curl --request GET \
  --url https://openapi.pluuug.com/v1/contract/{contract_id} \
  --header 'X-API-Key: <api-key>' \
  --header 'X-Signature: <api-key>'

import requests

url = "https://openapi.pluuug.com/v1/contract/{contract_id}"

headers = {
    "X-API-Key": "<api-key>",
    "X-Signature": "<api-key>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>', 'X-Signature': '<api-key>'}};

fetch('https://openapi.pluuug.com/v1/contract/{contract_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://openapi.pluuug.com/v1/contract/{contract_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-Key: <api-key>",
    "X-Signature: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://openapi.pluuug.com/v1/contract/{contract_id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("X-Signature", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://openapi.pluuug.com/v1/contract/{contract_id}")
  .header("X-API-Key", "<api-key>")
  .header("X-Signature", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://openapi.pluuug.com/v1/contract/{contract_id}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'
request["X-Signature"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "id": 123,
  "title": "<string>",
  "amount": 1,
  "created": "2023-11-07T05:31:56Z",
  "contractNumber": "<string>",
  "startDate": "2023-12-25",
  "endDate": "2023-12-25",
  "vatType": "E",
  "settlementFrequency": 1,
  "settlementCycle": "M",
  "settlementDay": 1,
  "inquiry": {
    "id": 123,
    "uniqueId": "<string>",
    "status": {
      "id": 123,
      "title": "<string>",
      "folder": {
        "id": 123,
        "name": "<string>"
      }
    },
    "name": "<string>",
    "estimate": "<string>",
    "inquiryDate": "2023-12-25"
  },
  "client": {
    "id": 123,
    "status": {
      "id": 123,
      "title": "<string>"
    },
    "companyName": "<string>",
    "inCharge": "<string>",
    "position": "<string>",
    "contact": "<string>",
    "email": "jsmith@example.com"
  },
  "categorySet": [
    {
      "id": 123,
      "title": "<string>"
    }
  ],
  "fieldSet": [
    {
      "field": {
        "id": 123,
        "name": "<string>",
        "optionSet": [
          {
            "id": "<string>",
            "title": "<string>"
          }
        ],
        "memberSet": [
          {
            "id": 123,
            "nickname": "<string>",
            "email": "<string>",
            "isActive": true,
            "grade": {
              "id": 123,
              "title": "<string>"
            }
          }
        ]
      },
      "value": "<string>"
    }
  ]
}