Solved: Re: POST: Workspace Item using restapi in C#.net 500-Internal Server Error

Anonymous · ‎10-11-2016

Hi,

I am using RestAPi to post items under workspace from Sql Server database.

I am using the same format explained in the documentation. But whenever I use POST method I am getting 500-Internal Server Error.

I even tried to test this API in postman also. But getting the same 500-internal server error.

I am able to read the data using GET .But POST is not working.

Do I need to have more permissions to POST items?

If you have any example please post.

Thanks in advance,

dany.poudrier · ‎10-11-2016

Hi,

If you don't mind giving us more details, like the json content and perhaps a screenshot of your postman config, it would greatly help in analyzing your issue.

Dany Poudrier

PLM Product Manager

Anonymous · ‎10-12-2016

Hi,

Thanks for the response. Please find the attached postman screenshot. Also below is the code. I am using C#.net and i'm not using Json format.

public XmlDocument POSTWorksapcesitems()
{
if (!_loggedIN) { return null; }

XmlDocument xmlDoc = new XmlDocument();
Properties obj = new Properties();
List<items> itemlist = new List<items>();
items new1 = new items();
new1.key = "BRAND";
new1.value = "TEST";
itemlist.Add(new1);

metafields meta = new metafields();
meta.itemsobj = itemlist;

List<metafields> metaobj = new List<metafields>();

metaobj.Add(new metafields() { itemsobj = itemlist });
//{"key":"BRAND","fieldData":{"value":"N/A","formattedValue":"N/A","dataType":"Single Line Text"}
//{"key":"BRAND","fieldData":{"value":"Adidas","formattedValue":"Adidas","dataType":"Single Line Text"}
string RequestUri = _tenantURI + "api/rest/v1/workspaces/54/items";
HttpClient client = new HttpClient();
client.BaseAddress = new Uri(RequestUri);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xml"));
HttpResponseMessage response = client.PostAsJsonAsync(RequestUri, metaobj).Result;
HttpWebRequest request = getHTTPRequest(_tenantURI + "api/rest/v1/workspaces/54/items.xml", "GET");
// HttpWebRequest request = getHTTPRequest(_tenantURI + "api/rest/v1/workspaces/11/items", "Post");
request.Headers.Add(HttpRequestHeader.Cookie, _authCookie);
HttpWebResponse response1 = (HttpWebResponse)request.GetResponse();
using (XmlReader reader = XmlReader.Create(response1.GetResponseStream(), new XmlReaderSettings() { CloseInput = true }))
{
xmlDoc.Load(reader);
}

return xmlDoc;
}

private HttpWebResponse post(string uri, string payload)
{
XmlDocument doc = new XmlDocument();
HttpWebRequest request = getHTTPRequest(uri, "POST");
request.Headers.Add(HttpRequestHeader.Cookie, _authCookie);

UTF8Encoding encoding = new UTF8Encoding();
request.ContentLength = encoding.GetByteCount(payload);
request.ContentType = "application/xml";

using (Stream reqStream = request.GetRequestStream())
{
reqStream.Write(encoding.GetBytes(payload), 0, encoding.GetByteCount(payload));
}
HttpWebResponse response = (HttpWebResponse)request.GetResponse();

return response;
}

private HttpWebRequest getHTTPRequest(string uri, string method)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = method;
request.Accept = "application/xml";

return request;
}

}

public class itemInsert
{
public string ContentType { get; set; }
public string Author { get; set; }
public string id { get; set; }
}

public class Properties
{
public List<metafields> prop { get; set; }

}
public class metafields
{
public List<items> itemsobj { get; set; }
}

public class items
{
public string key { get; set; }
public string value { get; set; }
}

Thanks,

dany.poudrier · ‎10-13-2016

Hi,

Thanks for the information. I will try to see if I can replicate your issue.

For the screenshot of postman, I would require the query information, not the result from the server. My goal is to abstract the C# part of your question and make sure that the arguments and headers are correct...

So if you could send this info I will be able to help you. Make sure I don't see any passwords in your screenshots 😉

Dany Poudrier

PLM Product Manager

dany.poudrier · ‎10-13-2016

Hi,

I stumbled into something interesting, don't know if it is related but it seems to fit the case:

We have V1 apis and V2 apis.

V1 API url are /api/rest/v1/workspaces/54/items

V2 API url are /api/v2/workspaces/54/items

On your screenshot you have /api/rest/v2/workspaces/54/items . The syntax is not correct as you either have a /rest/ too much or a typo to use v1 instead of v2.

From your code you are using v1 APIs, so I suggest you try again postman with the right url (/rest/v1/) and see if you can get postman request to work.

Dany Poudrier

PLM Product Manager

dany.poudrier · ‎10-13-2016

Hi,

I just tested with a similar setup with postman and got a 201 (Item created).

See example below. It think from your code example you may have missed the metaFields json property when doing your query...

Dany Poudrier

PLM Product Manager

Anonymous · ‎10-13-2016

Sorry,

I tested v1 which is not working and then I tested v2. Please find the attached screenshot.I am still getting the same error.

Thanks,

Suneetha

tony.mandatori · ‎10-13-2016

I took a look at the server logs and here is what i see.

ERROR - Rest Error on /api/rest/v1/workspaces/54/items\ncom.dms.customer.CustomerTransactionException: Error executing customer transaction [customer: BOATECHNOLOGY]\n\tat com.dms.customer.CustomerTransactionRunner.execute(CustomerTransactionRunner.ja...

Caused by: com.dms.api.rest2.common.APIException: The request contains no authorization information.
at com.dms.servletFilter.APIAuthorizationFilter.doFilter(APIAuthorizationFilter.java:61)

@timestamp

2016-10-13T21:56:56.985Z

So I think the issue is related to the way you are authenticating.

We usually do a login request in a separate tab.

Anonymous · ‎10-13-2016

I do not have any issue when I run the api in the browser and I got the data also.

I am trying to POST data using C#.net and getting 500 Internal Server Error.

Same error I am getting in POSTMAN also. Attached is the screen shot and I sent the c#.net code already.

If you can send us the sample code that would be great helpful.

Thanks,

dany.poudrier · ‎10-14-2016

Hi,

Is it possible that you are missing the login phase in your code?

In your C# application, you first need to authenticate to get a sessionid.

It seems consistent with the findings from Tony in the logs.

You can have a look at the Login and Authentication documentation that will give you the information you need to the endpoint and payload required to first login to the system, get the sessionid and after that add to your request header the cookie information.

Here is a small extract of the documentation :

Request header

To authenticate each request sent to the server after initial login, send the following in the header of the request:

Cookie: customer=[CUSTOMERTOKEN];JSESSIONID[sessionid]

Replace [CUSTOMERTOKEN] and [sessionid] respectively with the sessionid and customerToken values captured from the POST Login response.

Dany Poudrier

PLM Product Manager

Anonymous · ‎10-14-2016

Hi,

As I mentioned in the first email I do not have any issues to login and GET the data. I am getting error when POSTing the data only.In the previous email I sent only POST method.

Thanks,

Suneetha

tony.mandatori · ‎10-14-2016

In C#,

The code needs to retrieve and reuse the sessionid that is obtained when logging in - here are some snippets (not other libraries are being used here, so the code might not work as is for you: but the methods are standard).

var response = client.PostAsJsonAsync("rest/auth/1/login.json", pbody).Result;

if (response.IsSuccessStatusCode)

{

var content = response.Content.ReadAsStringAsync().Result;

dynamic elem = JsonConvert.DeserializeObject(content);

return elem.sessionid;

}

Then when sending the request, we need to set the cookie:

HttpClientHandler handler = new HttpClientHandler()

{

CookieContainer = new CookieContainer()

};

handler.CookieContainer.Add(new Uri(url), new Cookie("JSESSIONID", sessionid));

using (var client = new HttpClient(handler))

{

client.BaseAddress = new Uri(url);

client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

HttpResponseMessage response =

client.PostAsJsonAsync("api/rest/v1/workspaces/" + wsid + "/items/" + parent + "/boms", tobj).Result;

....

Note: I didn't write this code, but this is what I typically see.

Anonymous · ‎10-14-2016

Hi,

Below are my steps.

I have the login code as below.

After the below step i wrote a class to POST data.

public bool login(string userName, string password)
{
string tenantURIinput = _tenantURI + "rest/auth/1/login.xml";
string payload = String.Format("<authCommand><userID>{0}</userID><password>{1}</password></authCommand>", userName, password);

HttpWebResponse response = post(tenantURIinput, payload);

XmlDocument xmlDoc = new XmlDocument();

using (XmlReader reader = XmlReader.Create(response.GetResponseStream(), new XmlReaderSettings() { CloseInput = true }))
{
xmlDoc.Load(reader);
}

if (xmlDoc.DocumentElement.SelectSingleNode("/userAuthInfo/authStatus/id").InnerText == "200")
{
_authCookie = response.Headers["Set-Cookie"];
_loggedIN = true;
return true;
}
else
{
_authCookie = "";
_loggedIN = false;
return false;
}
}

Also below is my requirement.If you can suggest how to achieve this that would be great helpful for us.

We have a share point list and we would like to create a concurrent process to load sharepoint list to PLM workspace.

right now I am planning to create a ssis package to load sharepoint list in to sql server table,and then from sql table to Workspace using C#.net.

But if you have any other solutions please do let me know.

Please suggest the best way.

Thanks,

Suneetha

tony.mandatori · ‎10-15-2016

Thanks for responding.

The code you provided above looks a little different. I think we need to be careful on the format of the headers that are supplied.

I see that the code provide is using the following:

request.Headers.Add(HttpRequestHeader.Cookie, _authCookie);

So, could you print out _authCookie and ensure that it is formatted properly? The code that I have looks for an element called sessionid and then builds a string with a prefix of JSESSIONID:

Thanks,

Anonymous · ‎10-16-2016

Hi,

Thanks for your reply and I am able to create items using api.

Below is my code. After successfully logged in I am able to create the item.But If I have the json string like below(redcolor font) I am getting again 500 Internal server error. Can you please send me the format.

public bool login(string userName, string password)
{
string tenantURIinput = _tenantURI + "rest/auth/1/login.xml";
string payload = String.Format("<authCommand><userID>{0}</userID><password>{1}</password></authCommand>", userName, password);

HttpWebResponse response = post(tenantURIinput, payload);

XmlDocument xmlDoc = new XmlDocument();

using (XmlReader reader = XmlReader.Create(response.GetResponseStream(), new XmlReaderSettings() { CloseInput = true }))
{
xmlDoc.Load(reader);
}

if (xmlDoc.DocumentElement.SelectSingleNode("/userAuthInfo/authStatus/id").InnerText == "200")
{
_authCookie = response.Headers["Set-Cookie"];
_loggedIN = true;
string RequestUri = _tenantURI + "api/rest/v1/workspaces/54/items";
var httpWebRequest = (HttpWebRequest)WebRequest.Create(RequestUri);
httpWebRequest.Headers.Add(HttpRequestHeader.Cookie, _authCookie);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";

using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{

string json = @"{
'metaFields':{
'entry': [
{'key':'TYPE','value':'B-Temia'},
{'key':'QA_COMMENTS','value':'Testing by Suneetha'}]
} }";

streamWriter.Write(json.Replace("'","""));
streamWriter.Flush();
streamWriter.Close();
}

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
}
return true;
}
else
{
_authCookie = "";
_loggedIN = false;
return false;
}
}

dany.poudrier · ‎11-01-2016

Hi,

You need to use double quotes when writing json, it is the standard. Single quote is not.

From the www.json.org standard: "A value can be a string in double quotes, or a number, or true or false or null, or an object or an array. These structures can be nested."

So make sure your end results looks like this:

{ 
	"metaFields":{ 
		"entry": [ 
				{"key":"TYPE","value":"B-Temia"},
				{"key":"QA_COMMENTS","value":"Testing by Suneetha"}]
	} 
}

Dany Poudrier

PLM Product Manager

Fusion

POST: Workspace Item using restapi in C#.net 500-Internal Server Error

POST: Workspace Item using restapi in C#.net 500-Internal Server Error

POST: Workspace Item using restapi in C#.net 500-Internal Server Error

Request header

Request header

Forums Links

Post to forums