curl --request PATCH \
  --url https://api.gcore.com/cloud/v1/faas/namespaces/{project_id}/{region_id}/{namespace_name}/functions/{function_name} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data @- <<EOF
{
  "autoscaling": {
    "max_instances": 5,
    "min_instances": 1
  },
  "code_text": "def main():\n    return 'Hello World'",
  "dependencies": "numpy==1.21.0\npandas==1.3.0",
  "description": "This is a sample function.",
  "disabled": false,
  "enable_api_key": true,
  "envs": {
    "ENV_VAR": "value"
  },
  "flavor": "128m-128MB",
  "keys": [
    "key1",
    "key2"
  ],
  "main_method": "run",
  "timeout": 60
}
EOF

import requests

url = "https://api.gcore.com/cloud/v1/faas/namespaces/{project_id}/{region_id}/{namespace_name}/functions/{function_name}"

payload = {
    "autoscaling": {
        "max_instances": 5,
        "min_instances": 1
    },
    "code_text": "def main():
    return 'Hello World'",
    "dependencies": "numpy==1.21.0
pandas==1.3.0",
    "description": "This is a sample function.",
    "disabled": False,
    "enable_api_key": True,
    "envs": { "ENV_VAR": "value" },
    "flavor": "128m-128MB",
    "keys": ["key1", "key2"],
    "main_method": "run",
    "timeout": 60
}
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({
    autoscaling: {max_instances: 5, min_instances: 1},
    code_text: 'def main():\n    return \'Hello World\'',
    dependencies: 'numpy==1.21.0\npandas==1.3.0',
    description: 'This is a sample function.',
    disabled: false,
    enable_api_key: true,
    envs: {ENV_VAR: 'value'},
    flavor: '128m-128MB',
    keys: ['key1', 'key2'],
    main_method: 'run',
    timeout: 60
  })
};

fetch('https://api.gcore.com/cloud/v1/faas/namespaces/{project_id}/{region_id}/{namespace_name}/functions/{function_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/faas/namespaces/{project_id}/{region_id}/{namespace_name}/functions/{function_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([
    'autoscaling' => [
        'max_instances' => 5,
        'min_instances' => 1
    ],
    'code_text' => 'def main():
    return \'Hello World\'',
    'dependencies' => 'numpy==1.21.0
pandas==1.3.0',
    'description' => 'This is a sample function.',
    'disabled' => false,
    'enable_api_key' => true,
    'envs' => [
        'ENV_VAR' => 'value'
    ],
    'flavor' => '128m-128MB',
    'keys' => [
        'key1',
        'key2'
    ],
    'main_method' => 'run',
    'timeout' => 60
  ]),
  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/faas/namespaces/{project_id}/{region_id}/{namespace_name}/functions/{function_name}"

	payload := strings.NewReader("{\n  \"autoscaling\": {\n    \"max_instances\": 5,\n    \"min_instances\": 1\n  },\n  \"code_text\": \"def main():\\n    return 'Hello World'\",\n  \"dependencies\": \"numpy==1.21.0\\npandas==1.3.0\",\n  \"description\": \"This is a sample function.\",\n  \"disabled\": false,\n  \"enable_api_key\": true,\n  \"envs\": {\n    \"ENV_VAR\": \"value\"\n  },\n  \"flavor\": \"128m-128MB\",\n  \"keys\": [\n    \"key1\",\n    \"key2\"\n  ],\n  \"main_method\": \"run\",\n  \"timeout\": 60\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/faas/namespaces/{project_id}/{region_id}/{namespace_name}/functions/{function_name}")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"autoscaling\": {\n    \"max_instances\": 5,\n    \"min_instances\": 1\n  },\n  \"code_text\": \"def main():\\n    return 'Hello World'\",\n  \"dependencies\": \"numpy==1.21.0\\npandas==1.3.0\",\n  \"description\": \"This is a sample function.\",\n  \"disabled\": false,\n  \"enable_api_key\": true,\n  \"envs\": {\n    \"ENV_VAR\": \"value\"\n  },\n  \"flavor\": \"128m-128MB\",\n  \"keys\": [\n    \"key1\",\n    \"key2\"\n  ],\n  \"main_method\": \"run\",\n  \"timeout\": 60\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gcore.com/cloud/v1/faas/namespaces/{project_id}/{region_id}/{namespace_name}/functions/{function_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  \"autoscaling\": {\n    \"max_instances\": 5,\n    \"min_instances\": 1\n  },\n  \"code_text\": \"def main():\\n    return 'Hello World'\",\n  \"dependencies\": \"numpy==1.21.0\\npandas==1.3.0\",\n  \"description\": \"This is a sample function.\",\n  \"disabled\": false,\n  \"enable_api_key\": true,\n  \"envs\": {\n    \"ENV_VAR\": \"value\"\n  },\n  \"flavor\": \"128m-128MB\",\n  \"keys\": [\n    \"key1\",\n    \"key2\"\n  ],\n  \"main_method\": \"run\",\n  \"timeout\": 60\n}"

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

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