Rai Blocklist Item API Error - 400 Bad Request

Question

Rai Blocklist Item Get API (link) which passes parameters such as subscriptionId, resourceGroupName, accountName, raiBlocklistName and raiBlocklistItemName. The response should be the properties of the Rai Blocklist Item such as isRegex and pattern. The point is when calling the API or even directly in this link (you can hit Try it), the response is always 400 Bad Request. If I provide a wrong Rai Blocklist Item Name, the expected response should be 404 Not Found but again the response is 400 Bad Request. This is not the expected behavior of the API.

Answer 1

Hello Felipe Rezende,

Welcome to the Microsoft Q&A and thank you for posting your questions here.

I understand that you are having Rai Blocklist Item API Error - 400 Bad Request.

This is a popular error, but instead of generalization. The core issue seems to be an inconsistent API response not just debugging advice, you need more specific investigation into the raiBlocklistItemName handling and potential API behavior anomalies. Here are some specific solutions for your scenario, also use the links for more detail:

1. Double-check that all parameters (subscriptionId, resourceGroupName, accountName, raiBlocklistName, and raiBlocklistItemName) are correct and properly URL-encoded. Then, validate the request headers, especially the Authorization token, and ensure they are correctly formatted. - https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/request-and-response
2. Use tools like Postman or curl to replicate the issue. This helps isolate whether the issue is in the API or the client-side implementation. - https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/use-postman-to-call-azure-rest-api
3. Check if there are constraints on raiBlocklistItemName (e.g., character limits, forbidden characters, or specific formats). Undocumented constraints might cause the API to reject valid-looking inputs. - https://learn.microsoft.com/en-us/rest/api/aiservices/accountmanagement/rai-blocklist-items/get
4. Review the response body of the 400 error. Most Azure APIs include detailed error messages indicating why the request failed. Look for clues such as:

• "Invalid format"
• "Missing parameter"
• "Unexpected value for raiBlocklistItemName"

For an example:

     {
       "error": {
         "code": "InvalidParameter",
         "message": "The parameter 'raiBlocklistItemName' is not in the correct format."
       }
     }

5. If the response body doesn’t clarify the issue, it could indicate inconsistent API behavior. You should:

•  Reach out to Azure support with your request details.
  

•  Log an issue on relevant GitHub repositories (e.g., `terraform-provider-azurerm`).
  

6. If the issue persists and the API consistently returns 400 instead of 404, use a preliminary validation request to check the existence of the raiBlocklistItemName before calling the API. For instance: To helps ensure the item exists and avoids unnecessary 400 errors. Query the list of blocklist items using a GET request for all items under the raiBlocklistName and match locally before making further calls. For an example:

     GET https://<api-base-url>/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.AI/raiBlocklists/{raiBlocklistName}/items?api-version=2024-10-01
     Authorization: Bearer <your-access-token>

https://learn.microsoft.com/en-us/azure/governance/resource-graph/overview and https://learn.microsoft.com/en-us/rest/api/aiservices/accountmanagement/rai-blocklist-items/list?view=rest-aiservices-accountmanagement-2024-10-01

I hope this is helpful! Do not hesitate to let me know if you have any other questions.

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