pdf viewer implemented as single page web application. Say you have a productcontroller that is concerned with crud operations on products, it might have a method like the below.
Net mvc4, it is much flexible framework to develop rest and ajax api for html5, asp. I have now tried to generate a number of reports with the rest web service api. As youll see in the next chapter, this helps you create an api that adheres more closely with the tenets of the rest architecture. Net web api application but i got stuck at one point for few hours. Web api return list of custom type json codeproject. Hello all, i already create a web api in vs 20 and it working good, my goals is to return also mvc view to the client for example. Lets assume, we have a requirement to send a file based on the file type provided to the service request.
In the first version of web api, you had two ways of creating response from an api action. Net mvc 4 is packed up with a new project template called web api. For information about what fluent api statements are doing behind the scenes, see the fluent api blog post. After that you will see new dialog will pop up for selecting your template and project type. In this post, i will build a basic web service by using asp.
The trouble im having is sending the document back to a client mvc application. I dont understand why after you help someone, they dont mark your post as the answer. For a project on the side im creating a web api which has to parse xml requests in a post. I have a web api project that is running on a server. If the request came from an api client, there is a best content type and so return the text verbatim with the best content type the assumptions here on our part are wrong. Here mudassar ahmed khan has explained with an example, how to return download file using web api in asp. With that being said, you can have different reasons for having to do this. Web pdf viewer implemented as single page web application using angularjs and web api. Web pdf viewer implemented as single page web application using angularjs and web api \. This article explains how to transfer return filespdfdocexcelzip files from web api service. An action isnt required to return any specific type.
It is supposed to return pdfs from two different kinds of sources. How about having your web api function return a string, and then return the javascript as a string. I will start by mentioning that web api is not meant to deliver html pages. Net core is an opensource, crossplatform framework for building modern, cloudbased web apps on windows, macos, and linux. Contentresult about return contentan api listing authors of docs.
When youre building apis on the web, there are several ways you can build apis on the web. Simple string returned by controller action is not a valid. Hi, does anyone have an example of returning a pdf from a web api get. Net core project, or to create a pdf document from an existing html page. The simplest web api controller can directly return the object in question. Dinktopdf is a crossplatform oriented library which is the wrapper for the webkit html to pdf library.
You cant write an action that returns text thats meant to be written verbatim in multiple formats. In this article, we are going to discuss how to return files pdf wordexcel from web api service. A largeitem is a pretty big object with lots of properties and long strings a user can get any one like so api\largeitem\1 which returns the largeitem having id 1. Net web api is an ideal platform for building restful applications on the. Ok so ive been getting my hands dirty with mvc 4 web api and must say that i love this technology. In that case, you had to construct it manually, and you bypassed all of the internal web api mechanisms formatters. However, merging these two into framework one also made it more diffucult to distinguish one from another. Hello all, note for this example, i am have used visual studio 2015 update 1 for ide and asp. Another important parameter is the object value in the writetostreamasync method. Web api rtm introduces a special type of delgatinghandler, called progressmessagehandler.
However, when i call the report using the web services i receive a blank pdf. It will allow us to create a pdf document from our html string that we generate in the. Today i have actually been using it to mock out calls to an external third party web service. However we often need to populate lists of these items for user selection and when doing that we never need the big rich hydrated object. Because were not building a client, we need a way to call the api.
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. For your convenience apress has placed some of the front. Action methods return a model rather than an actionresult in mvc, objects. Most libraries offer a markup language or an api through which you draw content on a surface. Results from actions that return objects that are not iactionresult types are serialized using the appropriate ioutputformatter implementation. Or from the file menu, select new and then project. For more information, see controller action return types in asp. This is a good thing, since mvc and web api share a lot of functionality, yet there always were subtle differences and code duplication. Net mvc provides a simple and versatile means of returning. Choose the right return type for webapi controllers. Id appreciate it if you can just look this over for me and let me know if im on the right track here as far as the integration goes. Net mvc 4 web application and here we are giving name as tutorialviewmodel then finally click on ok button. Hi, i have constructed a simple report within ireport to test the rest api. Unlike wcf web api does not required much configuration.
For now, the important thing to realize is that the entirety of this service call is. Returning html or any file using web api peter rasmussen. Wanted some opinions on something i have been working with, ive tried a few ways of structuring the way i retrieve and return data to my webapi, and im pretty happy with what i have so far, but i was looking for a comparison of the pros and cons. An api controller distinguishes itself from the normal controllers by the following.
834 250 18 1622 1162 965 508 591 227 935 388 257 1074 1254 985 782 1651 1026 709 1227 367 610 481 41 1077 948 1060