Read letter details and events

Request

• Base URL
  https://api.vocal.email/v1
• Auth
  • API key in header X-API-Key
  • or HTTP bearer
• TypeScript
  https://skmtc.dev/vocal/apis/magic-heidi-invoicing-software-api/docs/letters/:letterId/get.ts

  A function with typed inputs. Its response is checked against the schema.