diff --git a/src/main/common/api.js b/src/main/common/api.js
index 231e456..49fdb84 100644
--- a/src/main/common/api.js
+++ b/src/main/common/api.js
@@ -55,7 +55,7 @@ export default {
       }
       saveData(dbPath, dbData);
       return {
-        id: data.id,
+        id: data._id,
         ok: true,
         rev: '',
       }
@@ -102,15 +102,23 @@ export default {
       });
       saveData(dbPath, dbData);
       return docs.map(d => ({
-        id: d.id,
+        id: d._id,
         success: true,
         rev: '',
       }))
     },
     allDocs({key}) {
       const dbData = getData(dbPath);
-      const result = dbData.filter(d => d._id === key);
-      return result;
+      if (!key) {
+        return dbData;
+      }
+      if (typeof key === 'string') {
+        return dbData.filter(d => d._id.indexOf(key) >= 0);
+      }
+      if (Array.isArray(key)) {
+        return dbData.filter(d => key.indexOf(d._id) >= 0);
+      }
+      return [];
     }
   },
 
diff --git a/static/preload.js b/static/preload.js
index 23ddb71..1a0a552 100644
--- a/static/preload.js
+++ b/static/preload.js
@@ -173,6 +173,29 @@ window.utools = window.rubick = {
           result ? resolve(result) : reject();
         });
       })
+    },
+    allDocs(key) {
+      ipcRenderer.send('msg-trigger', {
+        type: 'db.allDocs',
+        key,
+      });
+      return new Promise((resolve, reject) => {
+        ipcRenderer.once(`msg-back-db.allDocs`, (e, result) => {
+          console.log(result);
+          result ? resolve(result) : reject();
+        });
+      })
+    },
+    bulkDocs(docs) {
+      ipcRenderer.send('msg-trigger', {
+        type: 'db.bulkDocs',
+        key,
+      });
+      return new Promise((resolve, reject) => {
+        ipcRenderer.once(`msg-back-db.bulkDocs`, (e, result) => {
+          result ? resolve(result) : reject();
+        });
+      })
     }
   },
   isDarkColors() {