Reading and Writing Data Using the Confluence API

Hey there, fellow JavaScript devs! Ready to dive into the world of Confluence API? Let's talk about syncing data for user-facing integrations. I know you're all about getting straight to the point, so let's jump right in!

Setting Up the Confluence API Client

First things first, let's get our environment ready. You'll need to install the Confluence API client:

npm install confluence-api

Now, let's initialize our client:

const Confluence = require('confluence-api');
const confluence = new Confluence({
    host: 'your-domain.atlassian.net',
    username: '[email protected]',
    password: 'your-api-token'
});

Pro tip: Always use an API token instead of your actual password. Safety first!

Reading Data from Confluence

Alright, time to fetch some data! Here's how you can grab a page:

confluence.getContentById('pageId', (err, data) => {
    if (err) {
        console.error('Oops!', err);
        return;
    }
    console.log('Page content:', data.body.storage.value);
});

Need to handle pagination? No sweat:

function getAllPages(callback, start = 0, limit = 25, allPages = []) {
    confluence.getContentBySpaceKey('SPACE_KEY', { start, limit }, (err, data) => {
        if (err) {
            callback(err);
            return;
        }
        allPages = allPages.concat(data.results);
        if (data.size === limit) {
            getAllPages(callback, start + limit, limit, allPages);
        } else {
            callback(null, allPages);
        }
    });
}

Writing Data to Confluence

Creating a new page is a breeze:

const newPage = {
    type: 'page',
    title: 'My Awesome New Page',
    space: { key: 'SPACE_KEY' },
    body: {
        storage: {
            value: '<p>Hello, Confluence!</p>',
            representation: 'storage'
        }
    }
};

confluence.postContent(newPage, (err, data) => {
    if (err) {
        console.error('Uh-oh!', err);
        return;
    }
    console.log('Page created:', data.id);
});

Implementing Data Synchronization

Here's a simple sync strategy:

async function syncData(localData, confluencePageId) {
    try {
        const confluenceData = await getConfluenceData(confluencePageId);
        const mergedData = mergeData(localData, confluenceData);
        await updateConfluenceData(confluencePageId, mergedData);
        console.log('Sync successful!');
    } catch (error) {
        console.error('Sync failed:', error);
    }
}

Error Handling and Rate Limiting

Always be prepared for errors and respect those rate limits:

function retryRequest(fn, maxRetries = 3) {
    return new Promise((resolve, reject) => {
        fn()
            .then(resolve)
            .catch((error) => {
                if (maxRetries <= 0) {
                    return reject(error);
                }
                setTimeout(() => {
                    retryRequest(fn, maxRetries - 1).then(resolve).catch(reject);
                }, 1000);
            });
    });
}

Optimizing Performance

Caching is your friend:

const NodeCache = require('node-cache');
const cache = new NodeCache({ stdTTL: 600 });

function getCachedData(key, fetchFunction) {
    const cachedData = cache.get(key);
    if (cachedData) return Promise.resolve(cachedData);

    return fetchFunction().then(data => {
        cache.set(key, data);
        return data;
    });
}

Security Considerations

Never, ever hardcode those API keys:

const confluence = new Confluence({
    host: process.env.CONFLUENCE_HOST,
    username: process.env.CONFLUENCE_USERNAME,
    password: process.env.CONFLUENCE_API_TOKEN
});

Wrapping Up

And there you have it! You're now equipped to read, write, and sync data like a Confluence pro. Remember, the key to a smooth integration is efficient syncing, robust error handling, and a sprinkle of performance optimization.

Keep experimenting, and don't hesitate to dive into the Confluence API docs for more advanced features. Happy coding, and may your integrations be ever seamless!