import { Client } from "@notionhq/client"

const notion = new Client({ auth: process.env.NOTION_API_KEY })

const response = await notion.pages.properties.retrieve({
  page_id: "b55c9c91-384d-452b-81db-d1ef79372b75",
  property_id: "aBcD"
})

curl --request GET \
  --url https://api.notion.com/v1/pages/{page_id}/properties/{property_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Notion-Version: <notion-version>'

import requests

url = "https://api.notion.com/v1/pages/{page_id}/properties/{property_id}"

headers = {
    "Notion-Version": "<notion-version>",
    "Authorization": "Bearer <token>"
}

response = requests.get(url, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.notion.com/v1/pages/{page_id}/properties/{property_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Notion-Version: <notion-version>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.notion.com/v1/pages/{page_id}/properties/{property_id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Notion-Version", "<notion-version>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.notion.com/v1/pages/{page_id}/properties/{property_id}")
  .header("Notion-Version", "<notion-version>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.notion.com/v1/pages/{page_id}/properties/{property_id}")

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

request = Net::HTTP::Get.new(url)
request["Notion-Version"] = '<notion-version>'
request["Authorization"] = 'Bearer <token>'

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

{
  "type": "number",
  "number": 123,
  "object": "property_item",
  "id": "<string>"
}

{
  "object": "error",
  "message": "<string>",
  "code": "invalid_json",
  "status": 400,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "unauthorized",
  "status": 401,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "restricted_resource",
  "status": 403,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "object_not_found",
  "status": 404,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "row_limit_exceeded",
  "status": 406,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "conflict_error",
  "status": 409,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "rate_limited",
  "status": 429,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "internal_server_error",
  "status": 500,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "service_unavailable",
  "status": 503,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "gateway_timeout",
  "status": 504,
  "additional_data": {}
}

{
  "object": "error",
  "message": "<string>",
  "code": "service_overload",
  "status": 529,
  "additional_data": {}
}