Develop Reference

Using Force.com for arbitrary REST API methods

NB: This is a duplicate of my question on https://github.com/developerforce/Force.com-Toolkit-for-NET/issues/357. I'll sync both threads after this is resolved.
I'm using the Force.com toolkit for .NET. SOQL queries are working fine for me, but I'm trying to also make a simple REST call similar to one I can make with the REST Explorer tool at https://workbench.developerforce.com/restExplorer.php.
My code is:
using (var queryClient = new ForceClient(authClient.InstanceUrl, authClient.AccessToken, authClient.ApiVersion))
{
// Works fine
string soql = GetMyQuery();
QueryResult<dynamic> result = await queryClient.QueryAsync<dynamic>(soql);
// Throws exception. Changing version # doesn't seem to have any effect.
dynamic restResult = await queryClient.ExecuteRestApiAsync<dynamic>("/services/data/v46.0/sobjects/Task/describe");
When I get to ExecuteRestApiAsync, I get the exception:
Salesforce.Common.ForceException
HResult=0x80131500
Message=Could not find a match for URL
Source=Salesforce.Common
StackTrace:
at Salesforce.Common.JsonHttpClient.<HttpGetAsync>d__4`1.MoveNext()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[...]
I assume that my argument "/services/data/v46.0/sobjects/Task/describe", which works fine in the REST Explorer tool, needs to change. But I've guessed a bunch of different options (different versions, with or without leading URL string, etc.) and so far haven't gotten anything to work.
Can someone tell me how to use ForceClient to get the same results I get back from the Salesforce Workbench REST Explorer?

I ended up looking more closely at the ForceClient code. ExecuteRestApiAsync was not the correct call for this. For my specific example, there are 3 ways I found that work:
dynamic restResult = await queryClient.DescribeAsync<dynamic>("Task");
restResult = await queryClient.BasicInformationAsync<dynamic>("Task/describe/");
restResult = await queryClient.BasicInformationAsync<dynamic>("Task/describe");
(All 3 of the above lines return the same result)
This will work fine for sobjects. I don't think it's currently possible to use this library directly for things like reports which use "analytics" in their REST API definitions, but there are a couple workarounds that don't require recompiling the code. The cleanest and most performant of these that I've found is to pass your own HttpClient instances into the ForceClient ctor and use those directly instead of the methods on the ForceClient. An inspection of the ForceClient code will reveal that most of these methods are just thin string.Format() wrappers on HttpClient methods anyway.

OAuth throws null reference exception

Lately the Nemiro.OAuth api is throwing null reference exceptions for some reason. After getting the lates versoin Nemiro.OAuth v1.12.0 and Nemiro.OAuth.loginForms v1.6.0 it started to behave like this, haven't changed my implemented logic in any way.
My file structure in dropbox:
https://www.dropbox.com/home/Apps/MyApplication/MyFolder/SubFolder/Some%20folder1/MyFiles
Old and new uri:
/MyFolder/SubFolder/Some folder1/MyFiles/somefile.png
When I call OAuthUtility.Post it shows following error message:
I'm using following logic to handle the request:
string oldUri = oldPath.ToUri();
string newUri = newPath.ToUri();
var paramCollection = new HttpParameterCollection
{
{"access_token", ACCESS_TOKEN},
{"from_path", oldUri },
{"to_path", newUri },
{"root","auto"}
};
OAuthUtility.Post
(
"https://api.dropboxapi.com/1/fileops/move",
paramCollection
);
I already checked that file exists in dropbox, my access token is valid, also, as you can see the path is correct.. Also it fails for other operations like
https://content.dropboxapi.com/1/files_put/auto{0}/{1}
What could cause this?
Could it be something with new Dropbox api V2?
Update
It actually works, but throws null reference exception at the same time..
That is pretty annoying, that means I need to wrap each operation in try catch block. Also, when I created new console application and executed the same code, it worked without any exceptions. Which means, something is wrong in my project.

0. Dropbox API v1 has been deprecated:
https://blogs.dropbox.com/developers/2016/06/api-v1-deprecated/
...In order to provide our developers with the most up-to-date features and support a single, consistent platform, we’ll be turning off API v1 a year from now, on 6/28/2017.
It remains approximately two months :-) I recommend switching to the new version of the API.
1. Do you pass the URI? But why are you doing this? Just use a string path relative to the root directory of the application. I tried to use a URI, this code does not work for me, the server returns an error 404.
I used relative paths and checked the code and do not see any problems.
If possible, show the full code in which the problem occurs.
Or you can send the project to me by email: aleksey.nemirogmail.com

XML-RPC .NET call with associative array

I'm trying to perform some actions on a remote server using the XML-RPC .NET library and C#. I have no prior experience using this protocol but most examples seemed pretty straight forward. But the server I'm trying to communicate with seems to parse commands slightly different than most examples I've seen.
All calls are made using a 'perform_actions' function and it expects a list of action(s) along side with it as parameter. Fortunately there's a pretty decent documentation with some code samples included but these examples are done in Ruby/Perl with which I have no experience. I've tried translating these to C# with which I believe I'm on the right path but I'm consistently getting the error"Server returned a fault exception: [400] Invalid request: expected list of actions."
My current code
[XmlRpcUrl("https://DOMAIN/admin/rpc")]
public interface iFace : IXmlRpcProxy
{
[XmlRpcMethod("perform_actions")]
XmlRpcStruct[] perform_actions(XmlRpcStruct struc);
}
public void GetData()
{
XmlRpcStruct actions = new XmlRpcStruct();
actions.Add("name", "registrations.accounts.list");
iFace proxy = XmlRpcProxyGen.Create<iFace>();
proxy.Credentials = new NetworkCredential("USERNAME", "PASSWORD");
XmlRpcStruct[] response = proxy.perform_actions(actions);
}
And here is a Ruby example from the API documentation which I was trying to replicate which is functional
require 'xmlrpc/client'
url = 'https://user:passwd#qmanage.example.com/admin/rpc'
c = XMLRPC::Client.new_from_uri(url)
# Call the action to list the access groups.
ags = c.call('perform_actions', [{
'name' => 'network.accessgroups.list',
'args' => {}
}])
The server doesn't really seem to recognize the XmlRpcStruct I'm sending as the error seems to complain about not receiving a list of actions. (I receive the same error if I send no parameter). However if I change the XmlRpcStruct to a regular string array it will complain about expecting a struct instead so the data isn't ignored entirely.
Is anyone able to help me in the right direction with my problem or does anyone know why this error is returned?

Finally managed to figure out my dilemma. Seems I had to pass an array of XmlRpcStruct's rather than just singular XmlRpcStruct, the following solved my problem:
XmlRpcStruct[] actions = new XmlRpcStruct[1];
XmlRpcStruct action = new XmlRpcStruct();
action.Add("name", "registrations.accounts.list");
actions[0] = action;
I just passed actions as parameter to the perform_actions function.

WSDL method doesn't return a value in C# but works fine in Java

I have wsdl. When I tested my wsdl in SoapUI 5 response was ok. I received proper XML data. When I added service reference in C# and run methods which belongs to web services, the methods didn't return a value. I don't know why. I want to ask how can solve this problem. Can I build a xml parser? How can I connect directly with wsdl document and pass parameters and receive response?
Maybe I should change something in visual studio to my method return a value? because now method return only null value.
In Java the webservices works fine, but in C# don't.
using (CCS.CCSClient ccClient = new CCS.CCSClient())
{
CCS.contactCenterCampaignListResponse infoooo = new CCS.contactCenterCampaignListResponse();
string info = ccClient.contactCenterCampaignGet(token, 66).accountId.ToString();
info variable is null
contactCenterCampaignGet() method return null, but when i use this method in Java contactCenterCampaignGet() return 66
Please, help.

Creating Facebook Event in C# Returns #100 Invalid Parameter

I'm trying to put together a small app that will allow me to create events in Facebook. I've already got my Facebook app set up and have successfully tested a post to my feed through the application using the code below.
wc.UploadString("https://graph.facebook.com/me/feed", "access_token=" + AccessToken + "&message=" + Message);
When I try to take things to the next step, I've just hit a brick wall.
The code that I've written is here:
JavaScriptSerializer ser = new JavaScriptSerializer();
wc.UploadString("https://graph.facebook.com/me/events?" + "access_token=" + AccessToken, ser.Serialize(rawevent));
rawevent is a small object I wrote that puts together the elements of an event so I can pass it around my application.
I'm using a similar method using ser.Deserialize to parse the user data coming back from Facebook, so I believe this should work the other way too.
Setting the above code aside for a moment, I also have tried simply putting plain text in there in various formats and with differing levels of parameters, and nothing seems to work.
Is there something wrong with the way I'm approaching this? I've read over everything I could get my hands on, and very few of the samples out there that I could find deal with creating events, and when they do, they're not in C#.
I would appreciate any help on this. If you even just have a clean copy of JSON code that I can look at and see where mine should be tweaked I would appreciate it.
I have included a copy of what the ser.Serialize(rawevent) call produces below:
{"name":"Dev party!","start_time":"1308360696.86778","end_time":"1310952696.86778","location":"my house!"}
EDIT:
thanks to bronsoja below, I used the code below to successfully post an event to Facebook!
System.Collections.Specialized.NameValueCollection nvctest = new System.Collections.Specialized.NameValueCollection();
nvctest.Add("name", "test");
nvctest.Add("start_time", "1272718027");
nvctest.Add("end_time", "1272718027");
nvctest.Add("location", "myhouse");
wc.UploadValues("https://graph.facebook.com/me/events?" + "access_token=" + AccessToken, nvctest);

All the posting examples in the graph api examples in FB docs show using curl -F, which indicates values be POSTed as normal form data. Just key value pair like you did in your first example.
The error is likely due to sending JSON. If you are using WebClient you may be able to simply create a NameValueCollection with your data and use WebClient.UploadValues to send the request.

I've recently found that Facebook returns (#100) Invalid parameter when we are trying to post data when there is already a record on file with the same name. So for example, if you are creating a FriendList via the API, and the name is "foo", submitting another identical request for the same name will immediately return that error.
In testing events you probably deleted the "Dev party!" event after each test, or maybe changing the time since you don't want two events to collide. But I'm wondering if you duplicated your wc.UploadValues(...) statement just as a test if you would see that error again. You're either deleting your 'test' event or maybe changing names and didn't notice that two events with the same name might return the error.
What's really bad here is that the error comes back as a OAuthException, which seems very wrong. This isn't a matter of authentication or authorization, it's purely a data issue.
Facebook Engineers, if I'm right about how this works, it's a bug to return this error under these conditions, and this forum has many examples of related confusion. Please return more appropriate errors.