curl --request PATCH \
  --url https://mm-api.merchantspring.io/tags/channel \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "channelId": "A1234567890ABC",
  "merchantId": "XXXUS @ ATVPDKIKX0DER",
  "addTags": [
    "north-america"
  ],
  "removeTags": [
    "org://ebay"
  ]
}
'

import requests

url = "https://mm-api.merchantspring.io/tags/channel"

payload = {
    "channelId": "A1234567890ABC",
    "merchantId": "XXXUS @ ATVPDKIKX0DER",
    "addTags": ["north-america"],
    "removeTags": ["org://ebay"]
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    channelId: 'A1234567890ABC',
    merchantId: 'XXXUS @ ATVPDKIKX0DER',
    addTags: ['north-america'],
    removeTags: ['org://ebay']
  })
};

fetch('https://mm-api.merchantspring.io/tags/channel', 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://mm-api.merchantspring.io/tags/channel",
  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([
    'channelId' => 'A1234567890ABC',
    'merchantId' => 'XXXUS @ ATVPDKIKX0DER',
    'addTags' => [
        'north-america'
    ],
    'removeTags' => [
        'org://ebay'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-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://mm-api.merchantspring.io/tags/channel"

	payload := strings.NewReader("{\n  \"channelId\": \"A1234567890ABC\",\n  \"merchantId\": \"XXXUS @ ATVPDKIKX0DER\",\n  \"addTags\": [\n    \"north-america\"\n  ],\n  \"removeTags\": [\n    \"org://ebay\"\n  ]\n}")

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

	req.Header.Add("x-api-key", "<api-key>")
	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://mm-api.merchantspring.io/tags/channel")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"channelId\": \"A1234567890ABC\",\n  \"merchantId\": \"XXXUS @ ATVPDKIKX0DER\",\n  \"addTags\": [\n    \"north-america\"\n  ],\n  \"removeTags\": [\n    \"org://ebay\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://mm-api.merchantspring.io/tags/channel")

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

request = Net::HTTP::Patch.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"channelId\": \"A1234567890ABC\",\n  \"merchantId\": \"XXXUS @ ATVPDKIKX0DER\",\n  \"addTags\": [\n    \"north-america\"\n  ],\n  \"removeTags\": [\n    \"org://ebay\"\n  ]\n}"

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

{
  "channelId": "A1234567890ABC",
  "merchantId": "XXXUS @ ATVPDKIKX0DER",
  "tags": [
    "amazon",
    "north-america"
  ]
}

This response has no body data.