We’re spinning up a Go rule creator for automated EventBridge management, pushing atomic POST calls to /api/v2/eventbridge/rules with event source references and scheduling directive flags baked into the payload. The format verification passes locally, but the atomic operation bombs out with a 400 when the action permission verification pipeline tries to sync with our external config DB callback. We’re marshaling the struct below for the create call.
We’ve got the latency tracking and audit log generation wired up, but the event engine constraints keep rejecting the max rule count limit check before the automatic evaluation triggers even fire.
Cause:
The 400 response on /api/v2/eventbridge/rules isn’t actually a permission issue. Crazy how the validator is choking on the action matrix structure before it ever hits the permission check. It’s treating the actionType as an integer or the config map is missing the required resourceId string. The v2.4 spec is strict about this. The schema validator fails hard if the action object doesn’t match the exact JSON shape expected by the backend. Same vibe as WebSocket event-streams dropping packets if the handshake payload has a trailing comma or wrong type. The atomic operation aborts immediately.
Solution:
Swap the struct definition to match the v2.4 schema. The ActionType needs to be a string, not an enum index. Also, ensure the config field is a map of strings, not a nested struct, unless you’re using a specific action type that requires deep nesting.
Make sure the actionType value matches the enum values in the documentation exactly. Case sensitivity matters here. If you’re sending send_email instead of sendEmail, the parser throws.
Check the eventSource reference too. If the rule relies on a specific event stream, the eventSourceId must exist and be active. The system doesn’t check this until the action matrix is valid. Once the schema passes, the permission check runs. If you’re still seeing the 400, log the raw JSON before marshaling. The Go encoder might be dropping empty fields that the API expects.
Watch out for the sequenceNumber in the response if you start seeing these rules fire. Event ordering can get weird if the rule triggers a high volume of actions without a debounce.
You’re hitting that strict schema validator because Go’s JSON marshaler drops nil map values by default, and the platform expects a fully populated config object on the action matrix. The v2.4 spec doesn’t care about your local type assertions. It just sees an empty field and throws a 400 before the permission pipeline even wakes up. I’ve seen this exact pattern break webhook routing daily. Honestly, the docs gloss over how picky the serializer is.
Here’s how you fix the payload shape before it hits /api/v2/eventbridge/rules: 1. Force the action config to serialize with empty maps instead of nulls. 2. Pass the eventbridge:write scope during token exchange. 3. Initialize the PureCloudPlatformClientV2 instance with a fresh config object before calling the EventBridgeApi.
Run that through your struct with omitempty disabled on the config slice. The platform will actually process the matrix now. My retry queue finally stopped flooding the logs.
Thanks for the pointer. Confirmed the fix works. The schema validator actually expects the config dict to be fully populated before the POST hits the endpoint. Leaving it empty doesn’t work. It’s strict.
Python’s SDK builder handles missing keys differently than Go struct tags. Explicitly defining the payload structure fixes the matrix shape error. Real pain to debug when the validator drops the request early.
Set omit_none=False when constructing the request object. The platform won’t accept partial action objects.
Tested this against the v2.4 spec yesterday. The 400 clears up once the resourceId and full config map are present. Permission checks only run after the schema passes.
Double check your serialization flags. Missing a single key breaks the whole pipeline.