Question 1

golongpoll vs WebSockets: which should I use for real-time updates?

Accepted Answer

golongpoll is better for simpler, HTTP-based pub-sub where WebSockets are overkill or not supported, offering easier setup and compatibility with existing HTTP infrastructure. However, for low-latency, bidirectional communication like chat apps, WebSockets are more performant and real-time.

Question 2

How do I add authentication to a golongpoll server?

Accepted Answer

You need to wrap the subscription and publish handlers with custom HTTP logic, as shown in the authentication example in the README. This involves checking headers or tokens before invoking the inner handlers, adding extra code for security.

Question 3

What happens if my golongpoll server restarts with in-memory storage?

Accepted Answer

All events are lost unless you use the optional FilePersistorAddOn, which persists events to disk and repopulates them on restart. Without it, you'll need to handle event recovery manually, which can disrupt real-time flows.

Question 4

Can I use golongpoll with frameworks other than Gin, like Echo or Fiber?

Accepted Answer

Yes, since it's based on standard Go HTTP handlers, you can wrap the managers' handlers for any framework that supports http.HandlerFunc, similar to the Gin example. However, you'll need to adapt the wrapping code yourself, as no out-of-the-box integrations are provided.

Question 5

Is there a way to subscribe to multiple categories at once in golongpoll?

Accepted Answer

No, the library only supports subscribing to one category per HTTP call, as stated in the README. To monitor multiple categories, clients must make separate requests or use multiple client instances, which can increase overhead.

Question 6

How does golongpoll handle high concurrent user loads?

Accepted Answer

It relies on Go's goroutines and channels for concurrency, but in-memory buffering with configurable limits (like MaxEventBufferSize) can become a bottleneck under heavy load. Scaling requires careful tuning or persistence add-ons to avoid data loss.

golongpoll

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