const options = {
  method: 'PATCH',
  headers: {cookie: 'session=', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    channels: {slack: {enabled: true, webhookUrl: '<string>', channel: '<string>'}},
    subscriptions: {}
  })
};

fetch('https://api.example.com/v1/regions/global/notifications/settings', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/v1/regions/global/notifications/settings"

	payload := strings.NewReader("{\n  \"channels\": {\n    \"slack\": {\n      \"enabled\": true,\n      \"webhookUrl\": \"<string>\",\n      \"channel\": \"<string>\"\n    }\n  },\n  \"subscriptions\": {}\n}")

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

	req.Header.Add("cookie", "session=")
	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))

}

curl --request PATCH \
  --url https://api.example.com/v1/regions/global/notifications/settings \
  --header 'Content-Type: application/json' \
  --cookie session= \
  --data '
{
  "channels": {
    "slack": {
      "enabled": true,
      "webhookUrl": "<string>",
      "channel": "<string>"
    }
  },
  "subscriptions": {}
}
'

import requests

url = "https://api.example.com/v1/regions/global/notifications/settings"

payload = {
    "channels": { "slack": {
            "enabled": True,
            "webhookUrl": "<string>",
            "channel": "<string>"
        } },
    "subscriptions": {}
}
headers = {
    "cookie": "session=",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "success": true,
  "data": {
    "channels": {
      "inApp": {
        "enabled": true
      },
      "email": {
        "enabled": true,
        "address": "jsmith@example.com",
        "digestFrequency": "realtime"
      },
      "slack": {
        "enabled": true,
        "webhookUrl": "<string>",
        "channel": "<string>"
      }
    },
    "subscriptions": {}
  },
  "meta": {}
}