JavaScript

$fh.act({
  "act": "getTweets", // Name of the Cloud function to call
  "req": {
    "qs": "feedhenry" // Set of key/value pairs that are passed as paramaters to the Cloud function
  },
  "secure": true, // Whether or not to use https for the Cloud call. Default: true
  "timeout": 25000 // timeout value specified in milliseconds. Default: 60000 (60s)
}, function(res) {
  // Cloud call was successful. Alert the response
  alert('Got response from cloud:' + JSON.stringify(res));
}, function(msg,err) {
  // An error occured during the cloud call. Alert some debugging information
  alert('Cloud call failed with error message:' + msg + '. Error properties:' + JSON.stringify(err));
});

Android (Java)

//build the request object. The first parameter is the name of the cloud side function to be called,
//the second parameter is the data parameter for the function
FHActRequest request = FH.buildActRequest("getTweets", new JSONObject().put("qs", "feedhenry"));
//the request will be executed asynchronously
request.executeAsync(new FHActCallback() {
  @Override
  public void success(FHResponse res) {
    //the function to execute if the request is successful
    try {
      JSONArray resObj = res.getJson().getJSONArray("tweets");
      Log.d(TAG, resObj.toString(2));
      for(int i=0;i<resObj.length();i++){
        JSONObject event = resObj.getJSONObject(i);
        ...
      }
    } catch(Exception e){
      Log.e(TAG, e.getMessage(), e);
    }
  }

  @Override
  public void fail(FHResponse res) {
    //the function to execute if the request is failed
    Log.e(TAG, res.getErrorMessage(), res.getError());
  }
});

iOS (Objective-C)

FHActRequest * action = (FHActRequest *) [FH buildActRequest:@"getTweets" WithArgs:[NSDictionary dictionaryWithObject:@"feedhenry" forKey:@"qs"]];
  [action execAsyncWithSuccess:^(FHResponse * actRes){
    //the actRes will contain 10 tweets about "feedhenry"
    //the JSON response from the cloud will be parsed to NSDictionary automatically
    NSDictionary* resData = actRes.parsedResponse;
    NSArray * tweets = (NSArray *) [resData objectForKey:@"tweets"];
    //display tweets in the UI
...
} AndFailure:^(FHResponse * actFailRes){
  //if there is any error, you can check the rawResponse string
  NSLog(@"Failed to read tweets. Response = %@", actFailRes.rawResponse);
  }
];
//You can also use the delegate pattern with the FHActRequet object. If you use that pattern, you need to implement the FHResponseDelegate protocol and assign an instance to the FHActRequest instance. When the request is executed, replace the blocks with __nil__.