curl --request GET \
  --url https://data.kushiro.app/api/v1/metrics

import requests

url = "https://data.kushiro.app/api/v1/metrics"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://data.kushiro.app/api/v1/metrics', 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://data.kushiro.app/api/v1/metrics",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($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://data.kushiro.app/api/v1/metrics"

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

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://data.kushiro.app/api/v1/metrics")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://data.kushiro.app/api/v1/metrics")

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

request = Net::HTTP::Get.new(url)

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

{
  "metrics": [
    {
      "id": 1,
      "source_id": "kushiro_population_households_monthly",
      "metric": "population_total",
      "value": 163000,
      "unit": "persons",
      "period": {
        "granularity": "month",
        "start_date": "2026-04-01",
        "end_date": "2026-04-30",
        "label": "2026-04"
      },
      "town": null,
      "age_bucket": null,
      "category": null,
      "fetched_at": "2026-04-29T00:00:00.000Z",
      "raw_blob_key": "raw/kushiro_population_households_monthly/2026-04-29T00-00-00.000Z/file.xlsx"
    }
  ],
  "total": 1,
  "limit": 1000,
  "offset": 0
}

{
  "error": "invalid query parameters",
  "issues": [
    {
      "path": "source",
      "message": "Invalid input: expected string, received undefined"
    }
  ]
}

{
  "error": "internal server error"
}