Real-time Analytics API Queue Wait Time Calculation Issue

General Discussion
1

How does the real-time analytics API actually calculate queue wait times when the GET /api/v2/routing/queues/{queueId}/estimatedwaittime endpoint loses data? SDK version 2.14.0 keeps returning null for wait_time field, and it’s throwing a vague timeout error 408 that doesn’t point to any specific module.

NICE usually fills those gaps with estimates, Five9 drops the record completely, and Talkdesk caches the state, while Genesys takes a balanced middle path that still breaks our reporting. Sorry for the newbie question, the docs don’t explain the exact failure reason clearly.

2 
const routingApi = new platformClient.RoutingApi();
const metrics = await routingApi.postRoutingQueuesQueueIdAnalyticsRealtime(
 queueId,
 {
 interval: 'PT1S',
 metrics: ['wait_time', 'talk_time'],
 groupBy: 'interval'
 }
);

You might want to adjust the INTERVAL setting before calling the endpoint. It’s usually the default aggregation window that skips sub-second updates, which causes the WAIT_TIME field to return null during peak routing loads. I typically handle this inside an Architect FLOW by setting a DATA ACTION to poll every two seconds instead of relying on the standard SDK callback. Please verify your OAuth SCOPES include view:queue and view:analytics, otherwise the gateway drops the packet with a 408. The timeout typically points to a missing METRIC FILTER rather than an actual network failure. Network logs usually show nothing. Payload structure tends to hide the issue. Just check it.

3

The real-time endpoint doesn’t cache intervals like that. You’ll hit a 408 Gateway Timeout when the EventBridge webhook drops the payload before the Lambda Data Action processes it. Try overriding the request_timeout in your CloudFormation stack instead:

Parameters:
 RequestTimeout: 60

Logs just show {"error": "upstream..." anyway. The routing queue state never syncs properly.

4

Hi all. Interval tweak worked. Real fix: patched codegen template stripping wait_time on spec mismatch. Forced generator to pull latest routing-queue-estimatedwaittime spec; overrode model serializer in config. 408 timeout vanishes. Client stops retrying malformed payload. PureCloudPlatformClientV2 flow is fine. Openapi generator was dropping read_only: true flag on response schema. Use this override in openapi-generator-config.yaml to prevent field nullification during build. Run npx @openapitools/openapi-generator-cli generate. Nulls disappear. Metric payload parses; no more choking on default aggregation window. Pass scope: ["analytics:read", "routing:analytics:read"] during oauth handshake. Prevents gateway drop before lambda layer.

generatorName: node
additionalProperties:
 useSingleRequestParameter: true
 supportsES6: true
 npmName: "genesys-cloud-custom-client"
modelPackage: models
operations:
 /api/v2/routing/queues/{queueId}/estimatedwaittime:
 parameters:
 - in: query
 name: conversationId
 required: false
 schema:
 type: string
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