Can we return file result from API?
Let’s assume, we have a requirement to send a file based on the file type provided to the service request. For example, when we send the file type as PDF, service will return PDF file if we send Doc, service will return Word document. (I have taken this sample to cover all types of files).
How do I use FileStreamResult?
FileStreamResult Sends binary content to the response by using a Stream instance when we want to return the file as a FileStream.
- public FileStreamResult CreateFile()
- {
- var stream = new MemoryStream(Encoding.ASCII.GetBytes(“Hello World”));
- return new FileStreamResult(stream, new MediaTypeHeaderValue(“text/plain”))
- {
How do I return a web API file?
How to return a file but not attachment in . net web api?
- [HttpGet]
- public IActionResult Get()
- {
- var file = System. IO. File. ReadAllBytes(“1.pdf”);
- HttpContext. Response. Headers. ContentDisposition = “inline;filename=1.pdf”;
- return File(file, “application/pdf”, “1.pdf”);
- }
How do I get files from Web API?
In this article, I will use a demo Web API application in ASP.NET Core to show you how to transmit files through an API endpoint. In the final HTML page, end users can left-click a hyperlink to download the file or right-click the link to choose “ Save Link As ” in the context menu and save the file.
What is FileContentResult in C#?
FileContentResult class is used when Binary Data (Byte Array) needs to be downloaded as File. Download Code Sample. Download Free Word/PDF/Excel API. In this article I will explain with an example, how to use FileContentResult in .
Does Filestreamresult dispose of the stream?
Yes. It uses a using block around the stream, and that ensures that the resource will dispose.
How do I view API files?
Programs that open and convert API files:
- Acrobat by Adobe Systems Incorporated. See the previous paragraphs to learn more about the main application.
- 1st Reader.
- Application Program Interface.
- Lotus Printer Driver Info by IBM.
- Photoshop (Ink Colors Setup) by Adobe Systems Incorporated.
- WebObjects (Interface) by Apple Inc.
What is RedirectResult in MVC?
RedirectResult. RedirectResult is an ActionResult that returns a Found (302), Moved Permanently (301), Temporary Redirect (307), or Permanent Redirect (308) response with a Location header to the supplied URL. It will redirect us to the provided URL, it doesn’t matter if the URL is relative or absolute.
How do I connect API to my website?
How to Use an API
- Select an API. First things first, you’ll want to find an API you could incorporate into your business.
- Get an API key.
- Review the API documentation.
- Write a request to an endpoint.
- Connect your app.
How do I return a file from a web API action?
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 I return a file response from actionresult?
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. But most times we still want to use the generic ActionResult because it covers many other useful return types, such as BadRequest, NoContent, and so on.
Why does httpresponsemessage return a derived iactionresult?
If this is ASP.net-Core then you are mixing web API versions. Have the action return a derived IActionResult because in your current code the framework is treating HttpResponseMessage as a model.
How do I set the ContentType of a file?
You can set the value for contentType according to your file type. In the File method, the third parameter fileDownloadName determines the value for the filename attribute in the content-disposition HTTP response header. Browsers treat this value as the top priority to dictate the filename when downloading the file.