SAAS Backend Starter Template

You can check out my project IndiePitcher for an example of a SAAS with a backend written in Swift, using this template.

This is an extension of Vapor's starter template to get the backend for your next SAAS off the ground. Or if you're jsut curious about server-side Swift and Vapor, and would like to see some real code.

It takes care of the tedious tasks for you, user management, sending emails, analytics, error logging...

Every SAAS needs to handle user sign up, and if your service takes off, you'll start being asked by customers how they can invite their colleagues. This ends up being a huge pain if everything is tied to a user profile instead of an organization unit. That's why this template includes a complete organization management with 3 levels of user permission. You can create a default org with a user profile during sign up that's hidden from the user, that's fine, and you are ready for to future.

• This repo will be expanded and kept up to date with the latest Swift and Vapor releases, feel free to give it a star and/or subscribe for updates.
• I'm working on a course explaining everything in in a very detailed way. Join the waitlist.

Overview

• JWT-based user authentication using Firebase
  • Firebase provides a very generous offering of 50,000 monthly active users for free
  • You can swap firebase for a different provider with little effort
• Grouping users into organisations with user roles
  • Think GitHub or Figma organization you have for your company
• Using PostgreSQL as database
  • Swappable for a different database supported by Vapor’s ORM framework Fluent, I’d recommend sticking with PostgreSQL though
• Sending emails using IndiePitcher
  • Send automated emails such as "You've been added to RockerAI organization as an admin."
  • Can be swapped for Sendgrid, Resend, or another solution
• Tracking of server events to Mixpanel
  • Tracking important events, such as new user sign up, is more reliable to track from the backend than
  • Mixpanel offers a generous free tier and is realtime.
• Logging of errors to Sentry
  • Automatic logging of erros and warning
  • Sentry offers a generous free plan to get you started
• All dockerized and deployable pretty much anywhere
  • AWS, DigitalOcean, ...
• Tests for everything
  • Don’t worry about breaking the production, we have unit tests.

How to Use

• Clone this repo to use it as a building block for your project
• You'll need a postgre database. You can
• When cloned, create .env file and fill in following info to be able to run the app against a local database.

  • FIREBASE_PROJECT_ID=your-firebase-project-id
    IP_SECRET_API_KEY=your-indiepitcher-api-key
    

    • This is enough to run the project locally. When deploying to production, you'll want to add the database connection keys, as well as optionally your mixpanel and sentry credentials
    • You can copy the FIREBASE_PROJECT_ID from .env.testing to try things out, but please do create your own firebase project.
    • IP_SECRET_API_KEY is for sending emails. You can create one for free by visiting https://indiepitcher.com or by replacing injecting IndiePitcherEmailService with MockEmailService to disable sending emails.
• Set up your local dev environment, you need to spin up a database. An easy way is by downloading Docker and typing in following commands
  • docker-compose build
  • docker-compose up db starts a local database to develop against
  • docker-compose up db-test starts a local database to run init tests against (this is a separate database so you don't wipe your data when running unit tests)
  • docker-compose down to shut the databases down, or just kill the docker app
• Running the project locally and running the unit tests should now work

Deployment

You can deploy your backend anywhere that supports Docker. An obvious choice for many people would be AWS, I'm personally a fan of Digital Ocean's App Platform.

I'd also encourage you to join the vapor discord. Feel free to DM me there.