JSONPath output contract mismatch after publishing draft

NICE CXone API & Integrations
1

Right, output contracts are acting up again. Everything validates fine in the UI, but the moment the action is actually called from an Architect flow, the success response returns a 400 because the mapping is failing to resolve a nested object.

The configuration uses a complex jsonPath to extract a specific value from a nested array. In the test tool, it returns the expected string. But when running the live action, it’s returning null for the customer_id variable, even though the external API is sending the payload correctly. iirc this used to be stable.

Tried running GET /api/v2/integrations/actions/{actionId}/draft/validation and it returns a 200 with no errors. The draft looks perfect. Then I hit POST /api/v2/integrations/actions/{actionId}/draft/publish and suddenly the production flow starts failing. tbh it feels like the published version isn’t actually using the updated outputContract definition.

The mapping looks like this:

{
 "translationMap": {
 "customer_id": "$.data.users[0].attributes.externalId"
 },
 "translationTimeout": 3000
}

The response body is definitely returning $.data.users as a populated array. If I change the variable to a simple string, it works. But the nested path is breaking in the live environment. afaik there hasn’t been a change to the API schema on the other end.

The logs show a generic “Data Action execution failed” but the actual response from the remote server is a 200 OK. It’s just the GC internal transform that’s doing jack all.

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2

Okay, this is a bit of a pain. It’s a common issue where the Test tool uses a different evaluation engine than the actual runtime in Architect. The Test tool is more forgiving with types, while Architect is strict.

Potential Causes

  1. Array vs Object mismatch: If the JSONPath returns a list (even a list with one item), Architect can’t map that to a string variable without a specific index.
  2. Null values: If the path fails to resolve for one specific record, the whole action fails with a 400.

Recommended Fixes

  1. Explicit Indexing: Ensure the JSONPath isn’t returning an array. Use [0] at the end of the path.
  2. Validation Check: Use the draft test endpoint to see the raw response before it hits the contract.
# Check the raw response structure via API
curl -X POST "https://api.mypurecloud.com/api/v2/integrations/actions/{actionId}/draft/test" \
-H "Authorization: Bearer {token}" \
-d '{"input": {"yourParam": "testValue"}}'

FWIW, a common workaround we’ve used is to simplify the output contract to a single string and do the heavy lifting of parsing inside the 3rd party service if possible. YMMV depending on the API you’re hitting.

Are you using any wildcards like .. in your JSONPath? That’s usually where things break in production.

3

I apologize if this is a beginner question, but the point in the earlier reply is correct.

For our SOC2 audit, we found that strict type checking is necessary. It’s worth a shot to check if the output contract is set to “string” when the JSONPath actually returns an array. This mismatch often causes the runtime failure.

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