[GH-ISSUE #58] Wrong URL for eu-central-1 Developer Q API #38

New issue

Closed

opened 2026-02-27 07:17:37 +03:00 by kerem · 1 comment

kerem commented

2026-02-27 07:17:37 +03:00

Owner

Originally created by @saaj on GitHub (Jan 27, 2026).
Original GitHub issue: https://github.com/jwadow/kiro-gateway/issues/58

I was trying the gateway (with Developer Q) and to make it work in eu-central-1 I needed to patch kiro/config.py, to make KIRO_API_HOST_TEMPLATE = "https://q.{region}.amazonaws.com" (i.e. to make it the same as KIRO_Q_HOST_TEMPLATE), because there's no such host:

$ host codewhisperer.eu-central-1.amazonaws.com
Host codewhisperer.eu-central-1.amazonaws.com not found: 3(NXDOMAIN)

Also with all debugging turned on, the hostname is not logged, so I had to patch the logging to output what's actually not resolving. This AWS firewall whitelist page may be relevant.

Originally created by @saaj on GitHub (Jan 27, 2026). Original GitHub issue: https://github.com/jwadow/kiro-gateway/issues/58 I was trying the gateway (with Developer Q) and to make it work in `eu-central-1` I needed to patch `kiro/config.py`, to make `KIRO_API_HOST_TEMPLATE = "https://q.{region}.amazonaws.com"` (i.e. to make it the same as `KIRO_Q_HOST_TEMPLATE`), because there's no such host: ``` $ host codewhisperer.eu-central-1.amazonaws.com Host codewhisperer.eu-central-1.amazonaws.com not found: 3(NXDOMAIN) ``` Also with all debugging turned on, the hostname is not logged, so I had to patch the logging to output what's actually not resolving. This [AWS firewall whitelist page][1] may be relevant. [1]: https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/firewall.html

kerem

2026-02-27 07:17:37 +03:00

closed this issue
added the
bug

fixed
labels

kerem commented

2026-02-27 07:17:38 +03:00

Author

Owner

@jwadow commented on GitHub (Jan 30, 2026):

Hey, thanks for the detailed report and the fix!

The issue was that codewhisperer.{region}.amazonaws.com only exists for us-east-1. According to AWS docs, the correct endpoint for all regions (including us-east-1) is q.{region}.amazonaws.com.

Fixed by:

Changed KIRO_API_HOST_TEMPLATE to use q.{region}.amazonaws.com
Added logging for API hosts and URLs to help diagnose similar DNS issues in the future

The gateway now works in all AWS regions (us-east-1, eu-central-1, etc)

Also added you to CONTRIBUTORS.md for finding and fixing this critical issue. Thanks for making the gateway better!

@jwadow commented on GitHub (Jan 30, 2026): Hey, thanks for the detailed report and the fix! The issue was that `codewhisperer.{region}.amazonaws.com` only exists for us-east-1. According to AWS docs, the correct endpoint for all regions (including us-east-1) is `q.{region}.amazonaws.com`. Fixed by: - Changed `KIRO_API_HOST_TEMPLATE` to use `q.{region}.amazonaws.com` - Added logging for API hosts and URLs to help diagnose similar DNS issues in the future The gateway now works in all AWS regions (us-east-1, eu-central-1, etc) Also added you to CONTRIBUTORS.md for finding and fixing this critical issue. Thanks for making the gateway better!