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