curl --request POST \
  --url https://{deployment}/api/v1/notion/bulk-upsert \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --header 'X-Notion-Token: <api-key>' \
  --data '
{
  "notion_id": "26f...",
  "lookup_properties": [
    "Email"
  ],
  "records": [
    {
      "Email": "a@b.com",
      "Name": "A"
    }
  ]
}
'

import requests

url = "https://{deployment}/api/v1/notion/bulk-upsert"

payload = {
    "notion_id": "26f...",
    "lookup_properties": ["Email"],
    "records": [
        {
            "Email": "a@b.com",
            "Name": "A"
        }
    ]
}
headers = {
    "X-API-KEY": "<api-key>",
    "X-Notion-Token": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'X-API-KEY': '<api-key>',
    'X-Notion-Token': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    notion_id: '26f...',
    lookup_properties: ['Email'],
    records: [{Email: 'a@b.com', Name: 'A'}]
  })
};

fetch('https://{deployment}/api/v1/notion/bulk-upsert', 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://{deployment}/api/v1/notion/bulk-upsert",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'notion_id' => '26f...',
    'lookup_properties' => [
        'Email'
    ],
    'records' => [
        [
                'Email' => 'a@b.com',
                'Name' => 'A'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-KEY: <api-key>",
    "X-Notion-Token: <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://{deployment}/api/v1/notion/bulk-upsert"

	payload := strings.NewReader("{\n  \"notion_id\": \"26f...\",\n  \"lookup_properties\": [\n    \"Email\"\n  ],\n  \"records\": [\n    {\n      \"Email\": \"a@b.com\",\n      \"Name\": \"A\"\n    }\n  ]\n}")

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

	req.Header.Add("X-API-KEY", "<api-key>")
	req.Header.Add("X-Notion-Token", "<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.post("https://{deployment}/api/v1/notion/bulk-upsert")
  .header("X-API-KEY", "<api-key>")
  .header("X-Notion-Token", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"notion_id\": \"26f...\",\n  \"lookup_properties\": [\n    \"Email\"\n  ],\n  \"records\": [\n    {\n      \"Email\": \"a@b.com\",\n      \"Name\": \"A\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{deployment}/api/v1/notion/bulk-upsert")

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

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<api-key>'
request["X-Notion-Token"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"notion_id\": \"26f...\",\n  \"lookup_properties\": [\n    \"Email\"\n  ],\n  \"records\": [\n    {\n      \"Email\": \"a@b.com\",\n      \"Name\": \"A\"\n    }\n  ]\n}"

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

{
  "success": true,
  "total": 123,
  "inserted": 123,
  "updated": 123,
  "failed": 123,
  "results": [
    {
      "index": 123,
      "success": true,
      "page_id": "<string>",
      "data": {},
      "error": "<string>",
      "error_code": "<string>"
    }
  ],
  "failed_data": [
    {}
  ],
  "error_message": "<string>"
}

{
  "success": false,
  "error": "<string>"
}