diff --git a/wco/apx/apx.js b/wco/apx/apx.js
index 6954baf..2c52fe3 100644
--- a/wco/apx/apx.js
+++ b/wco/apx/apx.js
@@ -511,3 +511,113 @@ apx.update = async () => {
   apx.save(); //store in local the modification
 };
 apx.ready(apx.update); //2nd param optional=> true mean does not wait same if apx.lock is set
+
+apx.indexedDB = apx.indexedDB || {};
+
+apx.indexedDB.set = async (db, storeName, keyPath, key, value) => {
+    return new Promise((resolve, reject) => {
+        const request = indexedDB.open(db, 1);
+
+        request.onupgradeneeded = (event) => {
+            const db = event.target.result;
+
+            if (window.threadsObj) {
+                for (const threadId of Object.keys(window.threadsObj)) {
+                    if (!db.objectStoreNames.contains(threadId)) {
+                        db.createObjectStore(threadId, { keyPath: keyPath });
+                    };
+                };
+            };
+        };
+
+        request.onsuccess = (event) => {
+            const db = event.target.result;
+
+            if (!db.objectStoreNames.contains(storeName)) {
+                return resolve();
+            };
+
+            const transaction = db.transaction(storeName, "readwrite");
+            const store = transaction.objectStore(storeName);
+            
+            const putRequest = store.put({ timestamp: key, value: value });
+            putRequest.onsuccess = () => resolve();
+            putRequest.onerror = (error) => reject(error);
+        };
+
+        request.onerror = (error) => reject(error);
+    });
+};
+
+apx.indexedDB.get =  async (db, storeName, keyPath, key) => {
+    return new Promise((resolve, reject) => {
+        const request = indexedDB.open(db, 1);
+
+        request.onupgradeneeded = (event) => {
+            const db = event.target.result;
+            
+            if (window.threadsObj) {
+                for (const threadId of Object.keys(window.threadsObj)) {
+                    if (!db.objectStoreNames.contains(threadId)) {
+                        db.createObjectStore(threadId, { keyPath: keyPath });
+                    };
+                };
+            };
+        };
+
+        request.onsuccess = (event) => {
+            const db = event.target.result;
+
+            if (!db.objectStoreNames.contains(storeName)) {
+                return resolve(null);
+            };
+
+            const transaction = db.transaction(storeName, "readonly");
+            const store = transaction.objectStore(storeName);
+            const getRequest = store.get(key);
+
+            getRequest.onsuccess = () => {
+                resolve(getRequest.result ? getRequest.result.value : null);
+            };
+
+            getRequest.onerror = () => resolve(null);
+        };
+
+        request.onerror = (error) => reject(error);
+    });
+};
+
+apx.indexedDB.del = async (db, storeName, keyPath, key) => {
+    return new Promise((resolve, reject) => {
+        const request = indexedDB.open(db, 1);
+
+        request.onupgradeneeded = (event) => {
+            const db = event.target.result;
+
+            if (window.threadsObj) {
+                for (const threadId of Object.keys(window.threadsObj)) {
+                    if (!db.objectStoreNames.contains(threadId)) {
+                        db.createObjectStore(threadId, { keyPath: keyPath });
+                    };
+                };
+            };
+        };
+
+        request.onsuccess = (event) => {
+            const db = event.target.result;
+
+            if (!db.objectStoreNames.contains(storeName)) {
+                return resolve();
+            };
+
+            const transaction = db.transaction(storeName, "readwrite");
+            const store = transaction.objectStore(storeName);
+
+            const deleteRequest = store.delete(key);
+            deleteRequest.onsuccess = () => resolve();
+            deleteRequest.onerror = (error) => reject(error);
+        };
+
+        request.onerror = (error) => reject(error);
+    });
+};
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