Read Octet Stream
I am exploring ASP.NET Web API and I have trouble with a Post method that has the signature HttpResponseMessage Post(SubmitFeed request) In order to take in an object as an argument it seems that it depends on the ContentType. If the ContentType is not 'application/xml' then the Post method will not get called even though the data is XML (in my case the ContentType was 'application/octet-stream'. The easiest fix would be to hard code the ContentType but how can I get the Post method to deserialize the content when the ContentType is 'application/octet-stream'?
Kevin Burton So it looks like I need to reframe the question. I guess I want 'conditional deserialization'. So when the ContentType is 'application/octet-stream' it will read in the data and properly deserialize it to the object but if the ContentType is 'application/xml' it seems that nothing needs to be done. I guess we should support ContentType of 'application/json' also. Is this possible? It is a matter of setting formatters: but again how do you deserialize if the content-type is 'application/octet-stream'? Unless you somehow create a harcoded custom MediaTypeFormatter for each route and type or have a list of types you expect and just try to deserialize.
This gets me started. In the blog I see the formatters added like: GlobalConfiguration.Configuration.Formatters.JsonFormatter. MediaTypeMappings.Add( new QueryStringMapping( 'format', 'json', 'application/json' ) ); GlobalConfiguration.Configuration.Formatters.XmlFormatter. MediaTypeMappings.Add( new QueryStringMapping( 'format', 'xml', 'application/xml' ) ); So just checking my understanding. By adding these two lines I have enabled conent negotiation. So if the ContentType is JSON then the object will get deserialized using the JSON serializer and if the ContentType is XML then the object will get created using XmlSerializer. Since I know that the ContantType can be 'application/octet-stream' I guess I need a custom media formatter and that doesn't seem to be addressed in this blog.
Octet-stream does not refer to a specific type of file -- it could be anything from a spreadsheet to an executable program. To open an unidentified file, you need to either figure out which program can open the file as a document or change the file's extension to run as a program. One of the simplest way to convert a stream to byte array in C# 4.0 is to use the MemoryStream and perform the CopyTo operation on the source stream to the Memory Stream. Below is a sample code snippet on how to convert a stream to byte array in C# 4.0. The ADO Stream Object is used to read, write, and manage a stream of binary data or text. A Stream object can be obtained in three ways: From a URL pointing to a document, a folder, or a Record object By instantiating a Stream object to store data for your application By opening the default Stream.
Do you know where I could find an example of this? Thanks again. Kevin Burton So just checking my understanding. By adding these two lines I have enabled conent negotiation.
PRB: Response.WriteFile cannot download a large file. Dim iStream As System.IO.Stream ' Buffer to read 10K bytes in chunk.
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So if the ContentType is JSON then the object will get deserialized using the JSON serializer and if the ContentType is XML then the object will get created using XmlSerializer. Since I know that the ContantType can be 'application/octet-stream' I guess I need a custom media formatter and that doesn't seem to be addressed in this blog. Do you know where I could find an example of this?
Octet Stream Firefox
Thanks again. You need to understand. I think I understand the default algorithm as described in the blog In this blog post, I am going to describe about the Default Content Negotiation Algorithm that gets shipped as part of ASP.NET MVC4 Beta. The Web API provides a lot of nice features with which you can build RESTful services.
Octet Stream
For more details, you can look at the release notes here. Rare candy cheat pokemon red. But is what is not covered in the blog is if the ContentType is application/nonexisting (or in my case application/octet-stream). I am not sure how to hook up a custom formatter that knows about the custom format (like application/octet-stream).