Apify を ClickHouse に接続する

npm install apify-client @clickhouse/client

CREATE TABLE apify_products
(
    url        String,
    title      String,
    price      Float64,
    currency   String,
    scraped_at DateTime DEFAULT now()
)
ENGINE = MergeTree()
ORDER BY (scraped_at, url);

import { ApifyClient } from 'apify-client';
import { createClient } from '@clickhouse/client';

// クライアントを初期化
const apify = new ApifyClient({ token: 'YOUR_APIFY_API_TOKEN' });
const clickhouse = createClient({
    url: 'https://YOUR_CLICKHOUSE_HOST:8443',
    username: 'default',
    password: 'YOUR_CLICKHOUSE_PASSWORD',
    database: 'default',
});

// Actor の直近の実行から Dataset 項目を取得
const run = await apify.actor('YOUR_ACTOR_ID').call();
const { items } = await apify.dataset(run.defaultDatasetId).listItems();

console.log(`Fetched ${items.length} items from Apify dataset.`);

// ClickHouse に挿入
await clickhouse.insert({
    table: 'apify_products',
    values: items,
    format: 'JSONEachRow',
});

console.log(`Inserted ${items.length} rows into ClickHouse.`);
await clickhouse.close();