SendGrid-Mock

SendGrid-Mock serves as a simple server mocking the sendgrid-apis for development purposes.

Functionalities

HTTP API

• Send mails POST /v3/mail/send

• Retrieve sent mails GET /api/mails

  • Filter capabilities are included and can be combined:
    • To: GET /api/[email protected]
    • Subject:
      • GET /api/mails?subject=The subject (exact match)
      • GET /api/mails?subject=%subject% (contains)
    • Datetime: GET /api/mails?dateTimeSince=2020-12-06T10:00:00Z ( ISO-8601 format)

• Delete sent mails DELETE /api/mails

  • Filter capabilities are included and can be combined:
    • To: DELETE /api/[email protected]

UI

• Retrieve sent mails and display them
• Delete sent mails

Extras

• Basic authentication support: Add basic authentication credentials by specifying environment variable AUTHENTICATION to the following format: user1:passwordForUser1;user2:passwordForUser2. This applies only to the static content.

• API key support: Add API key authentication by specifying environment variable API_KEY. This applies only to the API endpoints.

• Request rate limiting: Both the actual SendGrid API server as well as the SSL server can be rate limited by specifying environment variables:

  • RATE_LIMIT_ENABLED: true or false (default)
  • RATE_LIMIT_WINDOW_IN_MS: The time window in milliseconds (default: 60000)
  • RATE_LIMIT_MAX_REQUESTS: The maximum number of requests allowed in the time window (default: 100)
  • SSL_RATE_LIMIT_ENABLED: true or false (default)
  • SSL_RATE_LIMIT_WINDOW_IN_MS: The time window in milliseconds (default: 60000)
  • SSL_RATE_LIMIT_MAX_REQUESTS: The maximum number of requests allowed in the time window (default: 100)

• By default, all emails older than 24 hours will be deleted. This can be configured using environment variable MAIL_HISTORY_DURATION which uses ISO-8601 Duration format such as 'PT24H'.

• Event support: Add basic event support by specifying the environment variable EVENT_DELIVERY_URL. When set, delivered events will be sent to the specified webhook URL when an email is sent.

Dockerized

The SendGrid-Mock server and the UI are both contained in the same docker-image which you can pull from Docker Hub and start it via:

docker run -it -p 3000:3000 -e "API_KEY=sendgrid-api-key" ghashange/sendgrid-mock:1.12.0

Some prepared HTTP calls can be found here.

The UI can be accessed at http://localhost:3000.

SSL support

SendGrid-Mock also supports SSL using Let's Encrypt. To enable SSL, run it as follows:

docker run -it -p 3000:3000 -e "API_KEY=sendgrid-api-key" -e "CERT_DOMAINNAMES=[your-domain-name]" -e "CERT_EMAIL=[your-email-address]" ghashange/sendgrid-mock:1.12.0

Development

Setup with npm ci and start both server and UI concurrently with npm run dev. Per default the server is reachable via http://localhost:3000 and the UI via http://localhost:1234.

Some prepared HTTP calls can be found here.

The UI can be accessed at http://localhost:3000.

Build

Create docker image with docker build -t ghashange/sendgrid-mock:1.12.0 ..

Release

1. Update version number in package.json, version file and README

2. Create PR against master branch

3. Merge PR

4. Create GitHub release and update Docker Hub description