curl --request PATCH \
  --url https://api-sandbox.circle.com/v1/addressBook/recipients/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "metadata": {
    "nickname": "sample nickname",
    "email": "satoshi@circle.com",
    "bns": "sample.circle"
  }
}
'

import requests

url = "https://api-sandbox.circle.com/v1/addressBook/recipients/{id}"

payload = { "metadata": {
        "nickname": "sample nickname",
        "email": "satoshi@circle.com",
        "bns": "sample.circle"
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    metadata: {nickname: 'sample nickname', email: 'satoshi@circle.com', bns: 'sample.circle'}
  })
};

fetch('https://api-sandbox.circle.com/v1/addressBook/recipients/{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-sandbox.circle.com/v1/addressBook/recipients/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'metadata' => [
        'nickname' => 'sample nickname',
        'email' => 'satoshi@circle.com',
        'bns' => 'sample.circle'
    ]
  ]),
  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.circle.com/v1/addressBook/recipients/{id}"

	payload := strings.NewReader("{\n  \"metadata\": {\n    \"nickname\": \"sample nickname\",\n    \"email\": \"satoshi@circle.com\",\n    \"bns\": \"sample.circle\"\n  }\n}")

	req, _ := http.NewRequest("PATCH", 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.patch("https://api-sandbox.circle.com/v1/addressBook/recipients/{id}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"metadata\": {\n    \"nickname\": \"sample nickname\",\n    \"email\": \"satoshi@circle.com\",\n    \"bns\": \"sample.circle\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.circle.com/v1/addressBook/recipients/{id}")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"metadata\": {\n    \"nickname\": \"sample nickname\",\n    \"email\": \"satoshi@circle.com\",\n    \"bns\": \"sample.circle\"\n  }\n}"

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

{
  "data": {
    "id": "b8627ae8-732b-4d25-b947-1df8f4007a29",
    "accountId": 1000662322,
    "clientEntityId": "a3f1b2c4-d5e6-7890-abcd-ef1234567890",
    "chain": "ETH",
    "address": "0x8381470ED67C3802402dbbFa0058E8871F017A6F",
    "addressTag": "123456789",
    "metadata": {
      "nickname": "sample nickname",
      "email": "satoshi@circle.com",
      "bns": "sample.circle"
    },
    "status": "pending",
    "riskEvaluation": {
      "decision": "approved",
      "reason": "3000"
    },
    "createDate": "2020-04-10T02:13:30.000Z",
    "updateDate": "2020-04-10T02:13:30.000Z"
  }
}

{
  "code": 2,
  "message": "API parameter invalid."
}

{
  "code": 4,
  "message": "Unauthorized."
}

{
  "code": 404,
  "message": "Not found."
}

{
  "code": -1,
  "message": "Something went wrong. errId: 1f0b0c455e40f753f07b4f0ae6abd4b4"
}