Return pdf file web api c

Select file new project in the visual studio menu bar. Hi, does anyone have an example of returning a pdf from a web api get. To return a file stream, you can use a filestreamresult. This article will give you more concrete information, mainly source code, if you need to implement a web api binding in. I will start by mentioning that web api is not meant to deliver html pages. Following is the straightforward set of code used to feed the generated pdf file into the response stream and flushing the complete data to the client as a stream. From what i can see and have learned, i am not too sure what the problem is. Here mudassar ahmed khan has explained with an example, how to return download file using web api in asp. I will be using visual studio 2017 for this development activity. We will also see how we can apply validations to the posted files easily using view models. But since you have not provided any information about either your code or the api, it is impossible to make any useful suggestions. Uploading a pdf file is the same as uploading any other type. How to download files from authenticated web api end points.

How to return a pdf from a web api application 4 i have a web api project that is running on a server. I have a web api project that is running on a server. Downloading an inmemory file using web api 2 no dogma blog. In this post, i am going to explain part 6 how to upload files in the asp. Pdf document display and file downloads with angular. Today, we will learn how to return an image from a web api. In this tutorial, we are going to learn how to download file in angular 6 using asp net core web api. Returning an image in web api method with fallback result. Do not pass file path as a parameter as it is a security risk and it is used here only for example. With that being said, you can have different reasons for having to do this. The trouble im having is sending the document back to a client mvc application.

At first you think its going to be easy to download a file from web api, but as i discovered, it was not. In this tutorial, im going to show you how to use angular to download a file from an authenticated asp. Net web api service irrespective of the accept header value 3. It is supposed to return pdfs from two different kinds of sources. The code above work for the file type like pdf, doc, mov, mp3, png, tif. 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. Net core web api project in which we need to generate a pdf report. We will also see about the different types of file action results that helps to return files from the server and even we created a custom file action result. Lets we initiate with a requirement of printing a payment receipt on demand using asp. In my case i wanted to load data from the database, perform some processing and return a subset of the data as a file. The web api will insert and retrieve files from sql server database using entity framework in asp.

By default, the process of file uploading is asynchronous. Add any sample pdf, word, excel, zip name them as sample files into it. Net core web api service, ensure that the following software is installed on the machine. Return file in standard controller and web api controller. We need to make sure the user is authenticated so anyone else going to the url wont have access to the file. Hello, i am working on an mvc 4 project and i need, in a controller, to return a file obtained from the database. Net core application setup with web api for pdf viewer service the following steps are used to create pdf viewer service. 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. In this article, we are going to discuss how to return files pdf wordexcel from web api service. Net web api is a web framework built on top of the. I am prototyping streaming a pdf file from a web api, and after the. If you have can you please get me some working code which returns excel. Net web api controller endpoint requiring authentication that returns a base64.

Downloading pdf file from server to client using asp. When we are working with rest service, it is very important to understand how to send files. How to return a pdf from a web api application stack overflow. Play with configuration, save, download or show pdf document in a web browser. Now we are done with generating the pdf file, now the time to send this pdf file as a content to the client and downloads it. This blog describes how to generate pdf s with asp. How to download a file from an authenticated web api endpoint. The file type will be identified by the client browser based on the given file name. I can see how to do this with normal mvc controllers, but not web. Should i use a normal controller as usual or a web api.

But when i return the file or stream back to the frontend, i will receive a blank but correct number of pages pdf file with a corrupted title. Instead of returning streamcontent as the content, i can make it work with bytearraycontent. By the end of this application, you will be able to render the image from a text through web api and an image file from your server or other hosted location. No physical pdf file is created on web api server drives. Uploading the file from the client is a basic operation.

How to create pdf viewer web service application in asp. There are many good tutorials available on the web about uploading large files in web api. Use webapi to download file as attachment using attributerouting fileattachmentcontroller. Downloading content to a local file is a common thing to do. You just need to make certain that the web server knows what to do with the file that it receives. In this tutorial you will learn how you can return any html file, content like form, images, and templates from web api in our webmthod we just need to add an attribute producestexthtml, this attribute indicates that the output will be in html not a simple string. If you are interested by the java implementation you can refer to the dedicated article. We need to make sure the user is authenticated so anyone else going to the url wont have access to the fil. So lets first create a new folder models and inside it the employee. In this article we are going to see about uploading and returning files in an mvc application.

This is pretty simple to download any kind of file, like. Find out how to easily create a pdf document in asp. Net core, azure, ef, nhibernate, linq, dapper, ibatis, aop, so on. This article explains how to transfer return filespdfdocexcelzip files from web api service. If you wish to build a website please use regular mvc or something else. The controller has a shortcut for this you can just return file. So you can easily put your data in to a stream, but then you need to return it in the right way from the webapi.