@suin/email-data

A simple email data representation for TypeScript.

This component provides a very simple reusable interface that represents an email.

The interface was designed for the use case that treats received emails from POP3, SendGrid Inbound Parse, Gmail API and so on.

Features

• Abstract email data type EmailData
• Type guard function
• Validation function
• Assertion function

Missing Features

The following features hasn't been implemented yet:

• Some models:
  • BCC header
  • Attachments

Installation

yarn add @suin/email-data
# or
npm install @suin/email-data

Usages

Declaring the EmailData value

import { EmailData } from '@suin/email-data'

const email: EmailData = {
  from: [{ name: 'Alice', address: 'alice@example.com' }],
  to: [{ name: 'Bob', address: 'bob@example.com' }],
  cc: [],
  replyTo: [],
  subject: 'Hi',
  bodyText: 'Hello',
  bodyHtml: '<p>Hello</p>',
}

Using the type guard function

import { isEmailData } from '@suin/email-data'

const email: unknown = {
  /* ... */
}

if (isEmailData(email)) {
  console.log(email.subject)
} else {
  console.log('The value is incompatible with EmailData')
}

Using the validation function

import { parseEmailData } from '@suin/email-data'

try {
  const email = parseEmailData(JSON.parse('{}'))
  console.log('The JSON value is compatible with EmailData', email)
} catch (error) {
  console.log(error)
}

Using the assertion function

import { assertEmailData } from '@suin/email-data'

try {
  const email: unknown = JSON.parse('{}')
  assertEmailData(email)
  console.log('The JSON value is compatible with EmailData', email)
} catch (error) {
  console.log(error)
}

API Reference

https://suin.github.io/email-data/