expandVar for JSON objects

CHANGES_NEXT_RELEASE

@@ -1,3 +1,4 @@
+- Add: allow use expandVar with JSON objects (#703)
 - Add: apply expandVar with JSON.parse to all fields of all actions (sms, smpp, email, post, update) (#746)
 - Fix: check domain before access domain
 - Fix: expandVar return a 'null' instead of null (#746)

lib/myutils.js

@@ -51,56 +51,67 @@ function logErrorIf(err, message, context) {
     }
 }
 
-function expandVar(val, mapping, trycast) {
-    if (typeof val === 'string') {
-        var expanded = false;
-        var valObj = null;
-        var uniqueString = false;
-        Object.keys(mapping).forEach(function(p) {
-            if (typeof mapping[p] === 'string' && Object.keys(mapping).length === 1) {
-                uniqueString = true;
-            }
-            val = val.replace(new RegExp('\\$\\{' + p + '\\}', 'g'), mapping[p]);
-            // javascript replace always return a string: we need to keep object value (#692)
-            if (!expanded && val === '[object Object]') {
-                valObj = mapping[p]; // for cases where mapping[p] is an object like { type: 'Point', coordinates: [] }
-                expanded = true;
-            }
-        });
-        if (valObj) {
-            val = valObj;
+function expandVarString(val, mapping, trycast) {
+    var expanded = false;
+    var valObj = null;
+    var uniqueString = false;
+    Object.keys(mapping).forEach(function(p) {
+        if (typeof mapping[p] === 'string' && Object.keys(mapping).length === 1) {
+            uniqueString = true;
         }
-        if (trycast && !uniqueString) {
-            try {
-                // Check if "${num}" and expand it as real value, non string (#362, #369)
-                var n = JSON.parse(val);
-                switch (typeof n) {
-                    case 'number':
-                    case 'boolean':
-                    case 'object': // for a json in a string like: "{\"type\":\"Point\"}"
-                        val = n;
-                        expanded = true;
-                        break;
-                    // default: keep val value
-                }
-            } catch (e) {
-                // keep val value
+        val = val.replace(new RegExp('\\$\\{' + p + '\\}', 'g'), mapping[p]);
+        // javascript replace always return a string: we need to keep object value (#692)
+        if (!expanded && val === '[object Object]') {
+            valObj = mapping[p]; // for cases where mapping[p] is an object like { type: 'Point', coordinates: [] }
+            expanded = true;
+        }
+    });
+    if (valObj) {
+        val = valObj;
+    }
+    if (trycast && !uniqueString) {
+        try {
+            // Check if "${num}" and expand it as real value, non string (#362, #369)
+            var n = JSON.parse(val);
+            switch (typeof n) {
+                case 'number':
+                case 'boolean':
+                case 'object': // for a json in a string like: "{\"type\":\"Point\"}"
+                    val = n;
+                    expanded = true;
+                    break;
+                // default: keep val value
             }
+        } catch (e) {
+            // keep val value
         }
-        if (!expanded) {
-            if (val !== 'null' || !uniqueString) {
-                // Set to 'null' all non expanded values (#469)
-                val = val.replace(/\$\{\w*\}/g, 'null');
-                if (val === 'null') {
-                    // val is just one value (non string value composes of several values) (#746)
-                    val = null;
-                }
+    }
+    if (!expanded) {
+        if (val !== 'null' || !uniqueString) {
+            // Set to 'null' all non expanded values (#469)
+            val = val.replace(/\$\{\w*\}/g, 'null');
+            if (val === 'null') {
+                // val is just one value (non string value composes of several values) (#746)
+                val = null;
             }
         }
     }
     return val;
 }
 
+function expandVar(val, mapping, trycast) {
+    if (typeof val === 'string') {
+        return expandVarString(val, mapping, trycast);
+    } else if (typeof val === 'object' && val !== null) {
+        // replace in each key value when a JSON object (#703)
+        Object.keys(val).forEach((key) => {
+            var v = expandVar(val[key], mapping, trycast);
+            val[key] = v;
+        });
+    }
+    return val;
+}
+
 function expandObject(templateObj, dictionary) {
     var res = {};
     if (templateObj && typeof templateObj === 'object') {

test/component/myutils_test.js

@@ -228,6 +228,18 @@ describe('Myutils', function() {
                 newStr.should.be.equal('666123123');
             });
         });
+        describe('When there are variables which is a string number to expand in a json object', function() {
+            it('should expand json object key values', function() {
+                var str = { type: 'Point', coordinates: ['${Lat}', '${Lon}'] },
+                    map = { Lat: '22', Lon: '33' },
+                    newStr;
+                newStr = myutils.expandVar(str, map, true);
+                should.exist(newStr);
+                newStr.type.should.be.equal('Point');
+                newStr.coordinates[0].should.be.equal(22);
+                newStr.coordinates[1].should.be.equal(33);
+            });
+        });
     });
     describe('#RequestHelper()', function() {
         describe('When there is a network problem', function() {