curl --request POST \
  --url https://api.sandbox.lead.bank/v1/account_number/{account_number_id}/assign \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "client_customer_id": "<your_customer_id>",
  "entity_id": "entity_xyz123"
}
'

import requests

url = "https://api.sandbox.lead.bank/v1/account_number/{account_number_id}/assign"

payload = {
    "client_customer_id": "<your_customer_id>",
    "entity_id": "entity_xyz123"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({client_customer_id: '<your_customer_id>', entity_id: 'entity_xyz123'})
};

fetch('https://api.sandbox.lead.bank/v1/account_number/{account_number_id}/assign', 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.sandbox.lead.bank/v1/account_number/{account_number_id}/assign",
  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([
    'client_customer_id' => '<your_customer_id>',
    'entity_id' => 'entity_xyz123'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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.sandbox.lead.bank/v1/account_number/{account_number_id}/assign"

	payload := strings.NewReader("{\n  \"client_customer_id\": \"<your_customer_id>\",\n  \"entity_id\": \"entity_xyz123\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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.sandbox.lead.bank/v1/account_number/{account_number_id}/assign")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"client_customer_id\": \"<your_customer_id>\",\n  \"entity_id\": \"entity_xyz123\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sandbox.lead.bank/v1/account_number/{account_number_id}/assign")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"client_customer_id\": \"<your_customer_id>\",\n  \"entity_id\": \"entity_xyz123\"\n}"

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

{
  "id": "account_number_xyz",
  "account_number": 123412341234,
  "routing_number": 123456789,
  "account_id": "account_xyz123",
  "client_customer_id": "<your_customer_id>",
  "entity_id": "entity_xyz123",
  "status": "active",
  "ach_controls": {
    "originator_id": "originator_xyz123",
    "incoming": {
      "accept_credit": true,
      "accept_debit": true,
      "counterparty_filter": "accept_all",
      "counterparty_company_ids_allowlist": [
        1234567890
      ]
    },
    "outgoing": {
      "counterparty_filter": "accept_all",
      "counterparty_account_numbers_allowlist": [
        {
          "type": "us_domestic",
          "account_number": 123412341234,
          "routing_number": 123412341234
        }
      ]
    }
  },
  "wire_controls": {
    "incoming": {
      "counterparty_filter": "accept_all",
      "counterparty_account_numbers_allowlist": [
        {
          "type": "us_domestic",
          "account_number": 123412341234,
          "routing_number": 123412341234
        }
      ]
    },
    "outgoing": {
      "counterparty_filter": "accept_all",
      "counterparty_account_numbers_allowlist": [
        {
          "type": "us_domestic",
          "account_number": 123412341234,
          "routing_number": 123412341234
        }
      ]
    },
    "outgoing_international": {
      "counterparty_filter": "accept_all",
      "counterparty_international_account_numbers_allowlist": [
        {
          "business_identifier_code": "CHASUS33",
          "account_identifier": {
            "value": "GB29NWBK60161331926819"
          }
        }
      ]
    }
  },
  "internal_transfer_controls": {
    "incoming": {
      "counterparty_filter": "accept_all",
      "counterparty_account_number_ids_allowlist": [
        "account_number_xyz123"
      ]
    },
    "outgoing": {
      "counterparty_filter": "accept_all",
      "counterparty_account_number_ids_allowlist": [
        "account_number_xyz123"
      ]
    }
  },
  "instant_payment_controls": {
    "incoming": {
      "counterparty_filter": "accept_all",
      "counterparty_account_numbers_allowlist": [
        {
          "account_number": 123412341234,
          "routing_number": 123412341234
        }
      ]
    },
    "outgoing": {
      "counterparty_filter": "accept_all",
      "counterparty_account_numbers_allowlist": [
        {
          "account_number": 123412341234,
          "routing_number": 123412341234
        }
      ]
    }
  },
  "metadata": {},
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}

{
  "code": "operation_not_allowed",
  "title": "This operation cannot be done on this object.",
  "detail": "You cannot assign an already assigned client_customer_id, current value: <client_customer_id>.",
  "status": "400"
}