I am looking for an example of mvc 5 web application that consumes an asp. But the problem here is that we get 200 ok status code every time on a successful response. How to download a file from an authenticated web api endpoint. In my case i wanted to load data from the database, perform some processing and return a. The web api uses identity and token authentication. If you wish to build a website please use regular mvc or something else. This meant i needed to send something that was in memory back to the caller as a file. Crud operations using web api 2 and stored procedure with. Create a new api controller and copy the content of ebookcontroller from the downloaded project into it. To see the advantages of this interface, let us check an example in the version 1, and see its translation into version 2. Net web api is a web framework built on top of the.
Net web api 2 in the first version of web api, you had two ways of creating response from an api action. In the next article, we will discuss what is media type formatter and how it works with some examples. I know how the mvc 5 app will consume most of the web api calls. Net mvc has been introduced which can be used as the return type for web api controller actions. In my case i wanted to load data from the database, perform some processing and return a subset of the data as a file. Web api action method can contain any entity type as return type. In this article, we are going to discuss how to return files pdf wordexcel from web api service. And in the case of void, the web api return 204 no content.
The web api response object already includes support for a location header. However, web api 2 now wraps some of the functionality available in version 1 to simplify the process even more. First we need to create a controller which inherits apicontroller and method which will return an image. A web api 2 action method return types can be any of the following. Pdf document display and file downloads with angular. How to return a pdf from a web api application stack overflow. Introduction web api has been around for some years now. So web api content negotiation is a mechanism, or algorithm, used to determine, based on the clients request, which media type formatter is going to be used to return an api response. It is supposed to return pdfs from two different kinds of sources. This blog describes how to generate pdf s with asp.
Net web api framework have been released so far, with web api 2. Net web api to create a web api that returns a list of products. Hi, does anyone have an example of returning a pdf from a web api get. From what i can see and have learned, i am not too sure what the problem is. Say you have a productcontroller that is concerned with crud operations on products, it might have a method like the below. A media type, also called a mime type, identifies the format of a piece of data. Choose the web option in installed templates and choose asp. Fine and simple but it is simpler in the web api 2. Web api is essentially used as a mediator between client and server.
Return a base64 representation of the file instead of the raw file contents 3. In this article, we will explore some of the new features introduced in asp. Add any sample pdf, word, excel, zip name them as sample files into it. Open vs click ok and another window will appear with project template. Net web api 2 to create a web api and that returns a list of employees.
Javascript the good parts or clean code i gave up reading books on software development a long time ago. A web api controller action can return any of the following. The simplest web api controller can directly return the object in question. Net core is an opensource, crossplatform framework for building modern, cloudbased web apps on. Lets start open visual studio 2015, click file, new, then project. No physical pdf file is created on web api server drives. Here ill also show you how to create the step by step web api 2 in asp. Or, from the file menu, select new and then project. The trouble im having is sending the document back to a client mvc application. Net backend controller which generates a pdf document object. Net core web api project in which we need to generate a pdf report. This tutorial shows how to support additional media formats in asp. How to download files from authenticated web api end points.
It exposes the server side information to the client like website, android, iphone and etc. I will start by mentioning that web api is not meant to deliver html pages. The frontend web page uses jquery to display the results. For example, when we send the file type as pdf, service will return pdf file if we.
Net core web api returning a filestream may 31, 2019 by robert 3 comments so i built a service that collects information, say, log information, and sends it down to a client. Follow the steps mentioned below with images to create a web api 2 project. 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. Returning an image in web api method with fallback result. When prompted for the type of scaffolding to add, select web api 2 controller empty from the list. In this guide, well use wideworldimporters database to create a web api. I have a web api project that is running on a server.
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. We need to make sure the user is authenticated so anyone else going to the url wont have access to the file. Lets create a web api with the latest version of asp. In the following text i will demonstrate how this is doable with microsoft web api and asp. I can see how to do this with normal mvc controllers, but not web. The following code sends a get request that accepts bson, and then deserializes the bson payload in the response. Downloading an inmemory file using web api 2 no dogma blog. In this tutorial, im going to show you how to use angular to download a file from an authenticated asp. In this window give a name to the project and solution. In this article, i am going to disclose how to upload multipartformdata, picture, pdf, excel, etc. Choose the right return type for webapi controllers. Lets assume, we have a requirement to send a file based on the file type provided to the service request. We can create the same kind of response with a single line of code. It is a very efficient and lightweight technology to build restful web services in.
This topic shows how to use bson in your web api controller server side and in a. Please change the books path strings in newly created controllers. Start visual studio and select new project from the start page. As mentioned in the first example of what is web api action results, we can use any entity type as the return type.
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