This behavior is likely due to HTTP response buffering or proxy/interceptor settings on your local machine, not in your server code. Here’s why and how to address it:
- Proxy/Network: Your local machine may have a proxy, VPN, or security software that buffers or inspects HTTP responses, causing partial content to appear before the full response is received.
- Postman Settings: Postman on your machine might be configured differently (e.g., using a proxy, or with a different HTTP version).
- No-Proxy Bypass: If your localhost requests are routed through a proxy (see previous conversation), the proxy may mishandle streaming or chunked responses.
### How to ensure the response is sent only after the full JSON is ready
- Synchronous Processing: Your code already reads and parses the camera response fully before returning the JSON, so the server should not send a response until everything is ready.
- Disable Proxy for Localhost: Make sure `localhost` and `127.0.0.1` are in your no-proxy list (see previous answer).
- Check Postman Settings: In Postman, go to **Settings > Proxy** and ensure "Use System Proxy" is off, or add `localhost` to the bypass list.
- Network Stack: Check for any local firewall, antivirus, or VPN that could interfere with HTTP traffic.
- The issue is almost certainly on your local client/network, not in your server code.
- Ensure no proxy or network tool is intercepting or buffering your localhost requests.
- Your server code is correct if it synchronously processes and returns the JSON.
For debugging: Try using `curl` from your terminal to compare results. If `curl` works fine but Postman does not, the issue is with Postman or your local network stack.