Find below sample code to call API.
public void callAPI(str _requestJson,str _url)
{
System.Net.HttpWebRequest request;
System.Net.HttpWebResponse response;
CLRObject clrObj;
System.Exception ex;
System.Net.WebHeaderCollection httpHeader;
System.IO.Stream requestStream, responseStream;
System.IO.StreamWriter streamWriter;
RefRecId refrecid = 0;
System.Byte[] bytes = null;
System.Text.Encoding encoding = null;
str token;
try
{
httpHeader = new System.Net.WebHeaderCollection();
new InteropPermission(InteropKind::ClrInterop).assert();
clrObj = System.Net.WebRequest::Create(_url);
request = clrObj;
// API Authentication. It can vary for different API providers
httpHeader.Add("accessToken", token);
request.set_Headers(httpHeader);
request.Method = "POST";
request.ContentType = "application/json";
requestStream = request.GetRequestStream();
streamWriter = new System.IO.StreamWriter(request.GetRequestStream());
streamWriter.Write(_requestJson); // writing JSON
streamWriter.Flush();
streamWriter.Close();
/*
if(_requestJson)
{
// info(_requestJson);
encoding = System.Text.Encoding::ASCII;//get_UTF8();
bytes = encoding.GetBytes(_requestJson);
httpRequest.set_ContentLength(bytes.get_Length());
stream = httpRequest.GetRequestStream();
stream.Write(bytes,0,bytes.get_Length());
stream.Close ();
}*\
response = request.GetResponse();
System.IO.StreamReader streamRead = new System.IO.StreamReader(response.GetResponseStream());
str res = streamRead.ReadToEnd().ToString();
info(res);
}
catch
{
//exception
ex = CLRInterop::getLastException().GetBaseException();
error(ex.get_Message());
}
}