このレッスンは、現在英語のみです。
練習
Points, exactly once
When Sara's post gets a like, her points must go up exactly once, even if the app retries the request after a timeout. You will build that with a ledger table, a unique key and a transaction.
このレッスンは、現在英語のみです。
When Sara's post gets a like, her points must go up exactly once, even if the app retries the request after a timeout. You will build that with a ledger table, a unique key and a transaction.