web api – Anh Tèng nè

Returning binary file from controller in ASP.NET Web API

January 10, 2018 Tèng Comments 0 Comment

Source Try using a simple HttpResponseMessage with its Content property set to a StreamContent:

// using System.IO;
// using System.Net.Http;
// using System.Net.Http.Headers;

public HttpResponseMessage Post(string version, string environment,
    string filetype)
{
    var path = @"C:\Temp\test.exe";
    HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK);
    var stream = new FileStream(path, FileMode.Open, FileAccess.Read);
    result.Content = new StreamContent(stream);
    result.Content.Headers.ContentType = 
        new MediaTypeHeaderValue("application/octet-stream");
    return result;
}

// using System.IO;

// using System.Net.Http;

// using System.Net.Http.Headers;

public HttpResponseMessage Post(string version, string environment,

string filetype)

{

var path = @"C:\Temp\test.exe";

HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK);

var stream = new FileStream(path, FileMode.Open, FileAccess.Read);

result.Content = new StreamContent(stream);

result.Content.Headers.ContentType =

new MediaTypeHeaderValue("application/octet-stream");

return result;

}

A few things to note about the stream used: You must not call stream.Dispose(), since Web API still needs to be able to access it when it processes the controller method’s result to send data back to the client. Therefore, do not use a using (var stream = …) block. Web API will dispose the stream for you. Make sure that the stream has its current position set to 0 (i.e. the beginning of the stream’s data)….

WEB API 2 EXPLORING PARAMETER BINDING

January 1, 2018 Tèng Comments 0 Comment

Source This article demonstrates how to call or map Web API methods with different types of parameters using XML, Json and Urlencoded formats. It shows how simple parameters, objects parameters and array parameters can be sent either in the body of the Http request or in the Url itself. This all works per default in Web API and if that’s not enough, you can customize it yourself. code: https://github.com/damienbod/WebApiParameters Simple Parameters Example 1: Sending a simple parameter in the Url 1 2…

Send string array to web api

January 1, 2018 Tèng Comments 0 Comment

You can send it in the body or the URL URL:

<span class="com">// http://localhost:49407/api/values/example6?paramsObject=2,paramsObject=4,paramsObject=9</span>
<span class="pun">[</span><span class="typ">Route</span><span class="pun">(</span><span class="str">"example6"</span><span class="pun">)]</span>
<span class="pun">[</span><span class="typ">HttpGet</span><span class="pun">]</span>
<span class="kwd">public</span> <span class="kwd">string</span> <span class="typ">GetListFromUri</span><span class="pun">([</span><span class="typ">FromUri</span><span class="pun">]</span> <span class="typ">List</span><span class="str">&lt;int&gt;</span><span class="pln"> paramsObject</span><span class="pun">)</span>
<span class="pun">{</span>
  <span class="kwd">if</span> <span class="pun">(</span><span class="pln">paramsObject </span><span class="pun">!=</span> <span class="kwd">null</span><span class="pun">)</span>
  <span class="pun">{</span>
    <span class="kwd">return</span> <span class="str">"recieved a list with length:"</span> <span class="pun">+</span><span class="pln"> paramsObject</span><span class="pun">.</span><span class="typ">Count</span><span class="pun">;</span>
  <span class="pun">}</span>
 
  <span class="kwd">return</span> <span class="str">"NOTHING RECIEVED..."</span><span class="pun">;</span>
<span class="pun">}</span>

// http://localhost:49407/api/values/example6?paramsObject=2,paramsObject=4,paramsObject=9

[Route("example6")]

[HttpGet]

public string GetListFromUri([FromUri] List<int> paramsObject)

{

if (paramsObject != null)

{

return "recieved a list with length:" + paramsObject.Count;

}

return "NOTHING RECIEVED...";

}

or in the body:

<span class="pun">[</span><span class="typ">Route</span><span class="pun">(</span><span class="str">"example8"</span><span class="pun">)]</span>
<span class="pun">[</span><span class="typ">HttpPost</span><span class="pun">]</span>
<span class="kwd">public</span> <span class="kwd">string</span> <span class="typ">GetListFromBody</span><span class="pun">([</span><span class="typ">FromBody</span><span class="pun">]</span> <span class="typ">List</span><span class="pun">&lt;</span><span class="typ">ParamsObject</span><span class="pun">&gt;</span><span class="pln"> paramsList</span><span class="pun">)</span>
<span class="pun">{</span>
  <span class="kwd">if</span> <span class="pun">(</span><span class="pln">paramsList </span><span class="pun">!=</span> <span class="kwd">null</span><span class="pun">)</span>
  <span class="pun">{</span>
     <span class="kwd">return</span> <span class="str">"recieved a list with length:"</span> <span class="pun">+</span><span class="pln"> paramsList</span><span class="pun">.</span><span class="typ">Count</span><span class="pun">;</span>
  <span class="pun">}</span>
 
  <span class="kwd">return</span> <span class="str">"NOTHING RECIEVED..."</span><span class="pun">;</span>
<span class="pun">}</span>



<span class="typ">User</span><span class="pun">-</span><span class="typ">Agent</span><span class="pun">:</span> <span class="typ">Fiddler</span>
<span class="typ">Content</span><span class="pun">-</span><span class="typ">Type</span><span class="pun">:</span><span class="pln"> application</span><span class="pun">/</span><span class="pln">json
</span><span class="typ">Host</span><span class="pun">:</span><span class="pln"> localhost</span><span class="pun">:</span><span class="lit">49407</span>
<span class="typ">Content</span><span class="pun">-</span><span class="typ">Length</span><span class="pun">:</span> <span class="lit">91</span>
 
<span class="pun">[{</span><span class="str">"Id1"</span><span class="pun">:</span><span class="lit">3</span><span class="pun">,</span><span class="str">"Id2"</span><span class="pun">:</span><span class="lit">76</span><span class="pun">,</span><span class="str">"Id3"</span><span class="pun">:</span><span class="lit">19</span><span class="pun">},{</span><span class="str">"Id1"</span><span class="pun">:</span><span class="lit">56</span><span class="pun">,</span><span class="str">"Id2"</span><span class="pun">:</span><span class="lit">87</span><span class="pun">,</span><span class="str">"Id3"</span><span class="pun">:</span><span class="lit">94</span><span class="pun">},{</span><span class="str">"Id1"</span><span class="pun">:</span><span class="lit">976</span><span class="pun">,</span><span class="str">"Id2"</span><span class="pun">:</span><span class="lit">345</span><span class="pun">,</span><span class="str">"Id3"</span><span class="pun">:</span><span class="lit">7554</span><span class="pun">}]</span>

[Route("example8")]

[HttpPost]

public string GetListFromBody([FromBody] List<ParamsObject> paramsList)

{

if (paramsList != null)

{

return "recieved a list with length:" + paramsList.Count;

}

return "NOTHING RECIEVED...";

}

User-Agent: Fiddler

Content-Type: application/json

Host: localhost:49407

Content-Length: 91

[{"Id1":3,"Id2":76,"Id3":19},{"Id1":56,"Id2":87,"Id3":94},{"Id1":976,"Id2":345,"Id3":7554}]

Here’s example of parameters bindings: http://damienbod.wordpress.com/2014/08/22/web-api-2-exploring-parameter-binding/

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Tag: web api

Returning binary file from controller in ASP.NET Web API

January 10, 2018 Tèng Comments 0 Comment

WEB API 2 EXPLORING PARAMETER BINDING

January 1, 2018 Tèng Comments 0 Comment

Send string array to web api

January 1, 2018 Tèng Comments 0 Comment