How to get request by using variable in the body of HTTP request POST?

Hi everyone
I am trying to call an API using HTTP request by using Json
there are 3 variables in the body which are : idm, ids and idl

“{ ““productId””: “+idm+”, ““entityId””: “+ids+”, ““code””: “””+idl+""","" heritages"": }"

When I do the POST request, the call use always the last value of all theses 3 variables.
variable idm can be 1, 2 ,3
variable ids can be 1, 2 ,3
variable idl can be 1, 2 ,3

the result that I’m looking for is that robot will call 3 times with 3 different requests
{ productId: 1, entityId: 1, code: “1”,heritages: }
{ productId: 2, entityId: 2, code: “2”,heritages: }
{ productId: 3, entityId: 3, code: “3”,heritages: }

However, I got only one request of the last value which is
{ productId: 3, entityId: 3, code: “3”,heritages: }
and the robot continue to post the same request.

Thanks for the help,

Hello @zeee!

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Hello Zee,
Check out this very fast simple VB.NET that create JSON in 1 line:
startUiPathFromSalesforce/CreateJSON.txt at master · cristinegulescu/startUiPathFromSalesforce · GitHub
And the movie for demo: