Step by Step Guide to Building a Confluence API Integration in Java

Introduction

Hey there, fellow developer! Ready to supercharge your Java project with Confluence integration? You're in the right place. We'll be using the org.randombits.confluence:confluence-conveyor package to make our lives easier. This nifty library wraps the Confluence API in a Java-friendly package, letting us focus on building cool stuff instead of wrestling with HTTP requests.

Prerequisites

Before we dive in, make sure you've got:

• A Java development environment (I know you've got this covered)
• Access to a Confluence instance and an API token
• Maven or Gradle for managing dependencies (dealer's choice)

Setting up the project

Let's kick things off by adding the confluence-conveyor dependency to your project. If you're using Maven, add this to your pom.xml:

<dependency>
    <groupId>org.randombits.confluence</groupId>
    <artifactId>confluence-conveyor</artifactId>
    <version>1.0.0</version>
</dependency>

For you Gradle fans out there, pop this into your build.gradle:

implementation 'org.randombits.confluence:confluence-conveyor:1.0.0'

Initializing the Confluence client

Now, let's get that Confluence client up and running:

import org.randombits.confluence.conveyor.ConfluenceClient;

ConfluenceClient client = ConfluenceClient.builder()
    .baseUrl("https://your-confluence-instance.atlassian.net")
    .apiToken("your-api-token")
    .build();

Easy peasy, right? Just replace the URL and API token with your own.

Basic operations

Fetching a page

Let's grab a page and see what we've got:

Page page = client.getPage("PAGE_ID");
System.out.println("Page title: " + page.getTitle());

Creating a new page

Time to leave your mark on Confluence:

Page newPage = new Page();
newPage.setTitle("My Awesome New Page");
newPage.setContent("This page was created via the API. How cool is that?");
newPage.setSpaceKey("SPACE_KEY");

Page createdPage = client.createPage(newPage);
System.out.println("Created page with ID: " + createdPage.getId());

Updating an existing page

Made a typo? No worries, we've got you covered:

Page pageToUpdate = client.getPage("PAGE_ID");
pageToUpdate.setContent("Updated content goes here");
client.updatePage(pageToUpdate);

Deleting a page

Sometimes, we all need a fresh start:

client.deletePage("PAGE_ID");

Advanced operations

Working with attachments

Let's spice up our pages with some attachments:

File fileToAttach = new File("path/to/your/file.pdf");
client.addAttachment("PAGE_ID", fileToAttach);

Managing page permissions

Keep your secrets safe:

PermissionSet permissions = new PermissionSet();
permissions.addPermission("group", "confluence-users", PermissionType.VIEW);
client.updatePagePermissions("PAGE_ID", permissions);

Searching for content

Find that needle in the Confluence haystack:

SearchResult results = client.search("your search query");
results.getResults().forEach(result -> System.out.println(result.getTitle()));

Error handling and best practices

Always wrap your API calls in try-catch blocks to handle those pesky ConfluenceApiExceptions. And remember, with great power comes great responsibility – don't hammer the API too hard. Use rate limiting and exponential backoff when needed.

Logging is your friend. Sprinkle some log statements to make debugging a breeze:

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

private static final Logger logger = LoggerFactory.getLogger(YourClass.class);

// Later in your code...
logger.info("Updating page with ID: {}", pageId);

Testing the integration

Unit testing is crucial. Mock that ConfluenceClient and test your logic:

@Test
void testPageCreation() {
    ConfluenceClient mockClient = mock(ConfluenceClient.class);
    when(mockClient.createPage(any())).thenReturn(new Page());
    
    // Your test logic here
}

For integration tests, spin up a test Confluence instance. Docker makes this a piece of cake.

Conclusion

And there you have it! You're now armed with the knowledge to build a robust Confluence API integration in Java. Remember, the confluence-conveyor docs are your best friend for diving deeper into the API's capabilities.

Now go forth and integrate! Your Confluence pages are waiting for you to work your magic. Happy coding!