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Get the Report →Create a Data Access Object for Instagram Data using JDBI
A brief overview of creating a SQL Object API for Instagram data in JDBI.
JDBI is a SQL convenience library for Java that exposes two different style APIs, a fluent style and a SQL object style. The CData JDBC Driver for Instagram integrates connectivity to live Instagram data in Java applications. By pairing these technologies, you gain simple, programmatic access to Instagram data. This article walks through building a basic Data Access Object (DAO) and the accompanying code to read and write Instagram data.
Create a DAO for the Instagram Media Entity
The interface below declares the desired behavior for the SQL object to create a single method for each SQL statement to be implemented.
public interface MyMediaDAO {
//insert new data into Instagram
@SqlUpdate("INSERT INTO Media (TagName, LikesCount) values (:tagName, :likesCount)")
void insert(@Bind("tagName") String tagName, @Bind("likesCount") String likesCount);
//request specific data from Instagram (String type is used for simplicity)
@SqlQuery("SELECT LikesCount FROM Media WHERE TagName = :tagName")
String findLikesCountByTagName(@Bind("tagName") String tagName);
/*
* close with no args is used to close the connection
*/
void close();
}
Open a Connection to Instagram
Collect the necessary connection properties and construct the appropriate JDBC URL for connecting to Instagram.
Instagram uses the OAuth 2 authentication standard. You will need to obtain the OAuthClientId, OAuthClientSecret, and CallbackURL by registering an app with Instagram. See the help documentation for a guide.
Built-in Connection String Designer
For assistance in constructing the JDBC URL, use the connection string designer built into the Instagram JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.
java -jar cdata.jdbc.instagram.jar
Fill in the connection properties and copy the connection string to the clipboard.
A connection string for Instagram will typically look like the following:
jdbc:instagram:OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;CallbackURL=http://localhost:portNumber;InitiateOAuth=GETANDREFRESH
Use the configured JDBC URL to obtain an instance of the DAO interface. The particular method shown below will open a handle bound to the instance, so the instance needs to be closed explicitly to release the handle and the bound JDBC connection.
DBI dbi = new DBI("jdbc:instagram:OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;CallbackURL=http://localhost:portNumber;InitiateOAuth=GETANDREFRESH");
MyMediaDAO dao = dbi.open(MyMediaDAO.class);
//do stuff with the DAO
dao.close();
Read Instagram Data
With the connection open to Instagram, simply call the previously defined method to retrieve data from the Media entity in Instagram.
//disply the result of our 'find' method
String likesCount = dao.findLikesCountByTagName("goldfish");
System.out.println(likesCount);
Write Instagram Data
It is also simple to write data to Instagram, using the previously defined method.
//add a new entry to the Media entity
dao.insert(newTagName, newLikesCount);
Since the JDBI library is able to work with JDBC connections, you can easily produce a SQL Object API for Instagram by integrating with the CData JDBC Driver for Instagram. Download a free trial and work with live Instagram data in custom Java applications today.