https://github.com/dwolla/anorm-cats

Cats typeclass instances for the Anorm database library
https://github.com/dwolla/anorm-cats

Last synced: about 2 months ago
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Cats typeclass instances for the Anorm database library

• Host: GitHub
• URL: https://github.com/dwolla/anorm-cats
• Owner: Dwolla
• License: mit
• Created: 2020-09-17T17:06:26.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2020-09-17T23:04:33.000Z (over 4 years ago)
• Last Synced: 2025-02-15T23:45:30.668Z (4 months ago)
• Language: Scala
• Size: 12.7 KB
• Stars: 0
• Watchers: 14
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# Anorm Cats

Cats typeclass instances for Anorm types.

 * `MonadError[SqlResult, Throwable]`

 * `Traverse[SqlResult]`

 * `Monoid[SqlResult[A]]` for any `A : Monoid`

 * `Monad[RowParser]`

## Usage

`import anorm.interop.cats.implicits._` to bring the instances and the syntax enhancements into scope. (More specific imports are available in the `anorm.interop.cats.syntax` and `anorm.interop.cats.instances` packages.)

### Example

```scala

import anorm._

import anorm.interop.cats.implicits._

import cats._

def parseMyNumberFromRow[F[_] : ApplicativeError[*[_], Throwable]](row: Row): F[Int] =

  SqlParser.get[Int]("my_number")       // RowParser[Int]

    .apply(row)                         // SqlResult[Int]

    .liftTo[F]                          // F[Int]

```