[小ネタ] TypeScript 7 (typescript-go) 環境下で @sendgrid/mail を使う事象 TypeScript の次期メジャーバージョンである TypeScript 7 (typescript-go) にアップグレードすると，SendGrid の公式 Node.js 用 SDK である @sendgrid/mail が動作しなくなります． 具体的には， tsgo でコンパイルした時に以下のようなエラーが発生します． src/main.ts:3:9 - error TS2595: 'MailService' can only be imported by using a default import. 3 import {MailService} from '@sendgrid/mail'; ~~~~~~~~~~~ Found 1 error in src/main.ts:3 原因 @sendgrid/mail の型定義の中で export = mail; と export
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