Develop Reference

Using the NCDC's Climate Data Online API with Java

I have never used a RESTful API. I want to use this API to get historical weather data, but I can't find a simple tutorial taking me from end to end making an app that uses a RESTful API in Java. I'm not sure what steps I should take to get the data.
The steps listed on the getting started page are not Java specific, so I'm not sure how to use that info. I have requested a token and got it, so I'm good on that front.
What I need help with is getting a minimal example showing how, with just a token and formatted URL, you can get JSON data from the API.
Some things I've looked into are javax.ws.rs and jersey client, but I'm not sure how to use those either.
Thanks in advance :)

Using Fetch you can do:
fetch(url, {options})
.then(data => {
// Do some stuff here
})
.catch(err => {
// Catch and display errors
})
Where the url is the one from the getting started page.
And you can get whatever data you need from data.
Say you need to save just the name in a local var, then you do:
.then(data => {
name = data.name
})

Serenity + Rest services

I am trying to demo serenity with Restassured at my workplace here and show them how awesome and easy it is to use in comparison to using jasmine.js
How ever I am stuck with few things in the basic test I am trying to do
My test says
Given we have valid credentials for the client using this test
When we try to serach for a medicine '<medicine>'
Then we get a valid '<perfLabel>' response with search results
|medicine|perflabel|
|Salbutamol|perflabel1|
|Panadol|perflabel2|
|Salbutamol (GA)|perflabel3|
When I go into the next step
#When("we try to serach for a medicine '(.*)' ")
public void tryToSearchUsingEquals(String medicine)
{
tsApiActions.requestServiceSearchWhichEquals(medicine);
}
In my Step method
#Step
public void requestServiceSearchWhichEquals(String medicine)
{
host = "http://www.int.abc.com.au/api/cs/v1/terminology-service/trade-product/search-summary?offset=0&limit=20&prefLabel=eq "+medicine+"&sort=prefLabel DESC&cache=false";
requestSend(host);
}
The questions I have are
How do i inject the variables(Salbutamol, Panadol) into the uri?
How do I put this URI into a seperate properties file and call it in the Step method?
Any help is really appreciated
Thanks

RestAssured requests follow the same code structure which should be added into your sendRequest method:
given().
param("prefLabel", medicine).
when().
get(URL).
then().
body(containsString(medicine));
URL can come from property file, but you need to create a method to upload it before test run and then you have to create a getPropety() method to get the current value you need.
I suggest to read the official documentation here:
https://github.com/rest-assured/rest-assured

Is it possible to get Direct Messages from Twitter by a specific user using the Twitter4j library?

I'm using the Twitter4j library to develop a proyect that works with Twitter, one of the things what I need is to get the Direct messages, I'm using the following code:
try{
List<DirectMessage> loStatusList = loTwitter.getDirectMessages();
for (DirectMessage loStatus : loStatusList) {
System.out.println(loStatus.getId() + ",#" + loStatus.getSenderScreenName() + "," + loStatus.getText() + "|");
}
}
catch(Exception e)
It works fine, but what the code returns is a list of the most recent messages in general. What I want is to get those direct messages using some kind of filter that allows finding them by a user that I indicate.
For example, I need to see the DM only from user #TwitterUser.
Is this posible with this library?
All kinds of suggestions are accepted, even if I should use another library I would be grateful if you let me know.

It looks like the actual Twitter API doesn't support a direct filter on that API, by username anyway. (See Twitter API doc: GET direct_messages.)
Which means, you'd have to make multiple calls to the API with pagination enabled, and cache the responses into a list.
Here is an example of pagination wtih Twitter4J getDirectMessages().
In that example, use the existing:
List<DirectMessage> messages;
But inside the loop, do:
messages.addAll(twitter.getDirectMessages(paging));
Note: you only would have to do this once. And in fact, you should persist these to a durable local cache like Redis or something. Because once you have the last message id, you can ask the Twitter API to only return "messages since id" with the since_id param.
Anyway, then on the client side you'd just do your filtering with the usual means in Java. For example:
// Joe is on twitter as #joe
private static final String AT_JOE = "Joe";
// Java 8 Lambda to filter by screen name
List<DirectMessage> messagesFromJoe = messages.stream()
.filter(message -> message.getSenderScreenName().equals(AT_JOE))
.collect(Collectors.toList());
Above, getSenderScreenName() was discovered by reading the Twitter4J API doc for DirectMessage.

How to retrieve from Azure mobile services using android studio

I am new to Android and Windows Azure. I have successfully inserted data from Android application but how do I retrieve single data and post that data on a TextView?
The read function after the gettable class is also not working. What is the exact function use for it? I have followed these instructions but they did not work for me, also I do not understand the documentation.

Currently, I just can provide some tutorials about how to use query data from azure database. I recommend you can refer to this official document about how to use Azure Client Library using Java: https://azure.microsoft.com/en-us/documentation/articles/mobile-services-android-how-to-use-client-library . You can focus on two part: “how to query data from a mobile service” and “how to bind data to the UI”.
At the same time, you can view this video from Channel 9: https://channel9.msdn.com/Series/Windows-Azure-Mobile-Services/Android-Getting-Started-With-Data-Connecting-your-app-to-Windows-Azure-Mobile-Services.
The sample code project of this tutorial, please go to the GitHub link https://github.com/Azure/mobile-services-samples/tree/master/GettingStartedWithData .
For the ‘getTable(Class )’ function is not working, please double check whether the class name is same as table name. If they are same, you can use it like below:
MobileServiceTable<ToDoItem> mToDoTable = mClient.getTable(ToDoItem.class);
If not, you can write you code like this:
MobileServiceTable<ToDoItem> mToDoTable = mClient.getTable("ToDoItemBackup", ToDoItem.class);
For further better support, please share more detail about your code snippet .

How do I write Facebook apps in Java?

I have looked in vain for a good example or starting point to write a java based facebook application... I was hoping that someone here would know of one. As well, I hear that facebook will no longer support their java API is this true and if yes does that mean that we should no longer use java to write facebook apps??

There's a community project which is intended to keep the Facebook Java API up to date, using the old official Facebook code as a starting point.
You can find it here along with a Getting Started guide and a few bits of sample code.

Facebook stopped supporting the official Java API on 5 May 2008 according to their developer wiki.
In no way does that mean you shouldn't use Java any more to write FB apps. There are several alternative Java approaches outlined on the wiki.
You might also want to check this project out; however, it only came out a few days ago so YMMV.

I write an example using facebook java api
It use FacebookXmlRestClient in order to make client request and print
all user infos
http://programmaremobile.blogspot.com/2009/01/facebook-java-apieng.html

BatchFB provides a modern Java API that lets you easily optimize your Facebook calls down to a minimum set:
http://code.google.com/p/batchfb/
Here's the example taken from the main page of what you can effectively do in a single FB request:
/** You write your own Jackson user mapping for the pieces you care about */
public class User {
long uid;
#JsonProperty("first_name") String firstName;
String pic_square;
String timezone;
}
Batcher batcher = new FacebookBatcher(accessToken);
Later<User> me = batcher.graph("me", User.class);
Later<User> mark = batcher.graph("markzuckerberg", User.class);
Later<List<User>> myFriends = batcher.query(
"SELECT uid, first_name, pic_square FROM user WHERE uid IN" +
"(SELECT uid2 FROM friend WHERE uid1 = " + myId + ")", User.class);
Later<User> bob = batcher.queryFirst("SELECT timezone FROM user WHERE uid = " + bobsId, User.class);
PagedLater<Post> feed = batcher.paged("me/feed", Post.class);
// No calls to Facebook have been made yet. The following get() will execute the
// whole batch as a single Facebook call.
String timezone = bob.get().timezone;
// You can just get simple values forcing immediate execution of the batch at any time.
User ivan = batcher.graph("ivan", User.class).get();

You might want to try Spring Social. It might be limited in terms of Facebook features, but lets you also connect to Twitter, LinkedIn, TripIt, GitHub, and Gowalla.
The other side of things is that as Facebook adds features some of the old API's might break, so using a simpler pure FB api (that you can update when things don't work) might be a good idea.

This tutorial will literally step you through everything you need to do: http://ocpsoft.org/opensource/creating-a-facebook-app-setup-and-tool-installation/
It comes in 3 parts. The other 2 are linked from there.