Web services and sessions

how to maintain a session with coldfusion web service?

Many sites handle this by generating a transaction key on the
intial web service contact and then forcing the client to echo the
transaction key back for every web service method called. You could
then store your CF variables in a database using the transaction
key as the way to store/retrieve them. Easiest way would be to
serialize a CF structure using <cfwddx>. Given, you wouldn't
be using your typical coldfusion session variables (which I don't
think you could use anyway via webservice as there is no way to id
the session) - but it should work about the same. You would just
need to schedule a task to go through and remove old data on a
regular basis, as the "session" data would eventually fill your
DB.

Similar Messages

Web Services and session management

Hello,
I am building an application using tomcat and axis2 for ws support. Is there any (standard, preferably) way to maintain session information accross multiple soap invocations? Or maybe even manage the sessions by myself "logically" and send something like a header identifying the session key with each request?
Any comments would be appreciated,
Thx

Hi
Axis2 offers two ways of doing session management. The first way uses a cookie. You need to specify scope="transportsession" in your services.xml, and ensure that cookies are enabled.
The second way is not dependent on HTTP cookies, but uses WS-Addressing headers instead. It is scope="soapsession". If you use the Axis2 client then you can do this very simply use setManageSession(true) on your ServiceClient.
e.g. stub._getServiceClient.setManageSession(true);
If you use another client, you will need to get the header from the response message and add it to future requests yourself.
Can I suggest you move this discussion to [email protected] where all the axis2 experts hang out?
Paul

Web service and servlets in the same project...web.xml?

Hello, I have a problem with my web service.
I have a server, which displays a web service. I programmed this service with JAXRPC.
I have a client, in another directory. I succeded in compiling, deploying and running the web service.
The problem is that after I tried to integrate this service in an existing project. This project contains servlets. In these servlets, I'm using sessions.
These servlets are on the same side as the server of the web service. Because of the implementation of my code, I'd like to use in the class that represents the server of the service, the same session as the one I'm using in the servlets.
But of course, it's not working by itself. I know there's something to do with the web.xml files.
The thing is that I created a web.xml file for the service, and another for the servlets.
I was thinking of joining both of them in one xml file, but everything crashes then...
Could someone tell me how to create a project with a web service and servlets, and mostly how to configure the xml file??
Thanks for any help
Philippe

Hello, I have a problem with my web service.
I have a server, which displays a web service. I programmed this service with JAXRPC.
I have a client, in another directory. I succeded in compiling, deploying and running the web service.
The problem is that after I tried to integrate this service in an existing project. This project contains servlets. In these servlets, I'm using sessions.
These servlets are on the same side as the server of the web service. Because of the implementation of my code, I'd like to use in the class that represents the server of the service, the same session as the one I'm using in the servlets.
But of course, it's not working by itself. I know there's something to do with the web.xml files.
The thing is that I created a web.xml file for the service, and another for the servlets.
I was thinking of joining both of them in one xml file, but everything crashes then...
Could someone tell me how to create a project with a web service and servlets, and mostly how to configure the xml file??
Thanks for any help
Philippe

Plugin based Web Service with session management

I am trying to make a web service in java with jax-ws that should support extensions to the service without rebuilding the project. I thought it might be possible to make a standard web service and the let each plugin create their own service, making the client side plugin point to both the standard service and the plugin specific one. This way I could have user management and such in the standard service and the more plugin specific one in an other service. The problem is though, how do I make a common session for all the services? All services are running at the same server and on the same domain name.
I checked the HTTP headers and found out that the JSESSIONID was changing when I created a new port on the client side. I was trying to implement a SOAPHandler to edit the cookie in the HTTP header, hoping that this will lead to the same session across the services. But found it hard. It was no problem reading the "Set-cookie" header, setting the cookie on the new requests was harder, as the CookieJar object seems to be internal [1]. And the MessageContext.HTTP_REQUEST_HEADERS wasn't created at the time my handlers run. Is there an easy solution to this?
I am not sure if my idea is a good solution to the main problem, and all other ideas are more than welcome. I hope it is possible to extend the features of my server without rebuilding the project. If anything is unclear, feel free to ask :)
[1] com.sun.xml.internal.ws.client.http.CookieJar

Adhir_Mehta wrote:
Could you explain plug in scenario with one example?Ok. We have not chosen exactly how to do this, but the idea is that someone may be able to extend the functionality of our server without rebuilding the project. We thought of something like a jar file with a implementation of some abstract classes. It should at least only be necessary to redeploy the project into the web container. The problem is; how do we let the plugins extend our web interface? One solution we thought of was to let each plugin have it's own service and dynamicly link to the plugin services from the main service that we provide as standard in our server. This way we may have some kind of plugin support on the clients as well, making the client side plugins know what kind of service it needs on the server side and thus extending the functionality all together.
Hope that explains our scenario. Feel free to comment and add new ideas :)
Regarding session management, its not advisable to manage the session in web services since that way it will become non interoperable.The documentation we found regarding sessions and jax-ws was all doing sessions with HTTPSessions, and to let the web container handle that.
On the server side
    @Resource
    private WebServiceContext wsContext;
    private HttpSession getSession() {
        MessageContext mc = wsContext.getMessageContext();
        return ((javax.servlet.http.HttpServletRequest)mc.get(MessageContext.SERVLET_REQUEST)).getSession();
    HttpSession session = getSession();
    session.setAttribute("User", user);On the client side
((BindingProvider)port).getRequestContext().put(BindingProvider.SESSION_MAINTAIN_PROPERTY,true);Do you have other standard options for us on how to do session management? All ideas are more than welcome

Web service authentication/session management using Axis2

I'm creating a web service using Axis2 where the client will need to login to the service and maintain a session. I'm trying to figure out a good way to do this. I've read the article on the following link:
http://www.developer.com/services/article.php/3620661/Axis2-Session-Management.htm
and it describes 4 main ways of doing this: Request Session Scope, Soap session scope, Transport session scope, and Application scope. However, it doesn't give much detail in actually implementing this. It says to add a parameter to services.xml like this:
<service name="foo" scope=" transportsession">
</service>
but what about the actual code that goes in the server and client to actually handle the login process and verify the username/password in an SQL database on the server? I'm having a lot of trouble finding a good tuturial on this. Can anyone point me in the right direction? I'm also open to other ideas that don't necessarily directly involve Axis2.

Session management for a web service and already answered. Locking.

Java app with web service and servlets

Hi. I intend to make a java application which exposes some methods as a web service and as jsp/servlets. It's core functionality is not really web centric, but its more a java app with a web tier. I am not sure about how the architecture of such a system would look like using the java platform. I currently see three options:
1. Run everything in a servlet container like tomcat. I hesitate to do this because i would be putting a lot of functionality which isn't about the web into a servlet container. Also, I have a lot of application scope data that is maintained and shared by all servlets/web services. However, it would be really easy just to put everything into tomcat and use ServletContext to maintain some global objects.
2. Use a Java EE to seperate application/business logic and data access into session beans and entity beans. I hesitate to this because it seem a bit overkill because the system isn't very big or complex right now. It also means that I would have to learn to use EJB's instead of just using some POJOs.
3. Run the web tier in a servlet container and the main app in a separate JVM, and then connect the tier by sending serialized objects over TCP sockets. I don't like writing network code but at least there is some separation of the tiers.
What would you do? Maybe I have overlooked a much better solution to the problem?
Let me just say that the system is the product of a student project spanning one semester, so it's important to choose the RIGHT solution (architectural-wise) instead of the something quick and dirty that is hard to defend.

jschell wrote:
Run everything in a servlet container like tomcatTomcat is a JEE container.Now I am confused. Maybe you mean Glassfish? Tomcat is definitely a web container(?).
Let me just say that the system is the product of a student project spanning one semester, so it's important to choose the RIGHT solution (architectural-wise) That pretty much makes it impossible then.
1. A "Right" solution is generally only proven by time.
2. It requires a great deal of knowledge about the business domain.Yeah, you are right. Let be try to rephrase it. What solution (pattern) would be considered the most common or appropriate when you have a Java App and want to expose a few methods as a website and web service?
I hesitate to do this because i would be putting a lot of functionality which isn't about the web into a servlet container. Also, I have a lot of application scope data that is maintained and shared by all servlets/web servicesHuh? Do you already have an exposed web service? If you already have a server which other clients communicate then where does this functionality that you don't want to be tomcat running now? Or where do you think that you want to run it? And if you are or do run it somewhere else then tomcat could access it the same way any other client accesses that server.Sorry, that sentence was written badly. I don't have anything right now. What I meant to write was that I will have a lot of application scope data, objects that are kept in memory as long as the server is running, shared by multiple servlet instances.

Does WL70 Web Service Support Sessions?

Does anybody know how to make WL70 Web Service support sessions?
The "javax.xml.rpc.session.maintain" property on Stub does not seem to work.
Without session support, it is almost no use for us because we have to authenticate
the user each time.
Thanks in advance.
- Hao

It is just not working for me. I am using static stub.
After tracking the HTTP traffic, I found that the WL70 server is not issuing any
cookie. I have configured all the parameters for tracking session in the web application,
but I still don't see any cookie in the HTTP headers from the server. I also tried
to invoke the service using a browser, still no cookie seen. Is this a bug or
there is some other configuration for the server?
- Hao
"manoj cheenath" <[email protected]> wrote:
By default client will maintain the session. You dont have to set this
property.
Are you using static or dyn client?
Also, you should use the same instance of the stub for all your invokes
(all invokes to be in the same session).
regards,
-manoj
"Hao Chen" <[email protected]> wrote in message
news:[email protected]..
It is not working for me.
When I set the "javax.xml.rpc.session.maintain" property, weblogicthrows
"UnsupportedOperation"
exception and be default I don't see any session information beingpassed.
How do I configure the client side or even the server?
Thanks.
- Hao
"manoj cheenath" <[email protected]> wrote:
WL70 client does support http session. Is this not
working for you?
regards,
-manoj
"Hao Chen" <[email protected]> wrote in message
news:3d6402ac$[email protected]..
Does anybody know how to make WL70 Web Service support sessions?
The "javax.xml.rpc.session.maintain" property on Stub does not seemto
work.
Without session support, it is almost no use for us because we haveto
authenticate
the user each time.
Thanks in advance.
- Hao

Web services and EJB3 @resource annotation

This block of code works fine when NetworkViewBean is left as a @Stateless session bean.
Once I have JDeveloper 10.1.3 production expose it as a web service, I can no longer call the Entity Manager @Resource.
I always get a java.lang.NullPointerException returned.
Any ideas?? thanks for your help!
@WebService(name = "NetworkViewWS", serviceName = "NetworkViewWS")
public class NetworkViewBean {
@Resource
private EntityManager em;
public NetworkViewBean() { }
public String getDeviceVendorModel(String name) {
if (name == null || name.length()== 0) return "Null Input Parameter Specified";
NetDevice N= null;
try {
N= (NetDevice)em.createNamedQuery("findByDeviceName").setParameter(0, name).getSingleResult();
catch(Exception E) { E.printStackTrace(); return null; }
return "Vendor= "+ N.getVendor()+ ", Model= "+ N.getModelNumber();

Hi Joshua,
The problem is that you are using a regular Java web service and in 10.1.3.0.0 we do not have support for dependency injection in the container in the web container i.e. you cannot use annotations such as EJB, Resource in any classes in the web container.
You have two options:
1. Lookup an EJB from regular Java web service (JSR-181)
or
2. Make your Web service as a EJB 3.0 web service
Here what you can do to create an EJB 3.0 web service from JDev
1. Create an EJB 3.0 Session bean with remote interface
2. Change your remote interface to a web service end-point change @Remote to @WebService (import javax.jws.WebService)
3. You do not have to use @WebMethod, we automatically expose all methods in the end-point interface in the web service
4. You can inject EJB using @EJB
5. Create a deployment profile for the EJB-jar and deploy the ejb-jar and the EJB will be exposed as a web service. The context-uri for the web service will be /ejb-jarName
Hope this helps!
-Debu Panda
OC4J Product Management
blog: http://debupanda.com
-Debu

Siebel OnDemand Web Services and BPEL II

We are trying to do a POC for a given client that is trying to decide between SOD and another on demand CRM product.
Our POC is to integrate SOD using bpel and sending data to a back end system with SOD as the originator and instigator of the flow.
We intend to take data from an integration event pull it into bpel do a transformation to add data to it and update SOD to complete the circuit.
We are having a few issues and was wondering if you can provide some insight since we would like to put SOD at this site.
Our issues are :)
Issue 1
When we import the WSDL for the Integration event the scheema's are not resolved.
Issue 2. When we import more than one WSDL in our flow it has issues with duplicates between the 2 wsdls..
issue 3.
We have succesfully used the example application to do our login and faked out the endpoint but have not been able to automate this step.
We found an example online at oracle ( http://www.oracle.com/technology/tech/fmw4apps/siebel/ofm-siebel-blog-postings.html)
(We got that link from the other BPEL post: Siebel OnDemand Web Services and BPEL
But when we copy the code into our embeded java object it doesn't work. I think that we may be missing some of the code to use.
Do we have the full copy of this java object?
here is hte error that we get from bpel
Exception reported is: Siebel_On_Demand.bpel:33: Class bpel.p0.URL not found.
URL wsURL = new URL(wsLocation + "?command=login");
^
Siebel_On_Demand.bpel:33: Class bpel.p0.URL not found.
URL wsURL = new URL(wsLocation + "?command=login");
^
Siebel_On_Demand.bpel:34: Class bpel.p0.HttpURLConnection not found.
HttpURLConnection wsConnection = (HttpURLConnection)wsURL.openConnection();
^
Siebel_On_Demand.bpel:34: Class bpel.p0.HttpURLConnection not found.
HttpURLConnection wsConnection = (HttpURLConnection)wsURL.openConnection();
^
Siebel_On_Demand.bpel:42: Class bpel.p0.HttpURLConnection not found.
if (wsConnection.getResponseCode() == HttpURLConnection.HTTP_OK)
^
Siebel_On_Demand.bpel:42: Undefined variable or class name: HttpURLConnection
if (wsConnection.getResponseCode() == HttpURLConnection.HTTP_OK)
We appriciate any help that cam be provided :)
Thanks
Message was edited by:
user642301

I'm also trying to do this.
Some info from the Siebel web services guide:-
"The login request is an HTTPS request to instantiate a session and obtain a session ID. A client invokes login by sending an HTTP GET request to a URL like the following:
https://secure.crmondemand.com/Services/Integration?command=login
NOTE: The login parameter value is case sensitive.
■ Login input. The input to login is provided in the URL parameters and the HTTP headers, as follows:
■ The only URL parameter to be set is command. This parameter value is login.
Two HTTP headers, UserName and Password, must be set with the appropriate values for your system. For example:
❏ UserName: [email protected]
❏ Password: mypass
■ Login output. The login command returns the following items:
■ A session cookie, jsessionid. The client must use this cookie when submitting subsequent requests, including logoff requests.
■ A status code of 200, if the session does not encounter any errors. This indicates that the request succeeded.
Then to get data out ....
Integration request input. The jsessionid returned to the client during login must be included with the request. The request must contain the jsessionid either as a cookie or as a URL parameter, as follows:
https://secure.crmondemand.com/Services/Integration/object;jsessionid=xyZ12489w3482413
Does anyone have any ideas on how we might do this using the Oracle BPEL PM?
Thanks in advance.

Web Services spawning sessions

Hi All,
I am facing a problem right now, exactly what is happening I am working in a project where we are using around 14 Web Services and they frequently interact with each other, Whenever this interation happens, a new Session is created, and if the con current users are more than say 40, there are many Live Sessions on the App Server, Now I want to know how to invalidate these Sessions, The Session Time Out setting is set to 60 minutes, thats the Business requirement. I can't lower it down. Kindly suggest from where else I can invalidate these Live Sessions as they are taking costly resources of the Server, and after 20-25 minutes the sites performance so too poor to work on.
Thanx in Advance

More details would help someoen narrow down this problem, what app server are you using? When you say they interact with each other, does this mean all the Web Service calls are intra-app server? What libraries are you using to run the WS interfaces and client calls?

Diff b/w Web service and window service

What is the difference between web service and window service, whether the both are same or not, Give some explain about that each one and give some examples also.

An XML Web service is a component that implements program
logic and provides functionality for diseparate
applications. These applications use standard protocols,
such as HTTP, XML, and SOAP, to access the functionality.
XML Web services use XML-based messaging to send and
receive data, which enables heterogeneous applications to
interoperate with each other. You can use XML Web services
to integrate applications that are written in different
programming languages and deployed on different platforms.
In addition, you can deploy XML Web services within an
intranet as well as on the Internet. While the Internet
brings users closer to organizations, XML Web services
allow organizations to integrate their applications.
A Windows service starts much before any user logs in to
the system (if it has been setup to start at boot up
process). A Windows service can also be setup in such a way
that it requires a user to start it manually ? the ultimate
customization!
Windows services run as background processes. These
applications do not have a user interface, which makes them
ideal for tasks that do not require any user interaction.
You can install a Windows service on any server or computer
that is running Windows 2000, Windows XP, or Windows NT.
You can also specify a Windows service to run in the
security context of a specific user account that is
different from the logged on user account or the default
computer account. For example, you can create a Windows
service to monitor performance counter data and react to
threshold values in a database.

Pl/Sql web service and collections not working

Hello
I'm trying to create a web service from a function in a package which returns a collection. The creation of the web service and its deployment seem to work correctly. I do get the following warning :
WARNING: OWS-00077 The Value Type class: pxWsLang.PamLanguagerecordBase does not have a valid JAVA Bean pattern
but I don't think this is the source of the problem.
When I try to test the web service using the endpoint in the wsdl I get the following answer in the browser:
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"><env:Header/><env:Body><env:Fault xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"><faultcode>env:Server</faultcode><faultstring>Error creating target: pxWsLang.WsLangUser</faultstring><faultactor></faultactor></env:Fault></env:Body></env:Envelope>
In the DOS window for the OC4J I get the following error :
2006-11-15 09:21:25.852 ERROR OWS-04005 An error occurred for port: {http://pxWs
Lang/WsLang.wsdl}wsLangSoapHttpPort: javax.xml.rpc.JAXRPCException: Error creati
ng target: pxWsLang.WsLangUser.
The PL/SQL code is as follows :
Object:
CREATE OR REPLACE TYPE PAM_LanguageRecord as OBJECT
NR NUMBER(3),
SYMBOL VARCHAR2(2)
Collection:
CREATE OR REPLACE Type PAM_LanguageTable as Table of PAM_LanguageRecord;
Package body :
create or replace package body PAM_TEST is
function CursorTest return Pam_LanguageTable is
Res_LangTable PAM_LanguageTable;
cursor cur is select * from stc_languages;
begin
Res_LangTable := new PAM_LanguageTable();
for Rec in cur loop
Res_LangTable.Extend(1);
Res_LangTable(cur%ROWCOUNT) := new PAM_LanguageRecord
(Rec.NR,
Rec.SYMBOL
end loop;
Return Res_LangTable;
end;
end;
I'm using JDeveloper version 10.1.3.1.0.3984
How can I get this to work ? (without using Apache Axis or other tools :-)
Is it supposed to work ?
Many Thanks
Paul

Hi,
for the "error creating target" problem I found the solution here:
[WS from a PL/SQL package]: Error creating target
Hope this helps.
Regards,
Patrik

Quick questions on the topic of Web Services and EJB POJOs

I have been reading about Web Services and the data types that are aloud as operation parameters and return types. I was wondering what the standard practice for return types; is it to use the Entity classes straight and customize the WSDL instead of letting the EE container do it (avoid cyclic problems in the schema that can occur when using entity 1-to-many and many-to-1 mappings) or; is it to off load the data into a DTO/VO/Bean and let the EE container take care of all the schema mapping for the WSDL? I look at the EE tutorial and bought a EE book both use very basic examples that do not include connecting to a database or using EJB3 for the data store.
Thanks for any information

bump

ASMX web service and The remote server returned an error: (500) Internal Server Error issue

i have developed a very small web service and which is hosted along with our web site. our webservice url is
http://www.bba-reman.com/Search/SearchDataIndex.asmx
web service code
namespace WebSearchIndex
#region SearchDataIndex
/// <summary>
/// SearchDataIndex is web service which will call function exist in another library for part data indexing
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
// [System.Web.Script.Services.ScriptService]
public class SearchDataIndex : System.Web.Services.WebService
//public AuthHeader ServiceAuth=null;
public class AuthHeader : SoapHeader
public string Username;
public string Password;
#region StartIndex
/// <summary>
/// this function will invoke CreateIndex function of SiteSearch module to reindex the data
/// </summary>
[WebMethod]
public string StartIndex(AuthHeader auth)
string strRetVal = "";
if (auth.Username == "Admin" && auth.Password == "Admin")
strRetVal = SiteSearch.CreateIndex(false);
else
SoapException se = new SoapException("Failed : Invalid credentials",
SoapException.ClientFaultCode,Context.Request.Url.AbsoluteUri,new Exception("Invalid credentials"));
throw se;
return strRetVal;
#endregion
#endregion
when i was calling that web service from my win apps using
HttpWebRequest
class then getting error The remote server returned an error: (500) Internal Server Error
here is code of my win apps from where i am calling web service
string strXml = "";
strXml = "<s:Envelope xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'><s:Body><StartIndex xmlns='http://tempuri.org/' xmlns:i='http://www.w3.org/2001/XMLSchema-instance'><auth><Username>joy</Username><Password>joy</Password></auth></StartIndex></s:Body></s:Envelope>";
string url = "http://www.bba-reman.com/Search/SearchDataIndex.asmx";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "text/xml";
req.KeepAlive = false;
req.ContentLength = strXml.Length;
StreamWriter streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
streamOut.Write(strXml);
streamOut.Close();
StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
string strResponse = streamIn.ReadToEnd();
streamIn.Close();
i am just not being able to understand when this line execute
StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
then getting the error The remote server returned an error: (500) Internal Server Error
not being able to understand where i made the mistake. mistake is in the code of web service end or in calling code?
help me to fix this issue. thanks

Hi Mou,
I just tried your win app code about calling web service, but failed. I got the 500 error after I called your service:
The error message I quoted from Fiddler:
<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><soap:Fault><faultcode>soap:Client</faultcode><faultstring>System.Web.Services.Protocols.SoapException: Failed : Invalid credentials ---> System.Exception: Invalid credentials
--- End of inner exception stack trace ---
at BBAReman.WebSearchIndex.SearchDataIndex.StartIndex(AuthHeader auth)</faultstring><faultactor>http://www.bba-reman.com/Search/SearchDataIndex.asmx</faultactor><detail /></soap:Fault></soap:Body></soap:Envelope>
I am not totally sure that error occurred by the authentication. But I suggest you can try to add this service into your project using this method below:
1.right click the Reference and select Add Service Reference
2.input your service link and click "Go"
And you can use this service as the following:
private async void callService()
ServiceReference1.SearchDataIndexSoapClient client =new ServiceReference1.SearchDataIndexSoapClient();
var Str= await client.StartIndexAsync(new ServiceReference1.AuthHeader { Username = "Admin", Password = "Admin" });
Please try it.
Regards,
Will
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How to connect to external web service and convert XML to a table

Hi experts,
I need to connect to external/non-SAP web service and convert XML in that site to a SAP table?
Is there a function call(SE37) to do this? Is it a must for me to install AS JAVA or PI and configure enterprise service? Please provide a link for me to retrieve relevant infomation, thx.

No, you don't need PI or the Java stack for this. You can create an ABAP proxy using the WSDL file for the web service and call the web service using the proxy class in an ABAP program. You can transform the XML response to internal tables/structures/variables using a transformation template that you create.

Web services and sessions

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