> For the complete documentation index, see [llms.txt](https://docs.veedna.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.veedna.com/gold-open-source-gos/gold-packages/integrating-lineaje-gos-artifactory-proxy-into-your-ci-cd-pipeline/http-response-codes.md).

# HTTP Response Codes

The Lineaje GOS Artifactory Proxy returns standard HTTP status codes. The following table describes each code, its meaning, and the recommended action for your build pipeline.

| **HTTP Status**           | **Meaning**                                                                                                                                                       | **Package Managers** | **Action Required**                                                                                                                                                                            |
| ------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 200 OK                    | Package is Gold Open Source and all policies passed. Artifact is streamed to the build tool.                                                                      | Maven, PyPI, npm     | No action required. Build proceeds normally.                                                                                                                                                   |
| 401 Unauthorized          | Request is missing credentials or the credentials are invalid.                                                                                                    | Maven, PyPI, npm     | Verify ARTIFACTORY\_CREDS is correctly configured and the credential ID matches exactly.                                                                                                       |
| 403 Forbidden             | Package is not Gold Open Source or a custom policy has blocked the download (enforce mode only).                                                                  | Maven                | Review the 'Policies violated' message in the build logs. Upgrade to a Gold-qualified version or request a policy exemption via the Lineaje platform.                                          |
| 404 Not Found             | Package is not Gold Open Source or a custom policy has blocked the download (enforce mode only). Also returned when the package/version genuinely does not exist. | PyPI, npm            | <p>Same as 403 Forbidden. Distinguish from a genuine 404 by checking for 'Policies violated' in the response body. </p><p>PyPI and npm package managers only recognize 404 for violations.</p> |
| 500 Internal Server Error | Package has not yet been analyzed by Lineaje. The package has been submitted for analysis.                                                                        | Maven, PyPI, npm     | Re-trigger the build after 5 to 10 minutes. If the error persists, contact Lineaje support.                                                                                                    |

{% hint style="info" %}
In Observe mode, the Firewall always returns 200 for valid packages, regardless of GOS status. Policy violation details are still logged to the Lineaje platform.
{% endhint %}


---

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