[#96] Fix issues with module imports in Browser Environments

mithunsatheesh · Mithun Satheesh · commit 831f0e9bb19b · 2020-12-13T12:40:18.000+05:30
- Issue with module imports failing is fixed with this.
- Polyfill Process.nextick issues fixed in browser context.
- Added both web and node.js examples in examples folder.
- Cleaned iup unwanted dependencies.
diff --git a/.babelrc b/.babelrc
@@ -7,9 +7,9 @@
           "edge": "17",
           "firefox": "60",
           "chrome": "67",
-          "safari": "11.1",
+          "safari": "11.1"
         },
-        "useBuiltIns": "usage",
+        "useBuiltIns": "usage"
       }
     ]
   ]
diff --git a/dist/node-rules.min.js b/dist/node-rules.min.js
diff --git a/examples/node.js/1.SimpleRule.js b/examples/node.js/1.SimpleRule.js
@@ -1,4 +1,4 @@
-var RuleEngine = require('../index');
+var RuleEngine = require('../../index');
 /* Sample Rule to block a transaction if its below 500 */
 var rule = {
     "condition": function(R) {
diff --git a/examples/node.js/2.MultipleRules.js b/examples/node.js/2.MultipleRules.js
@@ -1,4 +1,4 @@
-var RuleEngine = require('../index');
+var RuleEngine = require('../../index');
 /* Set of Rules to be applied
 First blocks a transaction if less than 500
 Second blocks a debit card transaction.*/
diff --git a/examples/node.js/3.CascadingRules.js b/examples/node.js/3.CascadingRules.js
@@ -1,4 +1,4 @@
-var RuleEngine = require('../index');
+var RuleEngine = require('../../index');
 /* Here we can see a rule which upon matching its condition,
 does some processing and passes it to other rules for processing */
 var rules = [{
diff --git a/examples/node.js/4.PrioritizedRules.js b/examples/node.js/4.PrioritizedRules.js
@@ -1,4 +1,4 @@
-var RuleEngine = require('../index');
+var RuleEngine = require('../../index');
 /* Set of Rules to be applied */
 var rules = [{
     "priority": 4,
diff --git a/examples/node.js/5.RecurssionWithRules.js b/examples/node.js/5.RecurssionWithRules.js
@@ -1,4 +1,4 @@
-var RuleEngine = require('../index');
+var RuleEngine = require('../../index');
 /* Sample Rule to block a transaction if its below 500 */
 var rule = {
     "condition": function(R) {
diff --git a/examples/node.js/6.MoreRulesAndFacts.js b/examples/node.js/6.MoreRulesAndFacts.js
@@ -1,5 +1,5 @@
 var colors = require('colors');
-var RuleEngine = require('../index');
+var RuleEngine = require('../../index');
 var rules = [
     /**** Rule 1 ****/
     {
diff --git a/examples/web/index.html b/examples/web/index.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Node Rules Web example</title>
+  <script src="../../dist/node-rules.min.js"></script>
+</head>
+<body>
+
+  <!-- 
+  ==== READ THIS IF YOU ARE FINDING TROUBLE TO TO RUN THIS! ====
+  1. Install "Live Server" plugin on VS Code.
+  2. Right click on this file in the sidebar of Vs Code.
+  3. Choose open with Live Server option and bingo you are done.
+  -->
+  
+  <script type="text/javascript">
+
+    /* Creating Rule Engine instance */
+    var R = new NodeRules();
+
+    /* Add a rule */
+    var rule = {
+        "condition": function(R) {
+            console.log(this);
+            R.when(this.transactionTotal < 500);
+        },
+        "consequence": function(R) {
+            this.result = false;
+            this.reason = "The transaction was blocked as it was less than 500";
+            R.stop();
+        }
+    };
+
+    /* Register Rule */
+    R.register(rule);
+
+    /* Add a Fact with less than 500 as transaction, and this should be blocked */
+    var fact = {
+        "name": "user4",
+        "application": "MOB2",
+        "transactionTotal": 400,
+        "cardType": "Credit Card"
+    };
+
+    /* Check if the engine blocks it! */
+    R.execute(fact, function (data) {
+        if (data.result) {
+            console.log("Valid transaction");
+        } else {
+            console.log("Blocked Reason:" + data.reason);
+        }
+    });
+
+  </script>
+
+</body>
+</html>
diff --git a/lib/node-rules.js b/lib/node-rules.js
@@ -105,7 +105,7 @@
         })(0);
     };
     RuleEngine.prototype.nextTick = function(callbackFn) {
-        if (process && process.nextTick) {
+        if (typeof process !== 'undefined' && process.nextTick) {
             process.nextTick(callbackFn);
         } else {
             setTimeout(callbackFn, 0);
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
diff --git a/webpack.config.js b/webpack.config.js

Original file line number	Diff line number	Diff line change
`@@ -7,9 +7,9 @@`
`7`	`7`	`"edge": "17",`
`8`	`8`	`"firefox": "60",`
`9`	`9`	`"chrome": "67",`
`10`		`- "safari": "11.1",`
	`10`	`+ "safari": "11.1"`
`11`	`11`	`},`
`12`		`- "useBuiltIns": "usage",`
	`12`	`+ "useBuiltIns": "usage"`
`13`	`13`	`}`
`14`	`14`	`]`
`15`	`15`	`]`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-var RuleEngine = require('../index');`
	`1`	`+var RuleEngine = require('../../index');`
`2`	`2`	`/* Sample Rule to block a transaction if its below 500 */`
`3`	`3`	`var rule = {`
`4`	`4`	`"condition": function(R) {`
Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`var colors = require('colors');`
`2`		`-var RuleEngine = require('../index');`
	`2`	`+var RuleEngine = require('../../index');`
`3`	`3`	`var rules = [`
`4`	`4`	`/** Rule 1 **/`
`5`	`5`	`{`