Have you ever wondered how big apps handle millions of messages every second without slowing down or crashing? As digital platforms keep changing, so does our code. To build apps that can grow smoothly, we break down a big app into smaller, independent parts called microservices — each doing its own job.
One big question when building apps with lots of these microservices is: how do they talk to each other?
The usual way, using REST APIs, can make these parts too tightly connected. That means if you change one, it might accidentally break others — not good for growing or fixing your app.
This is where event streaming comes in. Think of it as services sending out messages about what they’ve done, and other services listening if they’re interested. This keeps everything more flexible and easier to manage.
By the end of this blog series, you’ll understand how Kafka, a popular event streaming tool, helps these chatting services work smoothly together.
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