How to set array data in javascript ?

[devalvelociter]

I am getting data from the backend as shown below:

The gstin number is depends on backend i.e it can be multiple or single or Null.

{
    "result": {
        "gstinList": [
            {
                "gstin": "123456789"
            },
            {
                "gstin": "987654321"
            }
        ]
    }
}

Now i want to extract gstin data and create a new request packet as shown below:

{
    "task": "gstinSearch",
    "essentials": [
        {
            "gstin": "123456789"
        },
        {
            "gstin": "abcdefghi"
        }
    ]
}

The gstin is dynamic. Now I want to create request packet and send to the other route. Can anyone help me how to do this part?

[#2]

You need first one extract variable policy, using this you will get the array. then one assign message policy to frame your request payload.

<ExtractVariables name="ExtractVariables-3">
   <Source>request</Source>
   <JSONPayload>
      <Variable name="essentials_value">
         <JSONPath>$.result.gstinList</JSONPath>
      </Variable>
   </JSONPayload>
</ExtractVariables>

Next is assign message

<AssignMessage name="set-payload-3">
  <Set>
    <Payload contentType="application/json">
      {
	
    	"task": "gstinSearch",
    	"essentials": "{essentials_value}"
      }
    </Payload>
  </Set>
</AssignMessage>

[devalvelociter]

Below is the proper data i am getting from the backend. From this packet I want to extract gstin.

{
    "result": {
        "gstinList": [
            {
                "gstin": "123456789",
                "status": "ACTIVE",
                "state": "KARNATAKA"
            },
            {
                "gstin": "987654321",
                "status": "ACTIVE",
                "state": "MAHARASHTRA"
            }
        ]
    }
}

Above I am getting data. So if I want to set the data shown as above then I have to use javascript but in javascript how to write proper code for this.

[#4 · Accepted solution]

ok, to remove the parameter just use the following javascript. Then you don't need the extract variable policy.

var json_body = JSON.parse(context.getVariable("request.content"));



var body1 = json_body.result.gstinList;

for(var x=0; x < body1.length; x++) 
{ 
	delete body1[x].status; 
	delete body1[x].state;
}


body1s = JSON.stringify(body1);

context.setVariable("essentials_value", body1s);