Init

src/index.ts

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+export * from './webStorage';

src/webStorage.ts

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+import {AES, enc} from 'crypto-js';
+
+export interface WebStorageOptions {
+    fieldName?: string;
+    encryptionKey?: string;
+    defaultValue?: any;
+}
+
+export function LocalStorage(opts: WebStorageOptions = {}) {
+    return storage(localStorage, opts);
+}
+
+export function SessionStorage(opts: WebStorageOptions = {}) {
+    return storage(sessionStorage, opts);
+}
+
+function storage(storageType: Storage, opts: WebStorageOptions = {}) {
+    return function(target: object, key: string) {
+        if(!opts.fieldName) opts.fieldName = key;
+
+        Object.defineProperty(target, key, {
+            get: function() {
+                let value = storageType.getItem(<string>opts.fieldName);
+                if(!value && opts.defaultValue != null) return opts.defaultValue;
+                if(value != null && opts.encryptionKey) value = AES.decrypt(JSON.parse(value), opts.encryptionKey).toString(enc.Utf8);
+                return JSON.parse(<string>value);
+            },
+            set: function(value) {
+                if(value != null && opts.encryptionKey) value = AES.encrypt(JSON.stringify(value), opts.encryptionKey).toString();
+                storageType.setItem(<string>opts.fieldName, JSON.stringify(value));
+            }
+        });
+    };
+}