JarCasting
Function-based Json templating language
Overview
jsont is a combinator based library for building Json validators.
Example
Most convenient way to describe your Json is to use one of the supplied string interpolators. You can use either the jsont:
import jsont.run
import jsont.literal._
val validator = jsont"""{
"a": ${int(_ > 0)},
"b": ${string(_.length % 5 == 0)},
"c": [
${string(_.toUpperCase == "ABCD")},
${regex("""\d\d\d\d-\d\d-\d\d""".r)}
]
}"""
val validated = json"""{
"a": 1,
"b": "55555",
"c": [
"abcd",
"2019-12-12"
]
}"""
run(validator, validated)
// Chain()
Or when used in tests, use scalatest's Matcher directly:
jsont"""{
"a": ${int(_ > 0)},
"b": ${string(_.length % 5 == 0)},
"c": [
${string(_.toUpperCase == "ABCD")},
${regex("""\d\d\d\d-\d\d-\d\d""".r)}
]
}""" should matchJson """{
"a": 1,
"b": "55555",
"c": [
"abcd",
"2019-12-12"
]
}"""
Getting started
Add the following to your build.sbt:
libraryDependencies += "com.github.foftware" % "jsont-core_2.12" % "0.1.1"
libraryDependencies += "com.github.foftware" % "jsont-literal_2.12" % "0.1.1"
libraryDependencies += "com.github.foftware" % "jsont-scalatest_2.12" % "0.1.1"
