curl --request POST \
  --url https://api.anysite.io/api/rakuma/items/search \
  --header 'Content-Type: application/json' \
  --header 'access-token: <api-key>' \
  --data '
{
  "count": 2000,
  "timeout": 300,
  "query": "",
  "excluded_query": "",
  "brand_id": 1,
  "exclude_no_brand": false,
  "category_id": 1,
  "size_id": 1,
  "min_price": 1,
  "max_price": 1,
  "conditions": [],
  "transaction": "all",
  "authenticity": [],
  "business_types": [],
  "anonymous_shipping": false,
  "postage_included": false,
  "sort": "relevance",
  "order": "desc"
}
'

import requests

url = "https://api.anysite.io/api/rakuma/items/search"

payload = {
    "count": 2000,
    "timeout": 300,
    "query": "",
    "excluded_query": "",
    "brand_id": 1,
    "exclude_no_brand": False,
    "category_id": 1,
    "size_id": 1,
    "min_price": 1,
    "max_price": 1,
    "conditions": [],
    "transaction": "all",
    "authenticity": [],
    "business_types": [],
    "anonymous_shipping": False,
    "postage_included": False,
    "sort": "relevance",
    "order": "desc"
}
headers = {
    "access-token": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'access-token': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    count: 2000,
    timeout: 300,
    query: '',
    excluded_query: '',
    brand_id: 1,
    exclude_no_brand: false,
    category_id: 1,
    size_id: 1,
    min_price: 1,
    max_price: 1,
    conditions: [],
    transaction: 'all',
    authenticity: [],
    business_types: [],
    anonymous_shipping: false,
    postage_included: false,
    sort: 'relevance',
    order: 'desc'
  })
};

fetch('https://api.anysite.io/api/rakuma/items/search', 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.anysite.io/api/rakuma/items/search",
  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([
    'count' => 2000,
    'timeout' => 300,
    'query' => '',
    'excluded_query' => '',
    'brand_id' => 1,
    'exclude_no_brand' => false,
    'category_id' => 1,
    'size_id' => 1,
    'min_price' => 1,
    'max_price' => 1,
    'conditions' => [
        
    ],
    'transaction' => 'all',
    'authenticity' => [
        
    ],
    'business_types' => [
        
    ],
    'anonymous_shipping' => false,
    'postage_included' => false,
    'sort' => 'relevance',
    'order' => 'desc'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "access-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://api.anysite.io/api/rakuma/items/search"

	payload := strings.NewReader("{\n  \"count\": 2000,\n  \"timeout\": 300,\n  \"query\": \"\",\n  \"excluded_query\": \"\",\n  \"brand_id\": 1,\n  \"exclude_no_brand\": false,\n  \"category_id\": 1,\n  \"size_id\": 1,\n  \"min_price\": 1,\n  \"max_price\": 1,\n  \"conditions\": [],\n  \"transaction\": \"all\",\n  \"authenticity\": [],\n  \"business_types\": [],\n  \"anonymous_shipping\": false,\n  \"postage_included\": false,\n  \"sort\": \"relevance\",\n  \"order\": \"desc\"\n}")

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

	req.Header.Add("access-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://api.anysite.io/api/rakuma/items/search")
  .header("access-token", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"count\": 2000,\n  \"timeout\": 300,\n  \"query\": \"\",\n  \"excluded_query\": \"\",\n  \"brand_id\": 1,\n  \"exclude_no_brand\": false,\n  \"category_id\": 1,\n  \"size_id\": 1,\n  \"min_price\": 1,\n  \"max_price\": 1,\n  \"conditions\": [],\n  \"transaction\": \"all\",\n  \"authenticity\": [],\n  \"business_types\": [],\n  \"anonymous_shipping\": false,\n  \"postage_included\": false,\n  \"sort\": \"relevance\",\n  \"order\": \"desc\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.anysite.io/api/rakuma/items/search")

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

request = Net::HTTP::Post.new(url)
request["access-token"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"count\": 2000,\n  \"timeout\": 300,\n  \"query\": \"\",\n  \"excluded_query\": \"\",\n  \"brand_id\": 1,\n  \"exclude_no_brand\": false,\n  \"category_id\": 1,\n  \"size_id\": 1,\n  \"min_price\": 1,\n  \"max_price\": 1,\n  \"conditions\": [],\n  \"transaction\": \"all\",\n  \"authenticity\": [],\n  \"business_types\": [],\n  \"anonymous_shipping\": false,\n  \"postage_included\": false,\n  \"sort\": \"relevance\",\n  \"order\": \"desc\"\n}"

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

[
  {
    "id": "<string>",
    "name": "<string>",
    "@type": "RakumaItemCard",
    "internal_id": 123,
    "price": 123,
    "currency": "JPY",
    "is_sold": false,
    "brand": {
      "id": 123,
      "@type": "RakumaBrandRef",
      "name": "<string>",
      "url": "<string>"
    },
    "category": {
      "@type": "RakumaCategoryRef",
      "id": 123,
      "name": "<string>",
      "url": "<string>"
    },
    "category_path": [],
    "seller_id": 123,
    "seller_type": "<string>",
    "image": "<string>",
    "url": "<string>"
  }
]

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}