curl --request GET \
  --url https://drb.coinbase.com/api/v2/private/get_subaccounts_details \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "private/get_subaccounts_details",
  "params": {
    "currency": "BTC"
  }
}
'

import requests

url = "https://drb.coinbase.com/api/v2/private/get_subaccounts_details"

payload = {
    "id": 1,
    "jsonrpc": "2.0",
    "method": "private/get_subaccounts_details",
    "params": { "currency": "BTC" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'GET',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: 1,
    jsonrpc: '2.0',
    method: 'private/get_subaccounts_details',
    params: {currency: 'BTC'}
  })
};

fetch('https://drb.coinbase.com/api/v2/private/get_subaccounts_details', 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://drb.coinbase.com/api/v2/private/get_subaccounts_details",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_POSTFIELDS => json_encode([
    'id' => 1,
    'jsonrpc' => '2.0',
    'method' => 'private/get_subaccounts_details',
    'params' => [
        'currency' => 'BTC'
    ]
  ]),
  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://drb.coinbase.com/api/v2/private/get_subaccounts_details"

	payload := strings.NewReader("{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"private/get_subaccounts_details\",\n  \"params\": {\n    \"currency\": \"BTC\"\n  }\n}")

	req, _ := http.NewRequest("GET", 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.get("https://drb.coinbase.com/api/v2/private/get_subaccounts_details")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"private/get_subaccounts_details\",\n  \"params\": {\n    \"currency\": \"BTC\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://drb.coinbase.com/api/v2/private/get_subaccounts_details")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": 1,\n  \"jsonrpc\": \"2.0\",\n  \"method\": \"private/get_subaccounts_details\",\n  \"params\": {\n    \"currency\": \"BTC\"\n  }\n}"

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

{
  "jsonrpc": "2.0",
  "result": [
    {
      "positions": [
        {
          "average_price": 49571.3,
          "delta": 0.004152776,
          "direction": "buy",
          "estimated_liquidation_price": null,
          "floating_profit_loss": -0.00003451,
          "index_price": 47897.12,
          "initial_margin": 0.000122508,
          "instrument_name": "BTC-PERPETUAL",
          "kind": "future",
          "leverage": 34,
          "maintenance_margin": 0.000089286,
          "mark_price": 48160.55,
          "open_orders_margin": 0,
          "realized_funding": -8.8e-7,
          "realized_profit_loss": -8.79e-7,
          "settlement_price": 48150.36,
          "size": 200,
          "size_currency": 0.004152776,
          "total_profit_loss": -0.000118183
        }
      ],
      "uid": 3
    },
    {
      "positions": [
        {
          "average_price": 47182.76,
          "delta": -0.001308984,
          "direction": "sell",
          "estimated_liquidation_price": null,
          "floating_profit_loss": 0.000037333,
          "index_price": 47897.12,
          "initial_margin": 0.000038615,
          "instrument_name": "BTC-3SEP21",
          "kind": "future",
          "leverage": 34,
          "maintenance_margin": 0.000028143,
          "mark_price": 45837.07,
          "open_orders_margin": 0,
          "realized_profit_loss": 0,
          "settlement_price": 47886.98,
          "size": -60,
          "size_currency": -0.001308984,
          "total_profit_loss": 0.000037333
        }
      ],
      "uid": 10
    }
  ]
}

{
  "error": 123,
  "jsonrpc": "2.0",
  "message": "<string>",
  "id": 123
}