curl --request POST \
  --url https://api.valyx.com/billing/contract \
  --header 'Content-Type: application/json' \
  --header 'X-Valyx-Signature: <x-valyx-signature>' \
  --data '
{
  "customerId": "cust_45678",
  "contractNumber": "CONTRACT-2025-001",
  "contractTitle": "Premium Subscription Plan",
  "contractPeriod": {
    "unit": "MONTH",
    "value": 12
  },
  "billingFrequency": {
    "unit": "MONTH",
    "value": 1
  },
  "isPreusage": false
}
'

import requests

url = "https://api.valyx.com/billing/contract"

payload = {
    "customerId": "cust_45678",
    "contractNumber": "CONTRACT-2025-001",
    "contractTitle": "Premium Subscription Plan",
    "contractPeriod": {
        "unit": "MONTH",
        "value": 12
    },
    "billingFrequency": {
        "unit": "MONTH",
        "value": 1
    },
    "isPreusage": False
}
headers = {
    "X-Valyx-Signature": "<x-valyx-signature>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-Valyx-Signature': '<x-valyx-signature>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    customerId: 'cust_45678',
    contractNumber: 'CONTRACT-2025-001',
    contractTitle: 'Premium Subscription Plan',
    contractPeriod: {unit: 'MONTH', value: 12},
    billingFrequency: {unit: 'MONTH', value: 1},
    isPreusage: false
  })
};

fetch('https://api.valyx.com/billing/contract', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

const options = {
  method: 'POST',
  headers: {'X-Valyx-Signature': '<x-valyx-signature>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    customerId: 'cust_45678',
    contractNumber: 'CONTRACT-2025-001',
    contractTitle: 'Premium Subscription Plan',
    contractPeriod: {unit: 'MONTH', value: 12},
    billingFrequency: {unit: 'MONTH', value: 1},
    isPreusage: false
  })
};

fetch('https://api.valyx.com/billing/contract', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.valyx.com/billing/contract"

	payload := strings.NewReader("{\n  \"customerId\": \"cust_45678\",\n  \"contractNumber\": \"CONTRACT-2025-001\",\n  \"contractTitle\": \"Premium Subscription Plan\",\n  \"contractPeriod\": {\n    \"unit\": \"MONTH\",\n    \"value\": 12\n  },\n  \"billingFrequency\": {\n    \"unit\": \"MONTH\",\n    \"value\": 1\n  },\n  \"isPreusage\": false\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-Valyx-Signature", "<x-valyx-signature>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.valyx.com/billing/contract")
  .header("X-Valyx-Signature", "<x-valyx-signature>")
  .header("Content-Type", "application/json")
  .body("{\n  \"customerId\": \"cust_45678\",\n  \"contractNumber\": \"CONTRACT-2025-001\",\n  \"contractTitle\": \"Premium Subscription Plan\",\n  \"contractPeriod\": {\n    \"unit\": \"MONTH\",\n    \"value\": 12\n  },\n  \"billingFrequency\": {\n    \"unit\": \"MONTH\",\n    \"value\": 1\n  },\n  \"isPreusage\": false\n}")
  .asString();

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.valyx.com/billing/contract",
  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([
    'customerId' => 'cust_45678',
    'contractNumber' => 'CONTRACT-2025-001',
    'contractTitle' => 'Premium Subscription Plan',
    'contractPeriod' => [
        'unit' => 'MONTH',
        'value' => 12
    ],
    'billingFrequency' => [
        'unit' => 'MONTH',
        'value' => 1
    ],
    'isPreusage' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Valyx-Signature: <x-valyx-signature>"
  ],
]);

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

curl_close($curl);

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

require 'uri'
require 'net/http'

url = URI("https://api.valyx.com/billing/contract")

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

request = Net::HTTP::Post.new(url)
request["X-Valyx-Signature"] = '<x-valyx-signature>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"customerId\": \"cust_45678\",\n  \"contractNumber\": \"CONTRACT-2025-001\",\n  \"contractTitle\": \"Premium Subscription Plan\",\n  \"contractPeriod\": {\n    \"unit\": \"MONTH\",\n    \"value\": 12\n  },\n  \"billingFrequency\": {\n    \"unit\": \"MONTH\",\n    \"value\": 1\n  },\n  \"isPreusage\": false\n}"

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

import Foundation

let parameters = [
  "customerId": "cust_45678",
  "contractNumber": "CONTRACT-2025-001",
  "contractTitle": "Premium Subscription Plan",
  "contractPeriod": [
    "unit": "MONTH",
    "value": 12
  ],
  "billingFrequency": [
    "unit": "MONTH",
    "value": 1
  ],
  "isPreusage": false
] as [String : Any?]

let postData = try JSONSerialization.data(withJSONObject: parameters, options: [])

let url = URL(string: "https://api.valyx.com/billing/contract")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.timeoutInterval = 10
request.allHTTPHeaderFields = [
  "X-Valyx-Signature": "<x-valyx-signature>",
  "Content-Type": "application/json"
]
request.httpBody = postData

let (data, _) = try await URLSession.shared.data(for: request)
print(String(decoding: data, as: UTF8.self))

val client = OkHttpClient()

val mediaType = MediaType.parse("application/json")
val body = RequestBody.create(mediaType, "{\n  \"customerId\": \"cust_45678\",\n  \"contractNumber\": \"CONTRACT-2025-001\",\n  \"contractTitle\": \"Premium Subscription Plan\",\n  \"contractPeriod\": {\n    \"unit\": \"MONTH\",\n    \"value\": 12\n  },\n  \"billingFrequency\": {\n    \"unit\": \"MONTH\",\n    \"value\": 1\n  },\n  \"isPreusage\": false\n}")
val request = Request.Builder()
  .url("https://api.valyx.com/billing/contract")
  .post(body)
  .addHeader("X-Valyx-Signature", "<x-valyx-signature>")
  .addHeader("Content-Type", "application/json")
  .build()

val response = client.newCall(request).execute()

using RestSharp;


var options = new RestClientOptions("https://api.valyx.com/billing/contract");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("X-Valyx-Signature", "<x-valyx-signature>");
request.AddJsonBody("{\n  \"customerId\": \"cust_45678\",\n  \"contractNumber\": \"CONTRACT-2025-001\",\n  \"contractTitle\": \"Premium Subscription Plan\",\n  \"contractPeriod\": {\n    \"unit\": \"MONTH\",\n    \"value\": 12\n  },\n  \"billingFrequency\": {\n    \"unit\": \"MONTH\",\n    \"value\": 1\n  },\n  \"isPreusage\": false\n}", false);
var response = await client.PostAsync(request);

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

false

{
  "error": "<string>",
  "message": "<string>",
  "data": {
    "totalDocs": 123,
    "docs": [
      {
        "id": {},
        "customerId": {},
        "contractNumber": {},
        "contractTitle": {},
        "contractPeriod": {},
        "renewalPeriod": {},
        "noteContract": {},
        "billingFrequency": {},
        "usageBillingCycle": {},
        "estimateCycle": {},
        "billingTime": {},
        "startDate": {},
        "virtualStartDate": {},
        "endDate": {},
        "nextBillingDate": {},
        "billingDiscounts": {},
        "isPreusage": {},
        "billingReportLimit": {},
        "contractLimit": {},
        "creditTermId": {},
        "poNumber": {},
        "placeOfSupply": {},
        "billingAddress": {},
        "shippingAddress": {},
        "totalInvoicedAmount": {},
        "noteInvoice": {},
        "terms": {},
        "advanceConfig": {},
        "invoiceSplitConfig": {},
        "gstin": {},
        "companyGstin": {},
        "currency": {},
        "currencyId": {},
        "companyId": {},
        "createdBy": {},
        "updatedBy": {},
        "status": {},
        "autoRenew": {}
      }
    ],
    "hasNext": true,
    "hasPrev": true,
    "pageNumber": 123,
    "pageSize": 123,
    "totalPages": 123,
    "prevPageNumber": 123,
    "nextPageNumber": 123
  }
}