Addressing FHttpModule Threading | Developers Seek Clarification Amid Confusion

Amid escalating concerns, developers are voicing their confusion over threading in FHttpModule. Recent discussions on forums include insights on callback execution that add urgency to the dialogue.

The Key Issues at Stake

As the community dives deeper into HTTP requests, uncertainty grows around whether callback functions will execute on the game thread. One developer noted, "I'm setting up HTTP requests and checking if I'm on the game thread, but I see contradicting info about callbacks."

Insights from Developers

1. Clarification on Threading Behavior: Several comments have clarified that HTTP callback delegates typically run on the game thread unless specified otherwise.

   "HTTP callback delegates are executed on the game thread unless changed by: SetDelegateThreadPolicy(EHttpRequestDelegateThreadPolicy::CompleteOnHttpThread); in which case the callback will be executed on the HTTP thread."

2. Best Practices for Binding: Developers are sharing code strategies. For instance, one noted that they're using HttpRequest->OnProcessRequestComplete().BindUObject(this, &AMyClass::OnResponseReceived) but plan to switch to BindWeakLambda for safer execution as the object may be destroyed.

3. Execution Flow Management: An experienced user suggested employing the ExecuteOnGameThread() function to ensure operations run correctly on the game thread regardless of the original calling context.

Sentiments from the Community

While quite a few are hopeful about shared learning, others show frustration regarding the learning curve. One developer commented, "Those operations are async by nature; it's best not to block the game thread while they happen."

In general, there's an ongoing effort to improve documentation and support regarding FHttpModule, as many developers seek effective solutions and shared expertise.

Key Takeaways

• 🔄 Often, callbacks run on the game thread unless specified differently.

• 📜 "You should handle the execution flow properly when the callback occurs," advises a developer.

• ⚙️ Community support remains crucial; many developers rely on forums for clarification and help.

As conversations continue to unfold, it remains to be seen if collective efforts lead to a shared understanding of FHttpModule threading. With dedicated collaboration, developers might pave a smoother path forward in navigating these challenges.