curl --request PATCH \
  --url https://api.gcore.com/cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data @- <<EOF
{
  "databases": [],
  "flavor": {
    "cpu": 1,
    "memory_gib": 1
  },
  "high_availability": {},
  "network": {
    "acl": [
      "92.33.34.127"
    ],
    "network_type": "public"
  },
  "pg_server_configuration": {
    "pg_conf": "\nlisten_addresses = 'localhost'\nport = 5432\nmax_connections = 100\nshared_buffers = 128MB\nlogging_collector = on",
    "pooler": null,
    "version": "15"
  },
  "storage": {
    "size_gib": 100
  },
  "users": []
}
EOF

import requests

url = "https://api.gcore.com/cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name}"

payload = {
    "databases": [],
    "flavor": {
        "cpu": 1,
        "memory_gib": 1
    },
    "high_availability": {},
    "network": {
        "acl": ["92.33.34.127"],
        "network_type": "public"
    },
    "pg_server_configuration": {
        "pg_conf": "
listen_addresses = 'localhost'
port = 5432
max_connections = 100
shared_buffers = 128MB
logging_collector = on",
        "pooler": None,
        "version": "15"
    },
    "storage": { "size_gib": 100 },
    "users": []
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    databases: [],
    flavor: {cpu: 1, memory_gib: 1},
    high_availability: {},
    network: {acl: ['92.33.34.127'], network_type: 'public'},
    pg_server_configuration: {
      pg_conf: '\nlisten_addresses = \'localhost\'\nport = 5432\nmax_connections = 100\nshared_buffers = 128MB\nlogging_collector = on',
      pooler: null,
      version: '15'
    },
    storage: {size_gib: 100},
    users: []
  })
};

fetch('https://api.gcore.com/cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name}', 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.gcore.com/cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name}",
  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([
    'databases' => [
        
    ],
    'flavor' => [
        'cpu' => 1,
        'memory_gib' => 1
    ],
    'high_availability' => [
        
    ],
    'network' => [
        'acl' => [
                '92.33.34.127'
        ],
        'network_type' => 'public'
    ],
    'pg_server_configuration' => [
        'pg_conf' => '
listen_addresses = \'localhost\'
port = 5432
max_connections = 100
shared_buffers = 128MB
logging_collector = on',
        'pooler' => null,
        'version' => '15'
    ],
    'storage' => [
        'size_gib' => 100
    ],
    'users' => [
        
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "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.gcore.com/cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name}"

	payload := strings.NewReader("{\n  \"databases\": [],\n  \"flavor\": {\n    \"cpu\": 1,\n    \"memory_gib\": 1\n  },\n  \"high_availability\": {},\n  \"network\": {\n    \"acl\": [\n      \"92.33.34.127\"\n    ],\n    \"network_type\": \"public\"\n  },\n  \"pg_server_configuration\": {\n    \"pg_conf\": \"\\nlisten_addresses = 'localhost'\\nport = 5432\\nmax_connections = 100\\nshared_buffers = 128MB\\nlogging_collector = on\",\n    \"pooler\": null,\n    \"version\": \"15\"\n  },\n  \"storage\": {\n    \"size_gib\": 100\n  },\n  \"users\": []\n}")

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

	req.Header.Add("Authorization", "<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://api.gcore.com/cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name}")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"databases\": [],\n  \"flavor\": {\n    \"cpu\": 1,\n    \"memory_gib\": 1\n  },\n  \"high_availability\": {},\n  \"network\": {\n    \"acl\": [\n      \"92.33.34.127\"\n    ],\n    \"network_type\": \"public\"\n  },\n  \"pg_server_configuration\": {\n    \"pg_conf\": \"\\nlisten_addresses = 'localhost'\\nport = 5432\\nmax_connections = 100\\nshared_buffers = 128MB\\nlogging_collector = on\",\n    \"pooler\": null,\n    \"version\": \"15\"\n  },\n  \"storage\": {\n    \"size_gib\": 100\n  },\n  \"users\": []\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gcore.com/cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name}")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"databases\": [],\n  \"flavor\": {\n    \"cpu\": 1,\n    \"memory_gib\": 1\n  },\n  \"high_availability\": {},\n  \"network\": {\n    \"acl\": [\n      \"92.33.34.127\"\n    ],\n    \"network_type\": \"public\"\n  },\n  \"pg_server_configuration\": {\n    \"pg_conf\": \"\\nlisten_addresses = 'localhost'\\nport = 5432\\nmax_connections = 100\\nshared_buffers = 128MB\\nlogging_collector = on\",\n    \"pooler\": null,\n    \"version\": \"15\"\n  },\n  \"storage\": {\n    \"size_gib\": 100\n  },\n  \"users\": []\n}"

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

{
  "tasks": [
    "d478ae29-dedc-4869-82f0-96104425f565"
  ]
}