How To Create A JSON Request With More Than One Array Element?

Hi,

I am using the postURL functionality. JSON Request body contains more than one array element like shown below,

Original JSON Request Body Format To Be Used:

{

  "Name": "Hello World",
  "Roles": [
    {
      "Profile": "asdf",
    }
  ],
  "Description": "sent"
}

This is my code used for creating above JSON request using "map()" functionality,

myMapData = map();

myMapData.put("Name", "Hello World");

myMapData.put("Description", "sent");

// I used the following code for creating "Roles" array element which i referenced from a blog listed below

// Code For "Roles"

start_list = List();

start_list = {"node1"};

end_list = List();

for each r in start_list

{

myMapTemplateRoles = map();

myMapTemplateRoles.put("Profile","asdf");

stringMap = myMapTemplateRoles;

end_list.add(stringMap.toString());

}

// End Of Code For Roles

myMapData.put("Roles", end_list);

// End Of Code

JSON Request Body Format Obtained using above code:

{

  "Name": "Hello World",
  "Roles":

   "[
    {
      "Profile": "asdf",
    }

    ]"
  ,
  "Description": "sent" 
}

The above "obtained JSON Format" is displayed as Invalid when tested with

websie below,

http://jsonlint.com/

When i pass the above "obtained JSON Format" through postUrl,i am getting

an error "Bad JSON Request". I think extra quotation marks(hi lighted)before and

after square brackets of "Roles" in JSON Request is creating this error.

I have followed the same steps for creating a map variable then why

i am getting an invalid JSON Format string while creating through map().

Please let me know if there is any problem in my code.

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