如何从.NET调用Node.js REST API

Question

If I put the jquery code below within the script tag within a html page and drag the html page into a web browser the call to the API specified in the URL is made and I get back a response in JSON format. So this works good.

The reason I want to use .NET for calling the rest API that is made in node.js is because I want to use the unit test utility that exist in visual studio.

So when I start the unit test the call to the REST API made in node.js should be made and then I can check whatever I want in the returned json format by using the assert.AreEqual.

I have googled a lot and there is several example about Unit Testing Controllers in ASP.NET Web API 2 but I don't want to unit test controller. I only want to call the REST API(made in node.js) when I start my unit test.

I assume to use .NET in the way I want is probably quite rare.

If it's not possible to use .NET and unit test in the way that I want here I will use another test framework. I hope to get some help from here.

Hope you understand what I mean.

$.ajax({
    type: 'GET',
    url: 'http://10.1.23.168:3000/api/v1/users/1',
    dataType: 'json',
    async: false,
    headers: {
    'Authorization': 'Basic ' + btoa('DEFAULT/user:password')
    },
    success: function(response) {
        //your success code
        console.log(response);
    },
    error: function (err) {
        //your error code
        console.log(err);   
    }   
});

Many thanks

Answer 1

Basically what you need to do is to call node.js' API from your C# test code in a same way you call it using jQuery. There are several ways to do it:

1. Use HttpWebRequest class https://msdn.microsoft.com/en-us/library/system.net.httpwebrequest%28v=vs.110%29.aspx
2. Use HttpClient class https://msdn.microsoft.com/en-us/library/system.net.http.httpclient%28v=vs.118%29.aspx It's more "RESTable" since it exposes methods to call HTTP methods like GET, PUT, POST and DELETE methods directly.
3. 3rd party software http://restsharp.org/

Generally I recommend approach #2.

Answer 2

Here's the example source with all the rest of the code.

Another resource is the docs.

This code snippet should be enough to get you where you need.

using(var client = newHttpClient())  
{  
    client.BaseAddress = newUri("http://localhost:55587/");  
    client.DefaultRequestHeaders.Accept.Clear();  
    client.DefaultRequestHeaders.Accept.Add(newMediaTypeWithQualityHeaderValue("application/json"));  
    //GET Method  
    HttpResponseMessage response = awaitclient.GetAsync("api/Department/1");  
    if (response.IsSuccessStatusCode)  
    {  
        Departmentdepartment = awaitresponse.Content.ReadAsAsync < Department > ();  
        Console.WriteLine("Id:{0}\tName:{1}", department.DepartmentId, department.DepartmentName);  
        Console.WriteLine("No of Employee in Department: {0}", department.Employees.Count);  
    }  
    else  
    {  
        Console.WriteLine("Internal server Error");  
    }  
}