Integrate MongoDB Realm with Twitter

MongoDB Realm is one of the most popular NoSQL databases which was built to handle the scalability and concurrency. It was developed by 10gen, which later changed its name as MongoDB. The database provides a document-oriented structure which aids in the management of structured data.

Twitter is an online social networking service that allows users to create posts called tweets that are made up of text, photos and links. Tweets are listed on live streams, and can be embedded on other web sites. Twitter has more than 284 million active users.

Integration of MongoDB Realm and Twitter

Integrating MongoDB Realm with Twitter helps in the development of social media applications. It results in the efficient data storage and retrieval of information for Twitter. The integration invpves the two services’ endpoints. In order to integrate, one must have a username and password of Twitter account, and the Twitter API key. To integrate, MongoDB Realm requires fplowing steps:

Step 1. Create a new directory for storing the project files.

Step 2. Download the package from Github repository.

Step 3. Fplow the instructions given in the README file to install MongoDB Realm in a directory named ‘realm’. The fplowing instructions must be fplowed in order to run the app:

Run Maven with command “mvn compile”. Run the server with command “java -jar target/realm-1.4.0-SNAPSHOT-with-dependencies.jar” Browse http://localhost:8080/twitter in a browser to see a home page with sample data in JSON format.

Now we will discuss how to write data to MongoDB Realm from twitter application. For this purpose, we need to fplow the steps given below:

Step 1. Get the access token from Twitter. Then, make a POST request to https://api.twitter.com/oauth2/token with your consumer key, consumer secret, access token, and access token secret. The response will include an access token that may be used to make requests to Twitter REST API endpoints.

Step2. Get user information by making a GET request with URL https://api.twitter.com/1.1/users/show.json?screen_name=<your-username>. The screen name is a string that will be used for searching tweets by user names and handles. You can get the screen name from your profile or find it through a search query by using screen_name=<your-username> . The response will contain a JSON object with all user information including username, friends count, fplowers count and other details. This information will be used during building the Realm model for Twitter data.

Step 3. Now create a JSON object using the values retrieved from Twitter API endpoint and export it into a class variable. It will be used while creating realm model for Twitter data.

Step 4. Generate an instance of Realm model using the fplowing code:

@RealmClass public class User extends RealmObject { private String username; private String screen_name; public String getUsername(. { return username; } public void setUsername(String username. { this.username = username; } public String getScreenName(. { return screen_name; } public void setScreenName(String screen_name. { this.screen_name = screen_name; } }

Step 5. To create an instance of User class, use the fplowing code:

User user = new User(); user.setUsername("admin"); user.setScreenName("admin"); realm.beginTransaction(); realm.copyToRealm(user); realm.commitTransaction();

In this way, you will be able to store data into MongoDB Realm from twitter application.

Benefits of Integration of MongoDB Realm and Twitter

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