Looking for some help on posting an open graph action using v6 of the SDK. I have been scouring for a couple of days, and can't find any examples of how to do this. So far I have:
protected void btnDyno_Click(object sender, EventArgs e)
{
FacebookSDKInterface fbData = new FacebookSDKInterface();
var fb = new FacebookClient(fbData.FacebookAccessToken);
dynamic parameters = new ExpandoObject();
parameters.appnamespace = "thedynoroom";
parameters.action = "added";
parameters.object_name = "dyno_run";
parameters.object_url = "http://thedynoroom.com/DesktopModules/Incite/InciteCore/FBObject.aspx";
try
{
dynamic result = fb.Post("me/", parameters);
lblPostMessageResult.Text = result;
txtMessage.Text = string.Empty;
}
catch (FacebookApiException ex)
{
lblPostMessageResult.Text = ex.Message;
}
}
I know this is not correct, as I was just guessing as I was unable to find any documentation on this specifically. Is there any more documentation other than what is on http://csharpsdk.org?
Thanks in advance for the help!
Chad
UPDATE: Ok, figured it finally...
If, when in your facebook developer graph dashboard, the Get Code link for your action looks like this:
curl -F 'access_token=blahblahblah' \
-F 'dyno_run=http://samples.ogp.me/266692056752346' \
'https://graph.facebook.com/me/thedynoroom:add'
Then your code should look like this:
dynamic parameters = new ExpandoObject();
parameters.dyno_run = "http://samples.ogp.me/266692056752346";
try
{
dynamic result = fb.Post("me/thedynoroom:add", parameters);
lblPostMessageResult.Text = result;
txtMessage.Text = string.Empty;
}
Note that in the "parameters.xxxxxxx" the xxxxx is = to your action name.
Now I just need to figure out how to parse the JSON result :)
See answer under UPDATE above.
Related
I am using FacebookGraphAPIDesktop.swc api to create unpublished post.
How can I assign language, location and city parameter with it?
Currently I am creating it like below :-
var params:Object = new Object();
params.access_token = PhotoToken;
params.published = 0;
params.message = "Test unpublished post";
FacebookDesktop.api("/" + PageID +"/feed", StatusPosted, params,"POST");
thanks in advance
I found the solution and posting here if anyone needs it :-
We need to pass it as a json string :-
var targeting:String = "{'countries':['US','IN']}";
_params.access_token = token;
_params.published = 0;
_params.message = "This is status message 5";
_params.targeting = targeting;
FacebookDesktop.api("/202387076493582/feed", messagePosted1, _params,"POST");
I have created a class and published it as web service. I have created a web method like this:
public void addNewRow(MyObject cob) {
MyAppModule myAppModule = new MyAppModule();
try {
ViewObjectImpl vo = myAppModule.getMyVewObject1();
================> vo object is now null
Row r = vo.createRow();
r.setAttribute("Param1", cob.getParam1());
r.setAttribute("Param2", cob.getParam2());
vo.executeQuery();
getTransaction().commit();
} catch (Exception e) {
e.printStackTrace();
}
}
As I have written in code, myAppModule.getMyVewObject1() returns a null object. I do not understand why! As far as I know AppModule has to initialize the object by itself when I call "getMyVewObject1()" but maybe I am wrong, or maybe this is not the way it should be for web methods. Has anyone ever faced this issue? Any help would be very appreciated.
You can check nice tutorial: Building and Using Web Services with JDeveloper
It gives you general idea about how you should build your webservices with ADF.
Another approach is when you need to call existing Application Module from some bean that doesn't have needed environment (servlet, etc), then you can initialize it like this:
String appModuleName = "org.my.package.name.model.AppModule";
String appModuleConfig = "AppModuleLocal";
ApplicationModule am = Configuration.createRootApplicationModule(appModuleName, appModuleConfig);
Don't forget to release it:
Configuration.releaseRootApplicationModule(am, true);
And why you shouldn't really do it like this.
And even more...
Better aproach is to get access to binding layer and do call from there.
Here is a nice article.
Per Our PM : If you don't use it in the context of an ADF application then the following code should be used (sample code is from a project I am involved in). Note the release of the AM at the end of the request
#WebService(serviceName = "LightViewerSoapService")
public class LightViewerSoapService {
private final String amDef = " oracle.demo.lightbox.model.viewer.soap.services.LightBoxViewerService";
private final String config = "LightBoxViewerServiceLocal";
LightBoxViewerServiceImpl service;
public LightViewerSoapService() {
super();
}
#WebMethod
public List<Presentations> getAllUserPresentations(#WebParam(name = "userId") Long userId){
ArrayList<Presentations> al = new ArrayList<Presentations>();
service = (LightBoxViewerServiceImpl)getApplicationModule(amDef,config);
ViewObject vo = service.findViewObject("UserOwnedPresentations");
VariableValueManager vm = vo.ensureVariableManager();
vm.setVariableValue("userIdVariable", userId.toString());
vo.applyViewCriteria(vo.getViewCriteriaManager().getViewCriteria("byUserIdViewCriteria"));
Row rw = vo.first();
if(rw != null){
Presentations p = createPresentationFromRow(rw);
al.add(p);
while(vo.hasNext()){
rw = vo.next();
p = createPresentationFromRow(rw);
al.add(p);
}
}
releaseAm((ApplicationModule)service);
return al;
}
Have a look here too:
http://www.youtube.com/watch?v=jDBd3JuroMQ
When loading the Facebook feeds from one page, if a picture exist in the feed, I want to display the large picture.
How can I get with the graph API ? The picture link in the feed is not the large one.
Thanks.
The Graph API photo object has a picture connection (similar to that the user object has):
“The album-sized view of the photo. […] Returns: HTTP 302 redirect to the URL of the picture.”
So requesting https://graph.facebook.com/{object-id-from-feed}/picture will redirect you to the album-sized version of the photo immediately. (Usefull not only for displaying it in a browser, but also if f.e. you want to download the image to your server, using cURL with follow_redirect option set.)
Edit:
Beginning with API v2.3, the /picture edge for feed posts is deprecated.
However, as a field the picture can still be requested – but it will be a small one.
But full_picture is available as well.
So /{object-id-from-feed}?fields=picture,full_picture can be used to request those, or they can be requested directly with the rest of feed data, like this /page-id/feed?fields=picture,full_picture,… (additional fields, such as message etc., must be specified the same way.)
What worked for me :
getting the picture link from the feed and replacing "_s.jpg" with "_n.jpg"
OK, I found a better way. When you retrieve a feed with the graph API, any feed item with a type of photo will have a field called object_id, which is not there for plain status type items. Query the Graph API with that ID, e.g. https://graph.facebook.com/1234567890. Note that the object ID isn't an underscore-separated value like the main ID of that feed item is.
The result of the object_id query will be a new JSON dictionary, where you will have a source attribute containing a URL for an image that has so far been big enough for my needs.
There is additionally an images array that contains more image URLs for different sizes of the image, but the sizes there don't seem to be predictable, and don't all actually correspond to the physical dimensions of the image behind that URL.
I still wish there was a way to do this with a single Graph API call, but it doesn't look like there is one.
For high res image links from:
Link posts
Video posts
Photo posts
I use the following:
Note: The reason I give the _s -> _o hack precedence over the object_id/picture approach is because the object_id approach was not returning results for all images.
var picture = result.picture;
if (picture) {
if (result.type === 'photo') {
if (picture.indexOf('_s') !== -1) {
console.log('CONVERTING');
picture = picture.replace(/_s/, '_o');
} else if (result.object_id) {
picture = 'https://graph.facebook.com/' + result.object_id + '/picture?width=9999&height=9999';
}
} else {
var qps = result.picture.split('&');
for (var i = 0; i < qps.length; i++) {
var qp = qps[i];
var matches = qp.match(/(url=|src=)/gi);
if (matches && matches.length > 0) picture = decodeURIComponent(qp.split(matches[0])[1]);
}
}
}
This is a new method to get a big image. it was born after the previews method doesn't works
/**
* return a big url of facebook
* works onky for type PHOTO
* #param picture
* #param is a post type link
* #return url of image
*/
#Transactional
public String getBigImageByFacebookPicture(String pictrue,Boolean link){
if(link && pictrue.contains("url=http")){
String url = pictrue.substring(pictrue.indexOf("url=") + 4);
try {
url = java.net.URLDecoder.decode(url, "UTF-8");
} catch (UnsupportedEncodingException e) {
StringBuffer sb = new StringBuffer("Big image for Facebook link not found: ");
sb.append(link);
loggerTakePost.error(sb.toString());
return null;
}
return url;
}else{
try {
Document doc = Jsoup.connect(pictrue).get();
return doc.select("#fbPhotoImage").get(0).attr("src");
} catch (Exception e) {
StringBuffer sb = new StringBuffer("Big image for Facebook link not found: ");
sb.append(link);
loggerTakePost.error(sb.toString());
return null;
}
}
}
Enjoy your large image :)
Actually, you need two different solutions to fully fix this.
1] https://graph.facebook.com/{object_id}/picture
This solution works fine for images and videos posted to Facebook, but sadly, it returns small images in case the original image file was not uploaded to Facebook directly. (When posting a link to another site on your page for example).
2] The Facebook Graph API provides a way to get the full images in the feed itself for those external links. If you add 'full_picture' to the fields like in this example below when calling the API, you will be provided a link to the higher resolution version.
https://graph.facebook.com/your_facebook_id/posts?fields=id,link,full_picture,description,name&access_token=123456
Combining these two solutions I ended up filtering the input in PHP as follows:
if ( isset( $post['object_id'] ) ){
$image_url = 'https://graph.facebook.com/'.$post['object_id'].'/picture';
}else if ( isset( $post['full_picture'] ) ) {
$image_url = $post['full_picture'];
}else{
$image_url = '';
}
See: http://api-portal.anypoint.mulesoft.com/facebook/api/facebook-graph-api/docs/reference/pictures
Just put "?type=large" after the URL to get the big picture.
Thanks to #mattdlockyer for the JS solution. Here is a similar thing in PHP:
$posts = $facebook->api('/[page]/posts/', 'get');
foreach($posts['data'] as $post)
{
if(stristr(#$post['picture'], '_s.'))
{
$post['picture'] = str_replace('_s.', '_n.', #$post['picture']);
}
if(stristr(#$post['picture'], 'url='))
{
parse_str($post['picture'], $picturearr);
if($picturearr['url'])
$post['picture'] = $picturearr['url'];
}
//do more stuff with $post and $post['picture'] ...
}
After positive comment from #Lachezar Todorov I decided to post my current approach (including paging and using Json.NET ;):
try
{
FacebookClient fbClient = new FacebookClient(HttpContext.Current.Session[SessionFacebookAccessToken].ToString());
JObject posts = JObject.Parse(fbClient.Get(String.Format("/{0}/posts?fields=message,picture,link,attachments", FacebookPageId)).ToString());
JArray newsItems = (JArray)posts["data"];
List<NewsItem> result = new List<NewsItem>();
while (newsItems.Count > 0)
{
result.AddRange(GetItemsFromJsonData(newsItems));
if (result.Count > MaxNewsItems)
{
result.RemoveRange(MaxNewsItems, result.Count - MaxNewsItems);
break;
}
JToken paging = posts["paging"];
if (paging != null)
{
if (paging["next"] != null)
{
posts = JObject.Parse(fbClient.Get(paging.Value<String>("next")).ToString());
newsItems = (JArray)posts["data"];
}
}
}
return result;
}
And the helper method to retieve individual items:
private static IEnumerable<NewsItem> GetItemsFromJsonData(IEnumerable<JToken> items)
{
List<NewsItem> newsItems = new List<NewsItem>();
foreach (JToken item in items.Where(item => item["message"] != null))
{
NewsItem ni = new NewsItem
{
Message = item.Value<String>("message"),
DateTimeCreation = item.Value<DateTime?>("created_time"),
Link = item.Value<String>("link"),
Thumbnail = item.Value<String>("picture"),
// http://stackoverflow.com/questions/28319242/simplify-looking-up-nested-json-values-with-json-net/28359155#28359155
Image = (String)item.SelectToken("attachments.data[0].media.image.src") ?? (String)item.SelectToken("attachments.data[0].subattachments.data[0].media.image.src")
};
newsItems.Add(ni);
}
return newsItems;
}
NewsItem class I use:
public class NewsItem
{
public String Message { get; set; }
public DateTime? DateTimeCreation { get; set; }
public String Link { get; set; }
public String Thumbnail { get; set; }
public String Image { get; set; }
}
Ok I have written some basic generic webservices before but I have never tried to consume a 3rd party one.
The one I am trying to consume is
http://opendap.co-ops.nos.noaa.gov/axis/webservices/predictions/wsdl/Predictions.wsdl
I am not getting any results back from this what so ever and cannot figure out why.
More odd is it is not even reaching PredictionsClient_getPredictionsAndMetadataCompleted when I put a break point in the code it doesn't even reach it.
Any suggestions would be greatly appreciated
public void Bouy(double meters)
{
PredictionService.Parameters PredictionParams = new PredictionService.Parameters();
PredictionService.PredictionsPortTypeClient PredictionsClient = new PredictionService.PredictionsPortTypeClient();
GeoCoordinateWatcher gc = new GeoCoordinateWatcher(GeoPositionAccuracy.Default);
//gc.Position.Location.Latitude, gc.Position.Location.Longitude
GeoCoordinate myLocation = new GeoCoordinate(27.931631,-82.802582);
foreach (var bl in BouyLocation.GetAll())
{
GeoCoordinate otherLocation = new GeoCoordinate(bl.Lat, bl.Lon);
PredictionParams.beginDate = DateTime.Now.ToString("yyyyMMdd");
PredictionParams.endDate = DateTime.Now.AddDays(1.0).ToString("yyyyMMdd");
PredictionParams.stationId = bl.LocationID;
PredictionParams.timeZone = 0;
PredictionParams.unit = 1;
PredictionParams.dataInterval = 6;
PredictionsClient.getPredictionsAndMetadataCompleted += new EventHandler<PredictionService.getPredictionsAndMetadataCompletedEventArgs>(PredictionsClient_getPredictionsAndMetadataCompleted);
PredictionsClient.getPredictionsAndMetadataAsync(PredictionParams);
double mymeters = myLocation.GetDistanceTo(otherLocation);
if (mymeters < meters)
{
TextBlock DynTextBlock = new TextBlock
{
Name = "Appearance" + bl.LocationID,
Text = bl.LocationName + PredictionResult,
TextWrapping = System.Windows.TextWrapping.Wrap,
Margin = new Thickness(12, -6, 12, 0),
Style = (Style)Resources["PhoneTextSubtleStyle"]
};
DynamicAppearance.Children.Add(DynTextBlock);
this.nearByLocations.Add(new BouyLocationModel() { LocationName = bl.LocationName, LocationID = bl.LocationID, Lat = bl.Lat, Lon = bl.Lon });
}
}
var test = nearByLocations;
}
void PredictionsClient_getPredictionsAndMetadataCompleted(object sender, PredictionService.getPredictionsAndMetadataCompletedEventArgs e)
{
string err = e.Error.ToString();
PredictionResult = e.Result.ToString();
}
Loooking at the code you have here I think that you have used the importing of a ServiceReference to auto build the classes for you?
Unfortunately I have found that this is rather temperamental on WP7 and the only way I actually got it to work was when I connected it to a Microsoft WCF service. Connecting to anything else just doesn't work.
If you do google searches there are various pages talking about the fact it doesn't work and ways around it (which I couldn't get to work).
However, there are ways around it but it isn't as simple as the auto-generated stuff. Basically you do things manually.
Although there are other ways to manually create the web service what I did was follow the information in the following which worked well: http://zetitle.wordpress.com/2010/10/14/using-reactive-extensions-with-webrequest/
You will need to parse the response yourself but XML to LINQ works really well for this.
Hope that helps, or maybe someone will have the solution as it is something I am interested in knowing how to get working too
I'm using SharePoint web services in C#. I have my code working to check files and check them out using the Lists web service. I need to test to see if a file exists; I can find lots of examples for doing this using the object model API, but I can't seem to find a straightforward way of doing this using web services.
Try the Lists.GetListItems with a suitable CAML query.
A CAML query like
<Query><Where><Eq><FieldRef Name="FileLeafRef" /><Value Type="Text">Filename.rtf</Value></Eq></Where></Query>
should work; the field 'FileLeafRef' is where the filename is stored.
This code may do, it's a little rough, but demonstrates how to get a list of files based on the title.
public static bool PageExists(string listName, string webPath, string pageTitle)
{
string pageId = "";
IntranetLists.Lists lists = new IntranetLists.Lists();
lists.UseDefaultCredentials = true;
lists.Url = webPath + "/_vti_bin/lists.asmx";
XmlDocument doc = new XmlDocument();
doc.LoadXml("<Document><Query><Where><Contains><FieldRef Name=\"Title\" /><Value Type=\"Text\">" + pageTitle + "</Value></Contains></Where></Query><ViewFields /><QueryOptions /></Document>");
XmlNode listQuery = doc.SelectSingleNode("//Query");
XmlNode listViewFields = doc.SelectSingleNode("//ViewFields");
XmlNode listQueryOptions = doc.SelectSingleNode("//QueryOptions");
Guid g = GetWebID(webPath);
XmlNode items = lists.GetListItems(listName, string.Empty, listQuery, listViewFields, string.Empty, listQueryOptions, g.ToString());
}
return items.Count > 0;
}
public static XmlNodeList XpathQuery(XmlNode xmlToQuery, string xPathQuery)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlToQuery.OuterXml);
XmlNamespaceManager mg = new XmlNamespaceManager(doc.NameTable);
mg.AddNamespace("sp", "http://schemas.microsoft.com/sharepoint/soap/");
mg.AddNamespace("z", "#RowsetSchema");
mg.AddNamespace("rs", "urn:schemas-microsoft-com:rowset");
mg.AddNamespace("y", "http://schemas.microsoft.com/sharepoint/soap/ois");
mg.AddNamespace("w", "http://schemas.microsoft.com/WebPart/v2");
mg.AddNamespace("d", "http://schemas.microsoft.com/sharepoint/soap/directory");
return doc.SelectNodes(xPathQuery, mg);
}
I also had similiar problems with this.
I have tried the following FieldRefs without success: "Name", "FileLeafRef" and "LinkFilenameNoMenu".
The post located at http://www.johanolivier.blogspot.com details what I had to do to get it working.