using RestSharp;


var options = new RestClientOptions("http://localhost:56350/api/v1/Agents/ErpSync/SaveDefaultValueInfo");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddJsonBody("{\n  \"ErpSyncDefaultValue\": {\n    \"ErpFieldId\": 123,\n    \"DefaultValue\": \"<string>\",\n    \"HasFirstSyncDefaultValue\": true,\n    \"FirstSyncDefaultValue\": \"<string>\",\n    \"PromptUser\": true,\n    \"Mandatory\": true,\n    \"ErpFieldKey\": \"<string>\",\n    \"ListName\": \"<string>\",\n    \"TableRight\": {\n      \"Mask\": \"<string>\",\n      \"Reason\": \"<string>\"\n    },\n    \"FieldProperties\": {}\n  }\n}", false);
var response = await client.PostAsync(request);

Console.WriteLine("{0}", response.Content);

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    ErpSyncDefaultValue: {
      ErpFieldId: 123,
      DefaultValue: '<string>',
      HasFirstSyncDefaultValue: true,
      FirstSyncDefaultValue: '<string>',
      PromptUser: true,
      Mandatory: true,
      ErpFieldKey: '<string>',
      ListName: '<string>',
      TableRight: {Mask: '<string>', Reason: '<string>'},
      FieldProperties: {}
    }
  })
};

fetch('http://localhost:56350/api/v1/Agents/ErpSync/SaveDefaultValueInfo', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "56350",
  CURLOPT_URL => "http://localhost:56350/api/v1/Agents/ErpSync/SaveDefaultValueInfo",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'ErpSyncDefaultValue' => [
        'ErpFieldId' => 123,
        'DefaultValue' => '<string>',
        'HasFirstSyncDefaultValue' => true,
        'FirstSyncDefaultValue' => '<string>',
        'PromptUser' => true,
        'Mandatory' => true,
        'ErpFieldKey' => '<string>',
        'ListName' => '<string>',
        'TableRight' => [
                'Mask' => '<string>',
                'Reason' => '<string>'
        ],
        'FieldProperties' => [
                
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

import requests

url = "http://localhost:56350/api/v1/Agents/ErpSync/SaveDefaultValueInfo"

payload = { "ErpSyncDefaultValue": {
        "ErpFieldId": 123,
        "DefaultValue": "<string>",
        "HasFirstSyncDefaultValue": True,
        "FirstSyncDefaultValue": "<string>",
        "PromptUser": True,
        "Mandatory": True,
        "ErpFieldKey": "<string>",
        "ListName": "<string>",
        "TableRight": {
            "Mask": "<string>",
            "Reason": "<string>"
        },
        "FieldProperties": {}
    } }
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    ErpSyncDefaultValue: {
      ErpFieldId: 123,
      DefaultValue: '<string>',
      HasFirstSyncDefaultValue: true,
      FirstSyncDefaultValue: '<string>',
      PromptUser: true,
      Mandatory: true,
      ErpFieldKey: '<string>',
      ListName: '<string>',
      TableRight: {Mask: '<string>', Reason: '<string>'},
      FieldProperties: {}
    }
  })
};

fetch('http://localhost:56350/api/v1/Agents/ErpSync/SaveDefaultValueInfo', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "ErpFieldId": 123,
  "DefaultValue": "<string>",
  "HasFirstSyncDefaultValue": true,
  "FirstSyncDefaultValue": "<string>",
  "PromptUser": true,
  "Mandatory": true,
  "ErpFieldKey": "<string>",
  "FieldType": "Checkbox",
  "ListName": "<string>",
  "Access": "Normal",
  "TableRight": {
    "Mask": "<string>",
    "Reason": "<string>"
  },
  "FieldProperties": {}
}