Request for Creating a singleton class

.gitignore

@@ -0,0 +1,14 @@
+# Created by .ignore support plugin (hsz.mobi)
+### Example user template template
+### Example user template
+
+# IntelliJ project files
+.idea
+bin
+boot
+conf
+lib
+*.iml
+.DS_Store
+out
+gen

LICENSE

@@ -1,4 +1,4 @@
-The MIT License (MIT)
+MIT License
 
 Copyright (c) 2016 Iyanu Adelekan
 
@@ -18,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+SOFTWARE.

README.md

@@ -1,6 +1,6 @@
-# PaystackJava
-A Java based API wrapper for the Paystack API
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
 
+# PaystackJava
 
 A Java API wrapper for the facilitation of quick and easy development and integration of Java based applications with the the Paystack API.
 
@@ -68,20 +68,7 @@ new Pages().createPage(query);
 ApiConnection.shutDown();
 ```
 
-## NOTE
-### PaystackJava utilizes a Keys.json file for the management of api key resources. This file must be placed in your root project directory and has the following structure:
-```json
-{
-  "API_KEYS":{
-    "KEY_IN_USE": "sk_test_xxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
-    "TEST_SECRET_KEY": "sk_test_xxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
-    "TEST_PUBLIC_KEY": "pk_test_xxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
-    "LIVE_SECRET_KEY": "sk_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
-    "LIVE_PUBLIC_KEY": "pk_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-  }
-}
-```
-### The value attached to KEY_IN_USE is the value used for Authorization by PaystackJava
+**NOTE**: PaystackJava reads the API key it uses for authorization via a 'PAYSTACK_API_KEY' environment variable. Ensure you define the variable for your project as necessary.
 
 ## Utilities at a glance
 ### ApiConnection {Class}:
@@ -144,4 +131,24 @@ ApiConnection.shutDown();
 License
 ----
 
-MIT License
+The MIT License (MIT)
+
+Copyright (c) 2016 Iyanu Adelekan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

pom.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.iyanuadelekan</groupId>
+    <artifactId>paystackjava</artifactId>
+    <packaging>jar</packaging>
+    <version>2.0.0</version>
+
+    <name>PaystackJava</name>
+    <description>A Java based API wrapper for the Paystack API 💰💸💰💰</description>
+    <url>https://github.com/SeunAdelekan/PaystackJava</url>
+
+    <licenses>
+        <license>
+            <name>The MIT License (MIT)</name>
+            <url>https://github.com/SeunAdelekan/PaystackJava/blob/master/LICENSE</url>
+            <distribution>repo</distribution>
+        </license>
+    </licenses>
+
+    <scm>
+        <connection>scm:git:https://github.com/SeunAdelekan/PaystackJava.git</connection>
+        <tag>HEAD</tag>
+        <url>https://github.com/SeunAdelekan/PaystackJava</url>
+    </scm>
+
+    <build>
+        <sourceDirectory>src</sourceDirectory>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.mashape.unirest</groupId>
+            <artifactId>unirest-java</artifactId>
+            <version>1.4.9</version>
+        </dependency>
+        <dependency>
+            <groupId>org.json</groupId>
+            <artifactId>json</artifactId>
+            <version>20250517</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.2</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

libs/Definitions.java → src/me/iyanuadelekan/paystackjava/constants/Definitions.java

@@ -3,15 +3,14 @@
 /**
  * @author Iyanu Adelekan on 17/07/2016.
  */
-class Definitions {
+public class Definitions {
 
     /**
-     * The following are URL definitions for the Paystack API.
-     * All URLs are RESTful endpoints and as such modification of any
-     * of these URL resources will lead to problems with querying the Paystack API.
-     * Only modify if you know what you are doing.
+     * The following are URL definitions for the Paystack API. All URLs are
+     * RESTful endpoints and as such modification of any of these URL resources
+     * will lead to problems with querying the Paystack API. Only modify if you
+     * know what you are doing.
      */
-
     private final static String BASE_API_ENDPOINT = "https://api.paystack.co";
 
     public static final String PAYSTACK_INLINE_PAYSTACK_STANDARD = BASE_API_ENDPOINT + "/transaction/initialize";