curl --request POST \
  --url https://www.zohoapis.com/writer/api/v1/documents/a1b2c3d4e5f6g7h8i9/merge/sign \
  --header 'Authorization: Zoho-oauthtoken d92d4xxxxxxxxxxxxx15f52' \
  --header 'content-type: multipart/form-data' \
  -F 'service_name=zohosign' \
  -F 'filename=Invoice_2026_001' \
  -F 'merge_data={
  "data": [
    {
      "name": "John Doe",
      "amount": "1500.00"
    }
  ]
}' \
  -F 'merge_data_csv_content=@file_path' \
  -F 'merge_data_json_content=@file_path' \
  -F 'merge_data_csv_url=https://zylker.com/merge-data.csv' \
  -F 'merge_data_json_url=https://zylker.com/merge-data.json' \
  -F 'record_id=4876000000123456' \
  -F 'signer_data=[
  {
    "recipient_1": "john.doe@zylker.com",
    "recipient_name": "John Doe",
    "action_type": "sign"
  }
]' \
  -F 'sign_in_order=true' \
  -F 'message=Please review and sign the attached document.' \
  -F 'set_expire=30' \
  -F 'reminder_period=3' \
  -F 'common_attachments=@file_path' \
  -F 'unique_attachments=[
  {
    "type": "field",
    "field_id": "invoice_url"
  }
]' \
  -F 'sign_org_id=123456789' \
  -F 'sign_request_type_id=987654321' \
  -F 'allowed_cloud_provider_ids=[
  10,
  25
]' \
  -F 'test_mode=true'

    headersMap = Map();
    headersMap.put("Accept", "application/json");

    list_of_text=List();
    list_of_text.add({"paramName":"service_name","content":"zohosign","stringPart":"true"});
    list_of_text.add({"paramName":"filename","content":"Invoice_2026_001","stringPart":"true"});
    list_of_text.add({"paramName":"merge_data","content":"[object Object]","stringPart":"true"});
    file=invokeurl
    [
      url : "public fileURL link"
      type : GET
    ];
    list_of_text.add({"paramName":"merge_data_csv_content","content":file,"stringPart":"false"});
    file_2=invokeurl
    [
      url : "public fileURL link"
      type : GET
    ];
    list_of_text.add({"paramName":"merge_data_json_content","content":file_2,"stringPart":"false"});
    list_of_text.add({"paramName":"merge_data_csv_url","content":"https://zylker.com/merge-data.csv","stringPart":"true"});
    list_of_text.add({"paramName":"merge_data_json_url","content":"https://zylker.com/merge-data.json","stringPart":"true"});
    list_of_text.add({"paramName":"record_id","content":"4876000000123456","stringPart":"true"});
    list_of_text.add({"paramName":"signer_data","content":"[object Object]","stringPart":"true"});
    list_of_text.add({"paramName":"sign_in_order","content":"true","stringPart":"true"});
    list_of_text.add({"paramName":"message","content":"Please review and sign the attached document.","stringPart":"true"});
    list_of_text.add({"paramName":"set_expire","content":"30","stringPart":"true"});
    list_of_text.add({"paramName":"reminder_period","content":"3","stringPart":"true"});
    file_3=invokeurl
    [
      url : "public fileURL link"
      type : GET
    ];
    list_of_text.add({"paramName":"common_attachments","content":file_3,"stringPart":"false"});
    list_of_text.add({"paramName":"unique_attachments","content":"[object Object]","stringPart":"true"});
    list_of_text.add({"paramName":"sign_org_id","content":"123456789","stringPart":"true"});
    list_of_text.add({"paramName":"sign_request_type_id","content":"987654321","stringPart":"true"});
    list_of_text.add({"paramName":"allowed_cloud_provider_ids","content":"10,25","stringPart":"true"});
    list_of_text.add({"paramName":"test_mode","content":"true","stringPart":"true"});

    response = invokeUrl
    [
        url: "https://www.zohoapis.com/writer/api/v1/documents/{document_id}/merge/sign"
        type: POST
        headers: headersMap
        files: list_of_text
        connection: connection_name
    ]

    info response;