fix: improve the add doc error

sdk/src/index.ts

@@ -31,7 +31,13 @@ export type {
     MutationResult,
     QueryResult,
 } from './store/types'
-export { addDoc, updateDoc, deleteDoc, queryDoc, getDoc } from './store/document_v2'
+export {
+    addDoc,
+    updateDoc,
+    deleteDoc,
+    queryDoc,
+    getDoc,
+} from './store/document_v2'
 
 export { SystemConfig, SystemStatus, Version } from './proto/db3_base'
 export {

sdk/src/store/document_v2.ts

@@ -225,6 +225,13 @@ export async function updateDoc(
     }
 }
 
+/**
+ * Add a document to the collection.
+ *
+ * @param col The collection to add the document to.
+ * @param doc The document to add.
+ * @returns The ID of the newly added document.
+ */
 export async function addDoc(col: Collection, doc: DocumentData) {
     const documentMutation: DocumentMutation = {
         collectionName: col.name,
@@ -250,6 +257,7 @@ export async function addDoc(col: Collection, doc: DocumentData) {
         payload,
         col.db.client.nonce.toString()
     )
+
     if (response.code == 0 && response.items.length > 0) {
         col.db.client.nonce += 1
         return {
@@ -259,6 +267,8 @@ export async function addDoc(col: Collection, doc: DocumentData) {
             id: response.items[0].value,
         }
     } else {
-        throw new Error('fail to create collection')
+        throw new Error(
+            'fail to addDoc, maybe you can syncAccountNonce to resolve the problem'
+        )
     }
 }

sdk/tests/client_v2.test.ts

@@ -36,7 +36,7 @@ import {
     deleteDoc,
     updateDoc,
     queryDoc,
-    getDoc
+    getDoc,
 } from '../src/store/document_v2'
 import {
     createFromPrivateKey,
@@ -383,7 +383,7 @@ describe('test db3.js client module', () => {
                     try {
                         const doc = await getDoc(collection, 1000000000000)
                         except(1).toBe(0)
-                    } catch(e) {}
+                    } catch (e) {}
                 }
 
                 {