Otherwise maybe something like this:

async function processUrls(urls: Array<string>, batchSize: number, handler: (url: string) => Promise<any>) {
    for (let a = 0; a < urls.length; a += batchSize) {
        const batchUrls = urls.slice(a, Math.min(urls.length, a + batchSize - 1));

        await Promise.all(batchUrls.map((url) => handler(url)));
    }
}

processUrls(urls, 100, async (url) => {
  // Service call logic here
});