This playground inspired by this article: Protocol Buffers から TypeScript の型定義を作る
User -> BFF Client -> gRPC Server
yarn install
yarn devcall get-posts
curl http://localhost:9999/get-posts
{"result":{"postsList":[{"id":1,"title":"にたわき","content":"よろしくおねがいします"},{"id":2,"title":"犬","content":"犬をよろしくおねがいします"}]}}