Delta Sync

List tables changed since a given timestamp

Returns metadata for all tables whose last successful sync occurred after since. Only tables with status = 'synced' and a non-null last_sync_at are returned. Each entry includes an endpoint_url pointing to the corresponding category endpoint (e.g. /realestates/objects) or /raw/{table_name} for tables without a category mapping.

ETag / conditional GET: The response includes an ETag header based on the latest sync timestamp. Send the value back as If-None-Match on subsequent requests — when the sync state has not changed the server returns 304 Not Modified without a body and without querying the change data.

Use case: Poll this endpoint periodically to discover which tables have new data before fetching only the changed ones — avoids fetching unchanged tables on every sync.

GET

changes

List tables changed since a given timestamp

curl --request GET \
  --url https://api.example.com/changes \
  --header 'X-API-Key: <api-key>'

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.example.com/changes', 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.example.com/changes",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-Key: <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"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/changes"

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

	req.Header.Add("X-API-Key", "<api-key>")

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

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

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.example.com/changes")

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

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'

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

[
  {
    "table_name": "properties",
    "last_sync_at": "2026-07-07T06:00:00",
    "category": "realestates",
    "api_table_name": "objects",
    "endpoint_url": "/realestates/objects"
  },
  {
    "table_name": "ixhaus_contracts",
    "last_sync_at": "2026-07-07T06:05:00",
    "endpoint_url": "/raw/ixhaus_contracts"
  }
]

Authorizations

X-API-Key

string

header

required

Query Parameters

since

string | null

ISO-8601 UTC timestamp. Only tables synced after this point are returned. Required. Must not be older than 30 days. Example: 2026-07-01T00:00:00Z

Response

List of changed tables (may be empty if nothing has changed)

table_name

string

required

Internal database table name (snake_case iXHaus export name).

last_sync_at

string<date-time>

required

UTC timestamp of the last successful sync for this table.

category

string | null

required

API category slug (e.g. realestates). null for tables that have no category mapping and are only accessible via /raw/.

api_table_name

string | null

required

Table name as used in the category endpoint URL (e.g. objects). null when category is null.

endpoint_url

string

required

Relative URL to fetch data for this table, e.g. /realestates/objects or /raw/ixhaus__ixexpobj.

⌘I

List tables changed since a given timestamp

curl --request GET \
  --url https://api.example.com/changes \
  --header 'X-API-Key: <api-key>'

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.example.com/changes', 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.example.com/changes",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-Key: <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"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/changes"

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

	req.Header.Add("X-API-Key", "<api-key>")

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

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

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.example.com/changes")

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

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'

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

[
  {
    "table_name": "properties",
    "last_sync_at": "2026-07-07T06:00:00",
    "category": "realestates",
    "api_table_name": "objects",
    "endpoint_url": "/realestates/objects"
  },
  {
    "table_name": "ixhaus_contracts",
    "last_sync_at": "2026-07-07T06:05:00",
    "endpoint_url": "/raw/ixhaus_contracts"
  }
]

Overview

Endpoints

List tables changed since a given timestamp

Authorizations

Query Parameters

Response