curl --request PUT \
  --url https://api.upwell.com/api/rest/customers/{id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "customerRulesInput": {},
  "id": "<string>",
  "input": {}
}
'

import requests

url = "https://api.upwell.com/api/rest/customers/{id}"

payload = {
    "customerRulesInput": {},
    "id": "<string>",
    "input": {}
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({customerRulesInput: {}, id: '<string>', input: {}})
};

fetch('https://api.upwell.com/api/rest/customers/{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://api.upwell.com/api/rest/customers/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'customerRulesInput' => [
        
    ],
    'id' => '<string>',
    'input' => [
        
    ]
  ]),
  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;
}

package main

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

func main() {

	url := "https://api.upwell.com/api/rest/customers/{id}"

	payload := strings.NewReader("{\n  \"customerRulesInput\": {},\n  \"id\": \"<string>\",\n  \"input\": {}\n}")

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

	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.put("https://api.upwell.com/api/rest/customers/{id}")
  .header("Content-Type", "application/json")
  .body("{\n  \"customerRulesInput\": {},\n  \"id\": \"<string>\",\n  \"input\": {}\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.upwell.com/api/rest/customers/{id}")

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

request = Net::HTTP::Put.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"customerRulesInput\": {},\n  \"id\": \"<string>\",\n  \"input\": {}\n}"

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

{
  "updateCustomer": {
    "addresses": [
      {
        "city": "<string>",
        "id": "<string>",
        "stateOrProvince": "<string>",
        "streetLine1": "<string>",
        "streetLine2": "<string>",
        "zipOrPostalCode": "<string>"
      }
    ],
    "balance": "<unknown>",
    "billToCustomerId": "<string>",
    "ccEmailAddresses": [
      "<string>"
    ],
    "createdAt": "2023-11-07T05:31:56Z",
    "customerRule": {
      "dueOption": 123,
      "id": "<string>"
    },
    "emailAddress": "<string>",
    "id": "<string>",
    "metadata": "<unknown>",
    "name": "<string>",
    "overdueBalance": "<unknown>",
    "overdueInvoiceCount": 123,
    "sourceSystem": "<string>",
    "sourceSystemId": "<string>",
    "updatedAt": "2023-11-07T05:31:56Z"
  },
  "updateCustomerRules": {
    "affectedRows": 123
  }
}