curl --request POST \
  --url https://sandbox-api.polygon.technology/v0.10/external-accounts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "owner": {
    "customerId": "<string>",
    "kind": "customer"
  },
  "label": "<string>",
  "metadata": {}
}
'

import requests

url = "https://sandbox-api.polygon.technology/v0.10/external-accounts"

payload = {
    "owner": {
        "customerId": "<string>",
        "kind": "customer"
    },
    "label": "<string>",
    "metadata": {}
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    owner: {customerId: '<string>', kind: 'customer'},
    label: '<string>',
    metadata: {}
  })
};

fetch('https://sandbox-api.polygon.technology/v0.10/external-accounts', 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://sandbox-api.polygon.technology/v0.10/external-accounts",
  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([
    'owner' => [
        'customerId' => '<string>',
        'kind' => 'customer'
    ],
    'label' => '<string>',
    'metadata' => [
        
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://sandbox-api.polygon.technology/v0.10/external-accounts"

	payload := strings.NewReader("{\n  \"owner\": {\n    \"customerId\": \"<string>\",\n    \"kind\": \"customer\"\n  },\n  \"label\": \"<string>\",\n  \"metadata\": {}\n}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	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://sandbox-api.polygon.technology/v0.10/external-accounts")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"owner\": {\n    \"customerId\": \"<string>\",\n    \"kind\": \"customer\"\n  },\n  \"label\": \"<string>\",\n  \"metadata\": {}\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox-api.polygon.technology/v0.10/external-accounts")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"owner\": {\n    \"customerId\": \"<string>\",\n    \"kind\": \"customer\"\n  },\n  \"label\": \"<string>\",\n  \"metadata\": {}\n}"

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

{
  "bankCanada": {
    "accountNumberLast4": "<string>",
    "institutionNumber": "<string>",
    "transitNumber": "<string>",
    "bankName": "<string>"
  },
  "bankIban": {
    "BIC": "<string>",
    "countryCode": "<string>",
    "ibanLast4": "<string>",
    "bankAddress": "<string>"
  },
  "bankUs": {
    "accountNumberLast4": "<string>",
    "routingNumber": "<string>",
    "bankName": "<string>"
  },
  "card": {
    "cardNumberLast4": "<string>",
    "expiryMonth": 123,
    "expiryYear": 123
  },
  "createdAt": "2023-11-07T05:31:56Z",
  "id": "<string>",
  "label": "<string>",
  "metadata": {},
  "object": "externalAccount",
  "owner": {
    "customerId": "<string>",
    "kind": "customer"
  },
  "rejectionReason": "<string>",
  "resolvedTransactions": [
    "<string>"
  ],
  "updatedAt": "2023-11-07T05:31:56Z",
  "walletExternal": {
    "blockchainAddress": "<string>",
    "otherCustodian": "<string>"
  }
}