Intelligent Decisioning: Calling a Data Grid Variable through JSON

[u41146773]

Hi,

I'm trying to call the SAS API via Postman after publishing a simple decision flow and I wish to test the how a data grid variable is communicated upon sending a request.

1. I created input and output variables with their corresponding data type, on which SubProduct variable is a data grid.

2. Then I created a simple ruleset to count the records inside the data grid. If there is more than 1 record, then Decision = "No", else Decision = "Yes":

3. I have published and validated the simple flow. And got the expected outputs:

      a. Data Grid value from output variable -> DECISION = "No":          

                    

      b. Data Grid value from output variable -> DECISION = "Yes:

          

4. I have now copied the published URL to postman and set up the JSON request body for Item 3a.

{
   "inputs":[
      {
         "name":"ID_",
         "value":"A1"
      },
      {
         "name":"PRODUCTID_",
         "value":"car1"
      },
      {
         "name":"SUBPRODUCT_",
         "value": [
            {
                "metadata": [
                    {
                        "SP_ID": "string"
                    },
                    {
                        "COLOR": "string"
                    },
                    {
                        "VALIDITYDATE": "string"
                    }
                ]
            },
            {
                "data": [
                    [
                        "10001",
                        "BLUE",
                        "09272022"
                    ],
                    [
                        "10002",
                        "PINK",
                        "09262022"
                    ]
                ]
            }
        ]
      }
   ]
}

5. Upon sending the request, this is the response/error that I got.

{
    "errorCode": 0,
    "message": "Cannot execute the step \"execute_skel\" of the module \"sub_flow_dg1_0\".",
    "details": [
        "traceId: 3aaf89e6bbb63491",
        "path: /microanalyticScore/modules/sub_flow_dg1_0/steps/execute_skel",
        "Cannot assign the value [{metadata=[{SP_ID=string}, {COLOR=string}, {VALIDITYDATE=string}]}, {data=[[10001, BLUE, 09272022], [10002, PINK, 09262022]]}] to the parameter \"\"SubProduct_\"\" of type string."
    ],
    "links": [],
    "version": 2,
    "httpStatusCode": 400
}

I am confused on why I did not get the expected output as I did from Item 3 once I did the testing in runtime environment. Any thoughts on why this is happening? Thanks in advance!

[alexal · Accepted solution]

Send the same payload to /microanalyticScore/modules/sub_flow_dg1_0/steps/execute, and it will work just fine.

[u41146773]

Thanks @alexal, the URL worked. Great help!

I am wondering if this is the default template expected for the URL?

I only got the one with "_skel" from the path given from the published code of the decision flow (Scoring tab -> Publishing Validation -> Code):

I thought I had to depend on the URL here, from /microanalyticScore/..., but apparently _skel should be removed as well when testing via Postman.

[alexal]

Yes, unless you want to execute a specific step https://developer.sas.com/apis/rest/DecisionManagement/#operations-4