curl --request POST \
  --url https://www.zohoapis.com/workdrive/api/v1/category/{category_id}/relationships/files \
  --header 'Authorization: Zoho-oauthtoken d92d4xxxxxxxxxxxxx15f52' \
  --header 'content-type: application/vnd.api+json' \
  --data '{"data":{"attributes":{"resource_id":"ly9zm1d1ee3b833c1438a9232ad6ac77bc8f2"},"id":"ly9zm1d1ee3b833c1438a9232ad6ac77bc8f2","type":"files"}}'

header = Map();
header.put("Accept","application/vnd.api+json");
data=Map();
data_param1=Map();
att_param1=Map();
att_param1.put("resource_id","ly9zm1d1ee3b833c1438a9232ad6ac77bc8f2");
data_param1.put("attributes",att_param1);
data_param1.put("id","ly9zm1d1ee3b833c1438a9232ad6ac77bc8f2");
data_param1.put("type","files");
data.put("data",data_param1);
response = invokeurl
[
url : "https://www.zohoapis.com/workdrive/api/v1/category/{category_id}/relationships/files"
type : POST
parameters : data.toString()
headers : header
connection : "wdconnection"
];
info response;