This works for .Net 2.0 C# but has some interesting things to check.
WebClient wc = new WebClient();
wc.Proxy = WebRequest.GetSystemWebProxy();
//wc.Headers[HttpRequestHeader.AcceptEncoding] = "gzip, deflate";
string strLogin = wc.DownloadString("http://localhost:8080/bonita/loginservice?username=walter.bates&password=bpm&redirect=false");
wc.Headers[HttpRequestHeader.Cookie] = wc.ResponseHeaders[HttpResponseHeader.SetCookie].ToString();
string strCookie = wc.ResponseHeaders[HttpResponseHeader.SetCookie].ToString();
string strProcesses = wc.DownloadString(“http://localhost:8080/bonita/API/bpm/process?p=0”);
First of all you should know how to determine that the executed operation is successful ( login, getProcesses and whatever) When you try to login you will always get the header (for example “JSESSIONID=50E509D37AC28E2D725CBD45A8112FA7; Path=/bonita; HttpOnly”) and OK 200 even if your login attempt in Bonita is unsuccesful.
For the successful login on the previous example
- You must Pass mandatory form data: username, password and redirect You must also be sure to pass redirect in lower case .“False” //will not work, “false” // will work. So for .Net suppose you have a property-> Boolean redirect. You must make it lowercase with
redirect.ToString().ToLower()
Let’s say you try to login only with username and password without passing redirect. the result is that you will get both OK 200 and the header but you will also get a response which is wrong (the response must be empty), so on the next request (i.e getProcesses) you’ll get (401) Unauthorized. Guess the results you will have if you pass redirect=False instead of redirect=false. Exactly the same.
2)You must get:
strLogin=“” // the body of the response must be empty
strCookie=“JSESSIONID=4F67F134840A2C72DBB968D53772FB22; Path=/bonita; HttpOnly”
For the successful getProcesses on the previous example you pass the header you got from login →
wc.Headers[HttpRequestHeader.Cookie] = wc.ResponseHeaders[HttpResponseHeader.SetCookie].ToString();
(or which means an empty json)
If the cookie is not passed correctly you will get again 401 error.
Actually I spend a lot of time to find out that my app doesn’t work because of the lowercase!
Solution for .NET 4.5.1
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
using System.Web;
namespace BonitaRestApi
{
class BonitaApi
{
private CookieCollection collection;
string strCookietoPass;
string sessionID;
static void Main(string[] args)
{
BonitaApi obj = new BonitaApi();
Task login = new Task(obj.Login);
login.Start();
login.Wait();
Console.ReadLine();
Task GetProcesses = new Task(obj.GetProcesses);
GetProcesses.Start();
GetProcesses.Wait();
Console.ReadLine();
Task logout = new Task(obj.Logout);
logout.Start();
logout.Wait();
Console.ReadLine();
}
public async void Login()
{
const string url = "http://localhost:8080/bonita/";
var cookies = new CookieContainer();
var handler = new HttpClientHandler();
handler.CookieContainer = cookies;
using (var client = new HttpClient(handler))
{
var uri = new Uri(url);
client.BaseAddress = uri;
//client.DefaultRequestHeaders.Accept.Clear();
//client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("username", "helen.kelly"),
new KeyValuePair<string, string>("password", "bpm"),
new KeyValuePair<string, string>("redirect", "false"),
new KeyValuePair<string, string>("redirectUrl", ""),
});
HttpResponseMessage response = await client.PostAsync("loginservice", content);
if (response.IsSuccessStatusCode)
{
var responseBodyAsText = await response.Content.ReadAsStringAsync();
if (!String.IsNullOrEmpty(responseBodyAsText))
{
Console.WriteLine("Unsuccessful Login.Bonita bundle may not have been started, or the URL is invalid.");
return;
}
collection= cookies.GetCookies(uri);
strCookietoPass = response.Headers.GetValues("Set-Cookie").FirstOrDefault();
sessionID = collection["JSESSIONID"].ToString();
Console.WriteLine(string.Format("Successful Login Retrieved session ID {0}", sessionID));
// Do useful work
}
else
{
Console.WriteLine("Login Error" + (int)response.StatusCode + "," + response.ReasonPhrase);
}
}
}
public async void Logout()
{
const string url = "http://localhost:8080/bonita/";
var cookies = new CookieContainer();
var handler = new HttpClientHandler();
handler.CookieContainer = cookies;
using (var client = new HttpClient(handler))
{
var uri = new Uri(url);
client.BaseAddress = uri;
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("redirect", "false")
});
HttpResponseMessage response = await client.PostAsync("logoutservice", content);
if (response.IsSuccessStatusCode)
{
var responseBodyText = await response.Content.ReadAsStringAsync();
if (!String.IsNullOrEmpty(responseBodyText))
{
Console.WriteLine("Unsuccessful Logout.Bonita bundle may not have been started, or the URL is invalid.");
return;
}
Console.WriteLine("Successfully Logged out.");
}
else
{
Console.WriteLine("Logout Error" + (int)response.StatusCode + "," + response.ReasonPhrase);
}
}
}
public async void GetProcesses()
{
var handler = new HttpClientHandler();
Cookie ok = new Cookie("Set-Cookie:", strCookietoPass);
handler.CookieContainer.Add(collection);
using (var client = new HttpClient(handler))
{
var builder = new UriBuilder("http://localhost/bonita/API/bpm/process");
builder.Port = 8080;
var query = HttpUtility.ParseQueryString(builder.Query);
query["p"] = "0";
query["c"] = "10";
builder.Query = query.ToString();
Uri uri= new Uri(builder.ToString());
client.BaseAddress = uri;
HttpResponseMessage response = await client.GetAsync(uri.ToString());
if (response.IsSuccessStatusCode)
{
var responseBodyText = await response.Content.ReadAsStringAsync();
if (String.IsNullOrEmpty(responseBodyText))
{
Console.WriteLine("Unsuccessful GetProcesses.Bonita bundle may not have been started, or the URL is invalid.");
return;
}
Console.WriteLine("Successfully GetProcesses:" + responseBodyText);
}
else
{
Console.WriteLine("GetProcesses Error" + (int)response.StatusCode + "," + response.ReasonPhrase);
}
}
}
}
}