feat(rule): Rules as a microservice

Added rules as a microservice
This commit is contained in:
LQ63
2026-04-20 19:31:44 +02:00
committed by Janis
parent ffeb3ce338
commit 9c55d1211d
12 changed files with 1041 additions and 2 deletions
+100
View File
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####
# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
#
# Before building the container image run:
#
# ./gradlew build
#
# Then, build the image with:
#
# docker build -f src/main/docker/Dockerfile.jvm -t quarkus/backcore-jvm .
#
# Then run the container using:
#
# docker run -i --rm -p 8080:8080 quarkus/backcore-jvm
#
# If you want to include the debug port into your docker image
# you will have to expose the debug port (default 5005 being the default) like this : EXPOSE 8080 5005.
# Additionally you will have to set -e JAVA_DEBUG=true and -e JAVA_DEBUG_PORT=*:5005
# when running the container
#
# Then run the container using :
#
# docker run -i --rm -p 8080:8080 quarkus/backcore-jvm
#
# This image uses the `run-java.sh` script to run the application.
# This scripts computes the command line to execute your Java application, and
# includes memory/GC tuning.
# You can configure the behavior using the following environment properties:
# - JAVA_OPTS: JVM options passed to the `java` command (example: "-verbose:class") - Be aware that this will override
# the default JVM options, use `JAVA_OPTS_APPEND` to append options
# - JAVA_OPTS_APPEND: User specified Java options to be appended to generated options
# in JAVA_OPTS (example: "-Dsome.property=foo")
# - JAVA_MAX_MEM_RATIO: Is used when no `-Xmx` option is given in JAVA_OPTS. This is
# used to calculate a default maximal heap memory based on a containers restriction.
# If used in a container without any memory constraints for the container then this
# option has no effect. If there is a memory constraint then `-Xmx` is set to a ratio
# of the container available memory as set here. The default is `50` which means 50%
# of the available memory is used as an upper boundary. You can skip this mechanism by
# setting this value to `0` in which case no `-Xmx` option is added.
# - JAVA_INITIAL_MEM_RATIO: Is used when no `-Xms` option is given in JAVA_OPTS. This
# is used to calculate a default initial heap memory based on the maximum heap memory.
# If used in a container without any memory constraints for the container then this
# option has no effect. If there is a memory constraint then `-Xms` is set to a ratio
# of the `-Xmx` memory as set here. The default is `25` which means 25% of the `-Xmx`
# is used as the initial heap size. You can skip this mechanism by setting this value
# to `0` in which case no `-Xms` option is added (example: "25")
# - JAVA_MAX_INITIAL_MEM: Is used when no `-Xms` option is given in JAVA_OPTS.
# This is used to calculate the maximum value of the initial heap memory. If used in
# a container without any memory constraints for the container then this option has
# no effect. If there is a memory constraint then `-Xms` is limited to the value set
# here. The default is 4096MB which means the calculated value of `-Xms` never will
# be greater than 4096MB. The value of this variable is expressed in MB (example: "4096")
# - JAVA_DIAGNOSTICS: Set this to get some diagnostics information to standard output
# when things are happening. This option, if set to true, will set
# `-XX:+UnlockDiagnosticVMOptions`. Disabled by default (example: "true").
# - JAVA_DEBUG: If set remote debugging will be switched on. Disabled by default (example:
# true").
# - JAVA_DEBUG_PORT: Port used for remote debugging. Defaults to 5005 (example: "8787").
# - CONTAINER_CORE_LIMIT: A calculated core limit as described in
# https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt. (example: "2")
# - CONTAINER_MAX_MEMORY: Memory limit given to the container (example: "1024").
# - GC_MIN_HEAP_FREE_RATIO: Minimum percentage of heap free after GC to avoid expansion.
# (example: "20")
# - GC_MAX_HEAP_FREE_RATIO: Maximum percentage of heap free after GC to avoid shrinking.
# (example: "40")
# - GC_TIME_RATIO: Specifies the ratio of the time spent outside the garbage collection.
# (example: "4")
# - GC_ADAPTIVE_SIZE_POLICY_WEIGHT: The weighting given to the current GC time versus
# previous GC times. (example: "90")
# - GC_METASPACE_SIZE: The initial metaspace size. (example: "20")
# - GC_MAX_METASPACE_SIZE: The maximum metaspace size. (example: "100")
# - GC_CONTAINER_OPTIONS: Specify Java GC to use. The value of this variable should
# contain the necessary JRE command-line options to specify the required GC, which
# will override the default of `-XX:+UseParallelGC` (example: -XX:+UseG1GC).
# - HTTPS_PROXY: The location of the https proxy. (example: "myuser@127.0.0.1:8080")
# - HTTP_PROXY: The location of the http proxy. (example: "myuser@127.0.0.1:8080")
# - NO_PROXY: A comma separated lists of hosts, IP addresses or domains that can be
# accessed directly. (example: "foo.example.com,bar.example.com")
#
# You can find more information about the UBI base runtime images and their configuration here:
# https://rh-openjdk.github.io/redhat-openjdk-containers/
###
FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:1.24
ENV LANGUAGE='en_US:en'
# We make four distinct layers so if there are application changes the library layers can be re-used
COPY --chown=185 build/quarkus-app/lib/ /deployments/lib/
COPY --chown=185 build/quarkus-app/*.jar /deployments/
COPY --chown=185 build/quarkus-app/app/ /deployments/app/
COPY --chown=185 build/quarkus-app/quarkus/ /deployments/quarkus/
EXPOSE 8080
USER 185
ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]
@@ -0,0 +1,96 @@
####
# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
#
# Before building the container image run:
#
# ./gradlew build -Dquarkus.package.jar.type=legacy-jar
#
# Then, build the image with:
#
# docker build -f src/main/docker/Dockerfile.legacy-jar -t quarkus/backcore-legacy-jar .
#
# Then run the container using:
#
# docker run -i --rm -p 8080:8080 quarkus/backcore-legacy-jar
#
# If you want to include the debug port into your docker image
# you will have to expose the debug port (default 5005 being the default) like this : EXPOSE 8080 5005.
# Additionally you will have to set -e JAVA_DEBUG=true and -e JAVA_DEBUG_PORT=*:5005
# when running the container
#
# Then run the container using :
#
# docker run -i --rm -p 8080:8080 quarkus/backcore-legacy-jar
#
# This image uses the `run-java.sh` script to run the application.
# This scripts computes the command line to execute your Java application, and
# includes memory/GC tuning.
# You can configure the behavior using the following environment properties:
# - JAVA_OPTS: JVM options passed to the `java` command (example: "-verbose:class") - Be aware that this will override
# the default JVM options, use `JAVA_OPTS_APPEND` to append options
# - JAVA_OPTS_APPEND: User specified Java options to be appended to generated options
# in JAVA_OPTS (example: "-Dsome.property=foo")
# - JAVA_MAX_MEM_RATIO: Is used when no `-Xmx` option is given in JAVA_OPTS. This is
# used to calculate a default maximal heap memory based on a containers restriction.
# If used in a container without any memory constraints for the container then this
# option has no effect. If there is a memory constraint then `-Xmx` is set to a ratio
# of the container available memory as set here. The default is `50` which means 50%
# of the available memory is used as an upper boundary. You can skip this mechanism by
# setting this value to `0` in which case no `-Xmx` option is added.
# - JAVA_INITIAL_MEM_RATIO: Is used when no `-Xms` option is given in JAVA_OPTS. This
# is used to calculate a default initial heap memory based on the maximum heap memory.
# If used in a container without any memory constraints for the container then this
# option has no effect. If there is a memory constraint then `-Xms` is set to a ratio
# of the `-Xmx` memory as set here. The default is `25` which means 25% of the `-Xmx`
# is used as the initial heap size. You can skip this mechanism by setting this value
# to `0` in which case no `-Xms` option is added (example: "25")
# - JAVA_MAX_INITIAL_MEM: Is used when no `-Xms` option is given in JAVA_OPTS.
# This is used to calculate the maximum value of the initial heap memory. If used in
# a container without any memory constraints for the container then this option has
# no effect. If there is a memory constraint then `-Xms` is limited to the value set
# here. The default is 4096MB which means the calculated value of `-Xms` never will
# be greater than 4096MB. The value of this variable is expressed in MB (example: "4096")
# - JAVA_DIAGNOSTICS: Set this to get some diagnostics information to standard output
# when things are happening. This option, if set to true, will set
# `-XX:+UnlockDiagnosticVMOptions`. Disabled by default (example: "true").
# - JAVA_DEBUG: If set remote debugging will be switched on. Disabled by default (example:
# true").
# - JAVA_DEBUG_PORT: Port used for remote debugging. Defaults to 5005 (example: "8787").
# - CONTAINER_CORE_LIMIT: A calculated core limit as described in
# https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt. (example: "2")
# - CONTAINER_MAX_MEMORY: Memory limit given to the container (example: "1024").
# - GC_MIN_HEAP_FREE_RATIO: Minimum percentage of heap free after GC to avoid expansion.
# (example: "20")
# - GC_MAX_HEAP_FREE_RATIO: Maximum percentage of heap free after GC to avoid shrinking.
# (example: "40")
# - GC_TIME_RATIO: Specifies the ratio of the time spent outside the garbage collection.
# (example: "4")
# - GC_ADAPTIVE_SIZE_POLICY_WEIGHT: The weighting given to the current GC time versus
# previous GC times. (example: "90")
# - GC_METASPACE_SIZE: The initial metaspace size. (example: "20")
# - GC_MAX_METASPACE_SIZE: The maximum metaspace size. (example: "100")
# - GC_CONTAINER_OPTIONS: Specify Java GC to use. The value of this variable should
# contain the necessary JRE command-line options to specify the required GC, which
# will override the default of `-XX:+UseParallelGC` (example: -XX:+UseG1GC).
# - HTTPS_PROXY: The location of the https proxy. (example: "myuser@127.0.0.1:8080")
# - HTTP_PROXY: The location of the http proxy. (example: "myuser@127.0.0.1:8080")
# - NO_PROXY: A comma separated lists of hosts, IP addresses or domains that can be
# accessed directly. (example: "foo.example.com,bar.example.com")
#
# You can find more information about the UBI base runtime images and their configuration here:
# https://rh-openjdk.github.io/redhat-openjdk-containers/
###
FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:1.24
ENV LANGUAGE='en_US:en'
COPY build/lib/* /deployments/lib/
COPY build/*-runner.jar /deployments/quarkus-run.jar
EXPOSE 8080
USER 185
ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]
@@ -0,0 +1,29 @@
####
# This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode.
#
# Before building the container image run:
#
# ./gradlew build -Dquarkus.native.enabled=true
#
# Then, build the image with:
#
# docker build -f src/main/docker/Dockerfile.native -t quarkus/backcore .
#
# Then run the container using:
#
# docker run -i --rm -p 8080:8080 quarkus/backcore
#
# The ` registry.access.redhat.com/ubi9/ubi-minimal:9.7` base image is based on UBI 9.
# To use UBI 8, switch to `quay.io/ubi8/ubi-minimal:8.10`.
###
FROM registry.access.redhat.com/ubi9/ubi-minimal:9.7
WORKDIR /work/
RUN chown 1001 /work \
&& chmod "g+rwX" /work \
&& chown 1001:root /work
COPY --chown=1001:root --chmod=0755 build/*-runner /work/application
EXPOSE 8080
USER 1001
ENTRYPOINT ["./application", "-Dquarkus.http.host=0.0.0.0"]
@@ -0,0 +1,32 @@
####
# This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode.
# It uses a micro base image, tuned for Quarkus native executables.
# It reduces the size of the resulting container image.
# Check https://quarkus.io/guides/quarkus-runtime-base-image for further information about this image.
#
# Before building the container image run:
#
# ./gradlew build -Dquarkus.native.enabled=true
#
# Then, build the image with:
#
# docker build -f src/main/docker/Dockerfile.native-micro -t quarkus/backcore .
#
# Then run the container using:
#
# docker run -i --rm -p 8080:8080 quarkus/backcore
#
# The `quay.io/quarkus/ubi9-quarkus-micro-image:2.0` base image is based on UBI 9.
# To use UBI 8, switch to `quay.io/quarkus/quarkus-micro-image:2.0`.
###
FROM quay.io/quarkus/ubi9-quarkus-micro-image:2.0
WORKDIR /work/
RUN chown 1001 /work \
&& chmod "g+rwX" /work \
&& chown 1001:root /work
COPY --chown=1001:root --chmod=0755 build/*-runner /work/application
EXPOSE 8080
USER 1001
ENTRYPOINT ["./application", "-Dquarkus.http.host=0.0.0.0"]
@@ -0,0 +1,5 @@
quarkus:
http:
port: 8081
application:
name: rule-service
@@ -0,0 +1,11 @@
package de.nowchess.rules.config
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.scala.DefaultScalaModule
import io.quarkus.jackson.ObjectMapperCustomizer
import jakarta.inject.Singleton
@Singleton
class JacksonConfig extends ObjectMapperCustomizer:
def customize(mapper: ObjectMapper): Unit =
mapper.registerModule(DefaultScalaModule)
@@ -0,0 +1,128 @@
package de.nowchess.rules.dto
import de.nowchess.api.board.{Board, CastlingRights, Color, Piece, PieceType, Square}
import de.nowchess.api.game.GameContext
import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
object DtoMapper:
def toColor(s: String): Either[String, Color] = s match
case "White" => Right(Color.White)
case "Black" => Right(Color.Black)
case other => Left(s"Unknown color: $other")
def toPieceType(s: String): Either[String, PieceType] = s match
case "Pawn" => Right(PieceType.Pawn)
case "Knight" => Right(PieceType.Knight)
case "Bishop" => Right(PieceType.Bishop)
case "Rook" => Right(PieceType.Rook)
case "Queen" => Right(PieceType.Queen)
case "King" => Right(PieceType.King)
case other => Left(s"Unknown piece type: $other")
def toSquare(s: String): Either[String, Square] =
Square.fromAlgebraic(s).toRight(s"Invalid square: $s")
def toMoveType(dto: MoveDto): Either[String, MoveType] = dto.moveType match
case "normal" => Right(MoveType.Normal(isCapture = false))
case "capture" => Right(MoveType.Normal(isCapture = true))
case "castleKingside" => Right(MoveType.CastleKingside)
case "castleQueenside" => Right(MoveType.CastleQueenside)
case "enPassant" => Right(MoveType.EnPassant)
case "promotion" =>
dto.promotionPiece.toRight("Missing promotion piece").flatMap(toPromotionPiece).map(MoveType.Promotion(_))
case other => Left(s"Unknown move type: $other")
def toMove(dto: MoveDto): Either[String, Move] =
for
from <- toSquare(dto.from)
to <- toSquare(dto.to)
moveType <- toMoveType(dto)
yield Move(from, to, moveType)
def toBoard(pieces: List[PieceOnSquareDto]): Either[String, Board] =
sequenceList(pieces.map(toPieceOnSquare)).map(entries => Board(entries.toMap))
def toGameContext(dto: GameContextDto): Either[String, GameContext] =
for
board <- toBoard(dto.board)
turn <- toColor(dto.turn)
epSquare <- sequenceOpt(dto.enPassantSquare.map(toSquare))
moves <- sequenceList(dto.moves.map(toMove))
initialBoard <- toBoard(dto.initialBoard)
yield GameContext(
board = board,
turn = turn,
castlingRights = toCastlingRights(dto.castlingRights),
enPassantSquare = epSquare,
halfMoveClock = dto.halfMoveClock,
moves = moves,
initialBoard = initialBoard,
)
def fromMove(move: Move): MoveDto =
val (moveType, promotionPiece) = fromMoveType(move.moveType)
MoveDto(move.from.toString, move.to.toString, moveType, promotionPiece)
def fromBoard(board: Board): List[PieceOnSquareDto] =
board.pieces.toList.map { case (sq, p) =>
PieceOnSquareDto(sq.toString, p.color.label, p.pieceType.label)
}
def fromGameContext(ctx: GameContext): GameContextDto =
GameContextDto(
board = fromBoard(ctx.board),
turn = ctx.turn.label,
castlingRights = fromCastlingRights(ctx.castlingRights),
enPassantSquare = ctx.enPassantSquare.map(_.toString),
halfMoveClock = ctx.halfMoveClock,
moves = ctx.moves.map(fromMove),
initialBoard = fromBoard(ctx.initialBoard),
)
private def toPromotionPiece(s: String): Either[String, PromotionPiece] = s match
case "Queen" => Right(PromotionPiece.Queen)
case "Rook" => Right(PromotionPiece.Rook)
case "Bishop" => Right(PromotionPiece.Bishop)
case "Knight" => Right(PromotionPiece.Knight)
case other => Left(s"Unknown promotion piece: $other")
private def fromMoveType(mt: MoveType): (String, Option[String]) = mt match
case MoveType.Normal(false) => ("normal", None)
case MoveType.Normal(true) => ("capture", None)
case MoveType.CastleKingside => ("castleKingside", None)
case MoveType.CastleQueenside => ("castleQueenside", None)
case MoveType.EnPassant => ("enPassant", None)
case MoveType.Promotion(pp) => ("promotion", Some(fromPromotionPiece(pp)))
private def fromPromotionPiece(pp: PromotionPiece): String = pp match
case PromotionPiece.Queen => "Queen"
case PromotionPiece.Rook => "Rook"
case PromotionPiece.Bishop => "Bishop"
case PromotionPiece.Knight => "Knight"
private def toCastlingRights(dto: CastlingRightsDto): CastlingRights =
CastlingRights(dto.whiteKingSide, dto.whiteQueenSide, dto.blackKingSide, dto.blackQueenSide)
private def fromCastlingRights(cr: CastlingRights): CastlingRightsDto =
CastlingRightsDto(cr.whiteKingSide, cr.whiteQueenSide, cr.blackKingSide, cr.blackQueenSide)
private def toPieceOnSquare(dto: PieceOnSquareDto): Either[String, (Square, Piece)] =
for
sq <- toSquare(dto.square)
color <- toColor(dto.color)
pieceType <- toPieceType(dto.pieceType)
yield sq -> Piece(color, pieceType)
private def sequenceList[R](list: List[Either[String, R]]): Either[String, List[R]] =
list.foldLeft[Either[String, List[R]]](Right(List.empty)) {
case (Right(acc), Right(v)) => Right(acc :+ v)
case (Left(e), _) => Left(e)
case (_, Left(e)) => Left(e)
}
private def sequenceOpt[R](opt: Option[Either[String, R]]): Either[String, Option[R]] =
opt match
case None => Right(None)
case Some(Right(v)) => Right(Some(v))
case Some(Left(e)) => Left(e)
@@ -0,0 +1,37 @@
package de.nowchess.rules.dto
case class PieceOnSquareDto(square: String, color: String, pieceType: String)
case class CastlingRightsDto(
whiteKingSide: Boolean,
whiteQueenSide: Boolean,
blackKingSide: Boolean,
blackQueenSide: Boolean,
)
case class MoveDto(
from: String,
to: String,
moveType: String,
promotionPiece: Option[String],
)
case class GameContextDto(
board: List[PieceOnSquareDto],
turn: String,
castlingRights: CastlingRightsDto,
enPassantSquare: Option[String],
halfMoveClock: Int,
moves: List[MoveDto],
initialBoard: List[PieceOnSquareDto],
)
case class ContextRequest(context: GameContextDto)
case class ContextSquareRequest(context: GameContextDto, square: String)
case class ContextMoveRequest(context: GameContextDto, move: MoveDto)
case class MovesResponse(moves: List[MoveDto])
case class BooleanResponse(result: Boolean)
@@ -0,0 +1,94 @@
package de.nowchess.rules.resource
import de.nowchess.rules.dto.*
import de.nowchess.rules.sets.DefaultRules
import jakarta.enterprise.context.ApplicationScoped
import jakarta.ws.rs.*
import jakarta.ws.rs.core.MediaType
@Path("/api/rules")
@ApplicationScoped
class RuleSetResource:
private val rules = DefaultRules
// scalafix:off DisableSyntax.throw
private def parse[T](e: Either[String, T]): T = e match
case Right(v) => v
case Left(msg) => throw BadRequestException(msg)
// scalafix:on DisableSyntax.throw
@POST
@Path("/candidate-moves")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def candidateMoves(req: ContextSquareRequest): MovesResponse =
val ctx = parse(DtoMapper.toGameContext(req.context))
val sq = parse(DtoMapper.toSquare(req.square))
MovesResponse(rules.candidateMoves(ctx)(sq).map(DtoMapper.fromMove))
@POST
@Path("/legal-moves")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def legalMoves(req: ContextSquareRequest): MovesResponse =
val ctx = parse(DtoMapper.toGameContext(req.context))
val sq = parse(DtoMapper.toSquare(req.square))
MovesResponse(rules.legalMoves(ctx)(sq).map(DtoMapper.fromMove))
@POST
@Path("/all-legal-moves")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def allLegalMoves(req: ContextRequest): MovesResponse =
MovesResponse(rules.allLegalMoves(parse(DtoMapper.toGameContext(req.context))).map(DtoMapper.fromMove))
@POST
@Path("/is-check")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def isCheck(req: ContextRequest): BooleanResponse =
BooleanResponse(rules.isCheck(parse(DtoMapper.toGameContext(req.context))))
@POST
@Path("/is-checkmate")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def isCheckmate(req: ContextRequest): BooleanResponse =
BooleanResponse(rules.isCheckmate(parse(DtoMapper.toGameContext(req.context))))
@POST
@Path("/is-stalemate")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def isStalemate(req: ContextRequest): BooleanResponse =
BooleanResponse(rules.isStalemate(parse(DtoMapper.toGameContext(req.context))))
@POST
@Path("/is-insufficient-material")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def isInsufficientMaterial(req: ContextRequest): BooleanResponse =
BooleanResponse(rules.isInsufficientMaterial(parse(DtoMapper.toGameContext(req.context))))
@POST
@Path("/is-fifty-move-rule")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def isFiftyMoveRule(req: ContextRequest): BooleanResponse =
BooleanResponse(rules.isFiftyMoveRule(parse(DtoMapper.toGameContext(req.context))))
@POST
@Path("/is-threefold-repetition")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def isThreefoldRepetition(req: ContextRequest): BooleanResponse =
BooleanResponse(rules.isThreefoldRepetition(parse(DtoMapper.toGameContext(req.context))))
@POST
@Path("/apply-move")
@Consumes(Array(MediaType.APPLICATION_JSON))
@Produces(Array(MediaType.APPLICATION_JSON))
def applyMove(req: ContextMoveRequest): GameContextDto =
val ctx = parse(DtoMapper.toGameContext(req.context))
val move = parse(DtoMapper.toMove(req.move))
DtoMapper.fromGameContext(rules.applyMove(ctx)(move))