How do I return an API file?

How do I return an API file?

How to Return Files From Web API

1. Prerequisite.
2. Convert Required file into Bytes.
3. Adding bytes to MemoryStream.
4. Adding MemoryStream object to the HttpResponseMessage Content.
5. We need to talk about the ContentType here.
6. Result.

How do I return a file to ActionResult?

FileContentResult is an ActionResult that when executed will write a binary file to the response.

1. public FileContentResult DownloadContent()
2. {
3. var myfile = System.IO.File.ReadAllBytes(“wwwroot/Files/FileContentResult.pdf”);
4. return new FileContentResult(myfile, “application/pdf”);
5. }

Can we return a file from web API?

Return a File in ASP.NET Core Web API In ASP.NET Core, a Web API action method usually returns an ActionResult object. When we want to return a file response, we can explicitly set the return type for the action method to be FileResult , which is a type inherited from ActionResult .

How do you call a different view from a controller?

4 Answers. To directly answer your question if you want to return a view that belongs to another controller you simply have to specify the name of the view and its folder name. Also, you’re talking about using a read and write method from one controller in another.

Which action results will return a file content?

The ActionResult class is the base for all the action results. The following is a list of different kind of action results and their behavior….ASP.NET Core – Action Results.

Name	Behavior
FileContentResult	Returns file content
FilePathResult	Returns file content
FileStreamResult	Returns file content.
EmptyResult	Returns nothing

How to return a file stream from a rest controller?

Request comes in, JSON is returned on the response. But what if you want to return a file stream in your response? It’s actually pretty easy, it’s just not very well documented. Just remove the produces block from your @RequestMapping annotation, and the @ResponseBody annotation from the method signature.

How to return a stream as a file?

FileStreamResult classes us useful for Sending binary content. Here you have a stream and want to return stream content as a file. Here we will be returning an image from the Controller method. Using the below technique controller can return any other types of images like .bmp or .jpg etc. For png file we need to use mimeType = “image/png.

How to return file from spring @ controller having OutputStream?

Now the @Service calls Dropbox API and downloads the file by specified file_name, and puts it all to the OutputStream, and then passes it (in some form.. maybe OutputStream, byte [] array or any other object – I dont know which is better to use) to the controller:

How to return a file stream from WebAPI?

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. To return a file stream, you can use a FileStreamResult . This lets you specify the stream, the MIME type, and some other options (like the file name).