具有简单类型参数的C＃Web Api Post方法

Question

I'm hoping someone can help. I have been asked to write a test application to consume a Web API.

The method I'm trying to consume, has the following signature:

[Transaction]
[HttpPost]
[Route("api2/Token/")]
public ApiToken Token(Guid companyId, DateTime dateTime, string passCode)

I've written a simple C# console application. However whatever I send to the API returns with a 404 error message and I can't see what my issue is.

My code to consume the API is as follows:

_client.BaseAddress = new Uri("http://localhost:1390");
_client.DefaultRequestHeaders.Accept.Clear();
_client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

var companyId = Guid.Parse("4A55A43A-5D58-4245-AD7C-A72300A69865");
var apiKey = Guid.Parse("FD9AEE25-2ABC-4664-9333-B07D25ECE046");
var dateTime = DateTime.Now;

var sha256 = SHA256.Create();
var bytes = Encoding.UTF8.GetBytes(string.Format("{0}:{1:yyyyMMddHHmmss}:{2}", companyId, dateTime, apiKey));
var hash = sha256.ComputeHash(bytes);

var sb = new StringBuilder();
foreach (var b in hash)
{
    sb.Append(b.ToString());
}

try
{
    Console.WriteLine("Obtain an authorisation token");

    var response = await _client.PostAsJsonAsync("api2/Token/", new { companyId = companyId, dateTime = dateTime, passCode = sb.ToString() });

}
catch (Exception e)
{
    Console.WriteLine(e.Message);
}

All examples I've googled seem to post an object to a Web API method that accepts an object. Is it possible to post multiple simple types?

Answer 1

I don't think it's possible, from the documentation ( https://docs.microsoft.com/en-us/aspnet/web-api/overview/formats-and-model-binding/parameter-binding-in-aspnet-web-api )

They've stated that

If the parameter is a "simple" type, Web API tries to get the value from the URI.

For complex types, Web API tries to read the value from the message body

You can try to use uri parameters instead

var response = await _client.PostAsJsonAsync("api2/Token/{companyId}/{dateTime}/{sb.ToString()}");