Error updating/posting to Twitter - linq-to-twitter

I tried with this code to post on the wall (Twitter) of a user
if (credentials.ConsumerKey == null || credentials.ConsumerSecret == null)
credentials.ConsumerKey = ConfigurationManager.AppSettings["twitterConsumerKey"];
credentials.ConsumerSecret = ConfigurationManager.AppSettings["twitterConsumerSecret"];
auth = new MvcAuthorizer
Credentials = credentials
if (!auth.IsAuthorized)
Uri specialUri = new Uri(Request.Url.ToString());
return auth.BeginAuthorization(specialUri);
twitterCtx = new TwitterContext(auth);
Probleme : the first test goes well, I posted on the wall the second test shows this error:
Error while querying Twitter.
someone can help me to solve this problem

LINQ to Twitter throws a TwitterQueryException when detecting an error from Twitter. You can look at the Response property of the TwitterQueryException instance to see the message that Twitter is sending back. Another way to get a complete view of the query and Twitter's response is to use Fiddler2 to view the HTTP traffic and see what Twitter's response is.
In your case, I'm looking at the fact that you said the first post worked, but the second one doesn't. This might be caused by posting a duplicate message, which Twitter doesn't allow. If you look at any of the LINQ to Twitter demos that post a message, you'll notice that they contain a DateTime, which practically guarantees that the text of each message will be different. So, In your case, you could try this:
twitterCtx.UpdateStatus("Welcome - " + DateTime.Now.ToString());
You're welcome to provide more info by posting the contents of the Response property from the TwitterQueryException. Also, for more info, I've begun a FAQ at


Rocket.Chat hide username and email

I am fairly new to Rocket.Chat and I got stuck with a problem.
What I am trying to do is to hide the user's username and email in a channel. They can be for example replaced with 'anonymous'.
From what I have read in the documentation, it seems like this can be achieved with an incoming WebHook.
I have used the webHook provided in the documentations just to test it and I always get "Service Unavailable". The script looks something like this:
class Script {
process_incoming_request({ request }) {
// console is a global helper to improve debug
return {
text: request.content.text
From this, I got an auto-generated curl example and when I run it, I get the "Service Unavailable" message.
So, my first question is: To achieve the desired behavior (hide user's username and email), do I need to use incoming WebHook or is there another way to do that?
My second question is: What is the reason for getting the "Service Unavailable" message when I am using the example from the documentation?
I have fixed the problem with the "Service Unavailable" message.
I am still not sure how to hide the user's username and email

Docusign API - Views/Recipient with In Person Signing

I have everything working for the views/sender, and I have envelopeId/recipients working - so I know every piece of data that I think I need.
In my envelope I have 2 inPersonSigners. The first is a "client" always, and the second is an employee, always.
I have the UserId, RecipientGuid, RecipientId, UserName, etc. Since these are In Person AND Embedded signers, they do not have email addresses.
I have been unable to get the recipient view to return the URL because the "UNKNOWN_ENVELOPE_RECIPIENT" OR "INVALID_ENVELOPE_RECIPIENT" errors I am receiving with every combination of data I have tried.
In the documentation it states you only need the clientUserId or a userName and Email combination. I have tried a variety of these, and still cant get the in person, embedded signing recipient view to return the correct response. 100% of the time it is an envelope recipient invalid error. I have tested every combination I can think of in postman and code;
hostName:"StackExchange User"
signerName:"Test Testeroni"
I just need to be able to take the data above, post to /views/recipient and get the response url.
I think the problem is that when this document template is being created, via Drawloop ->Docusign, there is no Email being passed, but there is a Name and clientUserId. Hopefully its something simple that I have missed after looking at the same thing for hours.
The below sample invocation/POST would work. I did notice that your clientUserID resembles an email# - typically this value is in a GUID format. Something to keep in mind.
"username": "StackExchange User",
"email": "",

Facebook Canvas App: Requests with Object

I have been following the Facebook documentation on how to create a Requests dialog with the action_type: send
Facebook Requests documentation
I want to replicate this piece of code here:
Sending requests explicitly stating an action and object:
FB.ui({method: 'apprequests',
message: 'Take this bomb to blast your way to victory!',
object_id: 'YOUR_OBJECT_ID' // e.g. '191181717736427'
}, function(response){
I have created an Open Graph with the following:
Action type: send
Object type: gift
However, I am not sure what the 'OBJECT_ID' is referring to.
I've tried publishing an Open Graph and then using the response ID I get from the POST and inserting it in the OBJECT_ID but still get the error
Object with ID '...' cannot be retrieved.
I've also tried inserting a Facebook Page ID and failed.
I've successfully managed to create a basic Request dialog with just a message but when I try to send an object/gift with it, I hit the above error.
Any help will be much appreciated, thanks!
Not 100% sure on this as I don't use this feature, but I did set up an action and an object in my app to try to help you out. Once I created an action and an object, I also created a custom story linking the two together (that's the only way I could figure out how to link them). Once this had been done, I clicked on the Get Code link available from Action Types under Open Graph and it shows this:
Code for Action
Perhaps the number at the end of the link is the object ID? I'm just speculating as I'm not sure, but perhaps give that a try. It would be the number after %2F which is the URL encoded value for a forward slash.
I also just noticed you could change the platform; the above was for HTTP while the below would be for PHP:
$response = $facebook->api(
'bomb' => ""
// handle the response
The PHP example shows the number more clearly as it does not have the URL encode.
Will just try answering the the object_id part, from where you can get this from or create one.
If you read the facebook documentation for App Request titled - "Creating objects for requests", here they have mentioned how to create custom objects types from your facebook dashboard which is under Open Graphs.
They have also mentioned the use of Object Browser. Here if you select the app name, Object Owner and types, from the lists, it will list all the object ID that you can use to pass in apprequests dialog.

javascript - make facebook page post

I am not using the Javascript SDK because that is client-side whereas I'm making a server-side call.
I want to make a page post so that I can make an ad creative with it. I can do the call perfectly fine in the Graph API Explorer tool, but I cannot make the same call (with the same long-lived access tokens that continue to work in the Graph Explorer) from Javascript. Here is my code:
tok = <valid and never expiring user token>;
var pg_tok = <valid and never expiring page token>;
var act_id = <account_id>;
var pg_id = <page_id>;
var call_to_action = 'INSTALL_MOBILE_APP';
var fb_app_url = '';
var msg = 'Test creative, ya see';
var pic_url = '<path_to_my_image>';
var ROOT = '';
var pagepost_endpoint = ROOT+pg_id+'/feed';
var pagepost_params = {
access_token: pg_tok,
call_to_action: {
type: call_to_action,
value: {link: fb_app_url}
message: msg,
picture: pic_url,
published: false
var pagepost_res =, {params: pagepost_params});
I have played around a bunch with params vs. data for where pagepost_params goes in the that is giving the error (that is Meteor's HTTP btw).
-Putting everything in params gives the error: {"error":{"type":"Exception","message":"No Call To Action Type was parseable. Please refer to the call to action api documentation","code":1373054,"is_transient":false}}.
-Putting everything in data gives the error: {"error":{"message":"(#200) This API call requires a valid app_id.","type":"OAuthException","code":200}}.
-Putting access_token in params and everything else in data gives the error: {"error":{"message":"Invalid parameter","type":"FacebookApiException","code":100,"error_subcode":1349125}}.
One more clue for everyone, if I change the to HTTP.get, and just put access_token in params and include no other parameters (in params or in data), the call succeeds and I see past posts I have made on this page through the Graph Explorer (only the ones with published: true, though), so the access token and endpoint do work, just something is faulty about POST-ing instead of GET-ing and the specific parameters I'm using.
Have you tried posting to /photos instead of /feed? The error subcode is the same as mentioned here Posting to facebook wall using graph api
Hope this helps
Turned out to be an issue with Meteor's HTTP. It does not handle nested JSON very well, and we're going to submit a pull request for that. But for those seeing this, the important thing to take away is that the call_to_action may not be a valid JSON object, and even if it is, it may not be being stringified/parsed as expected. My fix was using instead of (then instead of params or data, you use form. look up node's request

Struggling to build a JS/PHP validation function for my app

I have a web service that returns a JSON object when the web service is queried and a match is found, an example of a successful return is below:
{"terms":[{"term":{"termName":"Focus Puller","definition":"A focus puller or 1st assistant camera..."}}]}
If the query does not produce a match it returns:
Errant query: SELECT termName, definition FROM terms WHERE termID = xxx
Now, when I access this through my Win 8 Metro app I parson the JSON notation object using the following code to get a JS object:
var searchTerm = JSON.parse(Result.responseText)
I then have code that processes searchTerm and binds the returned values to the app page control. If I enter in a successful query that finds match in the DB everything works great.
What I can't work out is a way of validating a bad query. I want to test the value that is returned by var searchTerm = JSON.parse(Result.responseText) and continue doing what I'm doing now if it is a successful result, but then handle the result differently on failure. What check should I make to test this? I am happy to implement additional validation either in my app or in the web service, any advice is appreciated.
There are a couple of different ways to approach this.
One approach would be to utilize the HTTP response headers to relay information about the query (i.e. HTTP 200 status for a found record, 404 for a record that is not found, 400 for a bad request, etc.). You could then inspect the response code to determine what you need to do. The pro of this approach is that this would not require any change to the response message format. The con might be that you then have to modify the headers being returned. This is more typical of the approach used with true RESTful services.
Another approach might be to return success/error messaging as part of the structured JSON response. Such that your JSON might look like:
"terms":[{"term":{"termName":"Focus Puller","definition":"A focus puller or 1st assistant camera..."}}]}
You could obviously change the value of result in the data to return an error and place the error message in message.
The pros here is that you don't have to worry about header modification, and that your returned data would always be parse-able via JSON.parse(). The con is that now you have extra verbosity in your response messaging.