Moved from Gradle to bld

examples/gradle/.gitattributes

@@ -0,0 +1,6 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# These are explicitly windows files and should use crlf
+*.bat           text eol=crlf
+

examples/gradle/.gitignore

@@ -0,0 +1,5 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build

examples/gradle/README.md

@@ -0,0 +1,18 @@
+## Kotlin Example
+To compile & run the Kotlin example:
+
+```text
+./gradlew run
+./gradlew run --args="btc"
+./gradlew run --args="eth eur"
+```
+
+## Java Example
+
+To compile & run the Java example:
+
+```text
+./gradlew run
+./gradlew runJava --args="btc"
+./gradlew runJava --args="eth eur"
+```

examples/gradle/bin/main/com/example/CryptoPriceExample.kt

@@ -0,0 +1,47 @@
+package com.example
+
+import net.thauvin.erik.crypto.CryptoException
+import net.thauvin.erik.crypto.CryptoPrice.Companion.apiCall
+import net.thauvin.erik.crypto.CryptoPrice.Companion.buyPrice
+import net.thauvin.erik.crypto.CryptoPrice.Companion.sellPrice
+import net.thauvin.erik.crypto.CryptoPrice.Companion.spotPrice
+import org.json.JSONObject
+import java.io.IOException
+
+fun main(args: Array<String>) {
+    try {
+        if (args.isNotEmpty()) {
+            val price = if (args.size == 2) spotPrice(args[0], args[1]) else spotPrice(args[0])
+            println("The current ${price.base} price is ${price.toCurrency()}")
+        } else {
+            // Get current Bitcoin spot price.
+            val price = spotPrice("BTC")
+            println("The current Bitcoin price is ${price.toCurrency()}")
+
+            println()
+
+            // Get current Ethereum sell price in Pound sterling.
+            val gbpPrice = sellPrice("ETH", "GBP")
+            println("The current Ethereum sell price is ${gbpPrice.toCurrency()}")
+
+            // Get current Litecoin buy price in Euro.
+            val euroPrice = buyPrice("LTC", "EUR")
+            println("The current Litecoin buy price is ${euroPrice.toCurrency()}")
+
+            println()
+
+            // Get exchange rate using API.
+            // See: https://docs.cloud.coinbase.com/sign-in-with-coinbase/docs/api-exchange-rates
+            val response = apiCall(listOf("exchange-rates"), mapOf("currency" to "usd"))
+            val rates = JSONObject(response).getJSONObject("data").getJSONObject("rates")
+            println("The USD-EUR exchange rate is: ${rates.getString("EUR")}")
+        }
+    } catch (e: CryptoException) {
+        System.err.println("HTTP Status Code: ${e.statusCode}")
+        System.err.println(e.message)
+    } catch (e: IllegalArgumentException) {
+        System.err.println("Could not display the specified currency: ${args[1]}")
+    } catch (e: IOException) {
+        System.err.println(e.message)
+    }
+}

examples/gradle/build.gradle.kts

@@ -0,0 +1,41 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    id("application")
+    id("com.github.ben-manes.versions") version "0.49.0"
+    kotlin("jvm") version "1.9.10"
+}
+
+defaultTasks(ApplicationPlugin.TASK_RUN_NAME)
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+    maven { url = uri("https://oss.sonatype.org/content/repositories/snapshots") }
+}
+
+dependencies {
+    implementation("net.thauvin.erik:cryptoprice:1.0.1")
+    implementation("org.json:json:20231013")
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+}
+
+application {
+    mainClass.set("com.example.CryptoPriceExampleKt")
+}
+
+tasks {
+    withType<KotlinCompile>().configureEach {
+        kotlinOptions.jvmTarget = java.targetCompatibility.toString()
+    }
+
+    register<JavaExec>("runJava") {
+        group = "application"
+        mainClass.set("com.example.CryptoPriceSample")
+        classpath = sourceSets.main.get().runtimeClasspath
+    }
+}

examples/gradle/gradlew

@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

examples/gradle/gradlew.bat

@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

examples/gradle/settings.gradle.kts

@@ -0,0 +1,10 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * The settings file is used to specify which projects to include in your build.
+ *
+ * Detailed information about configuring a multi-project build in Gradle can be found
+ * in the user manual at https://docs.gradle.org/6.5.1/userguide/multi_project_builds.html
+ */
+
+rootProject.name = "examples"

examples/gradle/src/main/java/com/example/CryptoPriceSample.java

@@ -0,0 +1,58 @@
+package com.example;
+
+import net.thauvin.erik.crypto.CryptoException;
+import net.thauvin.erik.crypto.CryptoPrice;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Currency;
+import java.util.List;
+import java.util.Locale;
+
+public class CryptoPriceSample {
+    public static void main(final String[] args) {
+        try {
+            if (args.length > 0) {
+                final String currency;
+                if (args.length == 2) {
+                    currency = args[1];
+                } else {
+                    currency = Currency.getInstance(Locale.getDefault()).getCurrencyCode();
+                }
+                final var price = CryptoPrice.spotPrice(args[0], currency);
+                System.out.println("The current " + price.getBase() + " price is " + price.toCurrency());
+            } else {
+                // Get current Bitcoin spot price.
+                final var price = CryptoPrice.spotPrice("BTC");
+                System.out.println("The current Bitcoin price is " + price.toCurrency());
+
+                System.out.println();
+
+                // Get current Ethereum buy price in Pound sterling.
+                final var gbpPrice = CryptoPrice.buyPrice("ETH", "GBP");
+                System.out.println("The current Ethereum buy price is " + gbpPrice.toCurrency());
+
+                // Get current Litecoin sell price in Euros.
+                final var euroPrice = CryptoPrice.sellPrice("LTC", "EUR");
+                System.out.println("The current Litecoin sell price is " + euroPrice.toCurrency());
+
+                System.out.println();
+
+                // Get exchange rate using API.
+                // See: https://docs.cloud.coinbase.com/sign-in-with-coinbase/docs/api-exchange-rates
+                final var response = CryptoPrice.apiCall(List.of("exchange-rates"),
+                        Collections.singletonMap("currency", "USD"));
+                final var rates = new JSONObject(response).getJSONObject("data").getJSONObject("rates");
+                System.out.println("The USD-EUR exchange rate is: " + rates.getString("EUR"));
+            }
+        } catch (CryptoException e) {
+            System.err.println("HTTP Status Code: " + e.getStatusCode());
+            System.err.println(e.getMessage() + " (" + e.getId() + ')');
+        } catch (IllegalArgumentException e) {
+            System.err.println("Could not display the specified currency: " + args[1]);
+        } catch (IOException e) {
+            System.err.println(e.getMessage());
+        }
+    }
+}

examples/gradle/src/main/kotlin/com/example/CryptoPriceExample.kt

@@ -0,0 +1,49 @@
+package com.example
+
+import net.thauvin.erik.crypto.CryptoException
+import net.thauvin.erik.crypto.CryptoPrice.Companion.apiCall
+import net.thauvin.erik.crypto.CryptoPrice.Companion.buyPrice
+import net.thauvin.erik.crypto.CryptoPrice.Companion.sellPrice
+import net.thauvin.erik.crypto.CryptoPrice.Companion.spotPrice
+import org.json.JSONObject
+import java.io.IOException
+import java.util.*
+
+fun main(args: Array<String>) {
+    try {
+        if (args.isNotEmpty()) {
+            val currency = if (args.size == 2) args[1] else Currency.getInstance(Locale.getDefault()).currencyCode
+            val price = spotPrice(args[0], currency)
+            println("The current ${price.base} price is ${price.toCurrency()}")
+        } else {
+            // Get current Bitcoin spot price.
+            val price = spotPrice("BTC")
+            println("The current Bitcoin price is ${price.toCurrency()}")
+
+            println()
+
+            // Get current Ethereum sell price in Pound sterling.
+            val gbpPrice = sellPrice("ETH", "GBP")
+            println("The current Ethereum sell price is ${gbpPrice.toCurrency()}")
+
+            // Get current Litecoin buy price in Euro.
+            val euroPrice = buyPrice("LTC", "EUR")
+            println("The current Litecoin buy price is ${euroPrice.toCurrency()}")
+
+            println()
+
+            // Get exchange rate using API.
+            // See: https://docs.cloud.coinbase.com/sign-in-with-coinbase/docs/api-exchange-rates
+            val response = apiCall(listOf("exchange-rates"), mapOf("currency" to "usd"))
+            val rates = JSONObject(response).getJSONObject("data").getJSONObject("rates")
+            println("The USD-EUR exchange rate is: ${rates.getString("EUR")}")
+        }
+    } catch (e: CryptoException) {
+        System.err.println("HTTP Status Code: ${e.statusCode}")
+        System.err.println("${e.message} (${e.id})")
+    } catch (e: IllegalArgumentException) {
+        System.err.println("Could not display the specified currency: ${args[1]}")
+    } catch (e: IOException) {
+        System.err.println(e.message)
+    }
+}