My highly opinionated list of things needed to build an app in Scala

README.md

Libraries

• Web framework: Play
• Actors: akka
• Asynchronous Programming: monix (for tasks, reactors, observables, scheduler etc)
• Authentication: Silhouette
• Authorization: Deadbolt
• ORM: doobie (for PostgreSQL)
• Evolutions: flyaway
• I/O: better-files
• JSON: circe + rapture-json (for dynamic JSON access)
• Enums: enumeratum
• Records: scala-records
• DI: macwire
• Config: ssc/ficus
• Logging: log4s
• RPC: remotely
• Caching: scalacache
• Templating: ssp
• Utils: pimpathon, scalactic, rapture, shapeless
• Algebra: cats + monocole
• Numeric: spire, squants
• Codecs: scodec
• Java Integration: scala-time, scala-java8-compat
• Data Validation: accord, refined
• Streams: swave
• ScalaJS: scalajs-react + Components

If you are using Play, these are reasonable alternatives to above since these have better out-of-the-box Play support:

• ORM: slick + slick-pg + type-checked SQL (for PostgreSQL)
• Evolutions: play-evolutions
• JSON: play-json + play-json-derived + support for >22 fields
• Logging: play-logger
• Templating: twirl
• ScalaJs + Play

Code Quality

• Testing: ScalaTest + ScalaCheck
• Coverage: https://codecov.io + scoverage
• CI: CircleCI
• Lint: wartremover, linter, etc
• Code style: ScalaStyle
• Codacy: https://www.codacy.com/
• Error Monitoring: OverOps + Loggly + NewRelic

sbt plugins

• Sample multi-project build.sbt
• Trailing commas
• native packager + sbt-docker
• sbt-updates

See also: https://github.com/lauris/awesome-scala