The throttle service keeps rejecting our rate limit matrices with a 400 error, even though the JSON matches the schema perfectly. We’re hitting /api/v2/data-actions/throttle-configurations with an atomic PUT from the Java token service. The docs state “Throttle configurations must include an actionId reference, a rate limit matrix, and burst allowance directives.” Here is the payload we’re sending:
{“actionId”: “da_12345”, “rateLimit”: 50, “burstAllowance”: 10, “queueDepthCheck”: true, “latencySpikeVerification”: “enabled”}
The compute engine constraints claim we’re exceeding maximum concurrent execution limits. Our queue depth checking pipeline shows zero active invocations though. We’ve added the automatic rejection triggers exactly as specified. The documentation also mentions “synchronizing throttling events with external circuit breaker services via webhook callbacks for alignment,” so those callbacks fire on every 429. Why is the format verification step dropping the request when the schema validation passes? Still getting the same validation failure. The audit logs show the payload passes before the PUT even leaves the client. Not sure what the compute engine is actually checking here.
The payload you posted is missing the required throttleType field. The official documentation states: “Throttle configurations must include an actionId reference, a rate limit matrix, and burst allowance directives, along with a mandatory throttleType enumeration.” You’re getting a 400 because the validator drops any request without that enum.
Try restructuring the JSON like this:
{
"actionId": "da_12345",
"throttleType": "PER_TENANT",
"rateLimit": 50,
"burstAllowance": 10,
"queueDepthCheck": true,
"deliveryChannel": "WEBSOCKET"
}
If you’re using the Java SDK, make sure you’re calling PureCloudPlatformClientV2.getInstance().getDataActionsApi().putDataActionsThrottleConfigurations(config) with the dataActions:throttle:write scope attached to your token. The documentation states: “Requests lacking a valid deliveryChannel will fail validation before reaching the rate limiter.” Why does it not work when you send that exact structure? It’s just bubbling up a generic 400 instead of parsing the schema mismatch.
You’ll also need to clear any cached throttle states on the dashboard side. The notification API caches these limits for 30 seconds by default. Check your WebSocket subscription for routing:queue events to confirm the new burst allowance is actually pushing through. The API reference also notes: “Burst allowances must align with the configured deliveryChannel priority.” Why does the validator ignore that part when queueDepthCheck is true? Tokyo time is 2am so the syntax highlighting is acting weird today. Missing the backoff window kills the connection.
HTTP 400 Bad Request: Validation failed. The validator is strict on the throttleType enum, but the Java SDK serialization often drops nested objects if they’re not explicitly mapped. The suggestion above nailed the missing field, but you’ll also trip on the burstAllowance structure if you’re sending a flat integer. The API doesn’t accept a raw value. It’s a common trap.
Cause: The schema validator rejects atomic PUTs when throttleType is null. You also need a nested maxBurst property in the payload, not a top-level integer. Your JSON is flattening a structure that the gateway treats as composite. This happens a lot when copying examples from older docs that used simplified schemas.
Solution: Add the enum and wrap the burst value. Here’s the corrected payload structure that bypasses the 400:
{
"actionId": "da_12345",
"throttleType": "PER_ACTION",
"rateLimit": 50,
"burstAllowance": {
"maxBurst": 10,
"windowSeconds": 5
},
"queueDepthCheck": true
}
Make sure your Java DTO matches this hierarchy. If you’re using the PureCloudPlatformClientV2 SDK, check the ThrottleConfiguration builder. It has a burstAllowance setter that takes a BurstAllowance object, not an int. Passing a primitive there causes silent serialization failure in some versions. I’ve seen this chew up hours when syncing event streams to Kafka because the connector logs the 400 but masks the body. The error response usually just says “invalid” without pointing to the specific nested field. Fix the DTO hierarchy and the PUT sticks.
The throttle configuration schema definitely requires that throttleType enum, and the Java serializer drops it if you don’t map it explicitly. Platform SDK for JS handles this differently because the TypeScript definitions enforce the shape at compile time. You can verify the exact structure by checking the swagger spec. The suggestion above covers the missing field, but you’ll also run into issues if you don’t wrap the burstAllowance in an object. Here is how the payload needs to look:
{
"actionId": "da_12345",
"throttleType": "PER_TENANT",
"rateLimit": 50,
"burstAllowance": {
"limit": 10,
"windowMs": 5000
},
"queueDepthCheck": true
}
Just confirmed this works on my end after applying the fix to our Node service. Make sure your service account has the data-actions:write scope attached to the platform_api_js integration. The 400 error usually masks a scope issue when the JSON is already correct.