KLine

What is it?

Code Generated GraphQL Kotlin Server with Apollo React Front End

Examples

• Example - Graphiql
• Quick Picks
• KLine Auth

Easy Development

Start developing with ./kline.sh start; this brings up a database (postgres), starts the React dev server (includes live updates), starts a Kotlin Server (after running Database Migrations), all behind an nginx proxy.

Backend

• Kotlin all the way
• Wonderful kotlin-graphql for code first generation of GraphQL schemas, built on graphql-java
• Great Http Server Javalin
• Fantastic Connection Pooling Hikari CP.
• Amazing ORM Exposed
• All the Metrics metrics-core and metrics-healthchecks
• Lightning Fast Serialization Jackson
• Latest testing with JUnit 5

Frontend

• React all the way, courtesy of create-react-app
• Better GraphQL Apollo Client
• Beautiful Toast Notifications Toastify
• Don't mess up Dates date-fns

Honorable Mentions

• Exactly what I want Date Picker react-datepicker
• Anything Dates in One BigCalender
• Use Kotlin for Everything create-kotlin-react-app

Docker and Docker Compose

Stop worrying about cross platform dependencies with Docker, easily run it with Docker Compose.

Docker

• Build once, run everywhere

Docker Compose

• Run everything on one machine
  • Use Docker Swarm to run on multiple machines

NGINX

• Creates a proxy so that it seems like backend and frontend are running on the same server
• nginx.conf

Easy Deployment

No matter how you want to run your app it should be easy. This project includes Docker Images to simplify deployment of server and frontend, as well as build scripts to run without Docker.

Backend

The Docker Image is ready to run, just needs a DATABASE_URL set as an environment variable. Running without Docker is easy too, same rules apply.

Heroku

• Create new project: heroku create [<name>]
• Push only the server: git subtree push --prefix api heroku master

Frontend

The Docker Image from Dockerfile.live is the live/production version, just needs a GRAPHQL_URL. Running without Docker is easy too.

Netlify

• Create New Project (connect to Github)
• Build Command: cd web && npm install && npm run build
• Publish Directory: web/build

Heroku

• Create new project: heroku create [<name>]
• Push only the frontend: git subtree push --prefix web heroku master

What isn't it?

Authenticated

Check out KLine Auth

Mobile or Desktop App

While it wouldn't be too hard to add a base Mobile App (React Native) or Desktop App (Tornado FX, Proton Native), not every website needs those. This project is primarily focused on web apps with a database.

Why KLine?

This project is inspired by Rails, K Line is actually a Japanese shipping company. That's the goal of this project, ship it!