diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 543023661b..dda7d58057 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -640,7 +640,7 @@
     },
     "axios": {
       "version": "0.18.0",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.0.tgz",
+      "resolved": "http://registry.npmjs.org/axios/-/axios-0.18.0.tgz",
       "integrity": "sha1-MtU+SFHv3AoRmTts0AB4nXDAUQI=",
       "requires": {
         "follow-redirects": "^1.3.0",
@@ -10793,9 +10793,9 @@
       }
     },
     "seafile-js": {
-      "version": "0.2.48",
-      "resolved": "https://registry.npmjs.org/seafile-js/-/seafile-js-0.2.48.tgz",
-      "integrity": "sha512-7kX+iiu9FSPGWV/O7FVOw4/aT5I8PF5Q2cBMOqL0G508vgAj0jK89B8NeuOUtO77tJkrOTUlj4CQ0zaUViLJQw==",
+      "version": "0.2.49",
+      "resolved": "https://registry.npmjs.org/seafile-js/-/seafile-js-0.2.49.tgz",
+      "integrity": "sha512-706QzNHIa3H83vM1U0VY3vN3qn5O2WRpf77gYfb8VqHhcokgoErxxb6xNnz8mFmaQW05hs82Fae/sE5loFXWGA==",
       "requires": {
         "axios": "^0.18.0",
         "form-data": "^2.3.2",
diff --git a/frontend/package.json b/frontend/package.json
index eaa6eb638a..d6e8ba00db 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -30,7 +30,7 @@
     "react-moment": "^0.7.9",
     "react-select": "^2.1.1",
     "reactstrap": "^6.4.0",
-    "seafile-js": "^0.2.48",
+    "seafile-js": "^0.2.49",
     "seafile-ui": "^0.1.10",
     "socket.io-client": "^2.2.0",
     "sw-precache-webpack-plugin": "0.11.4",
diff --git a/frontend/src/components/dir-view/dir-view.js b/frontend/src/components/dir-view/dir-view.js
index d1575aea47..f21dea2673 100644
--- a/frontend/src/components/dir-view/dir-view.js
+++ b/frontend/src/components/dir-view/dir-view.js
@@ -137,9 +137,9 @@ class DirView extends React.Component {
   
   onAddFile = (filePath, isDraft) => {
     let repoID = this.state.repoID;
-    seafileAPI.createFile(repoID, filePath, isDraft).then(() => {
+    seafileAPI.createFile(repoID, filePath, isDraft).then(res => {
       let name = Utils.getFileName(filePath);
-      let dirent = this.createDirent(name, 'file');
+      let dirent = this.createDirent(name, 'file', res.data);
       let direntList = this.addItem(dirent, 'file');
       this.setState({direntList: direntList});
     });
@@ -419,7 +419,7 @@ class DirView extends React.Component {
     return direntList;
   }
   
-  createDirent(name, type) {
+  createDirent(name, type, direntInfo) {
     let data = new Date().getTime()/1000;
     let dirent = null;
     if (type === 'dir') {
@@ -437,7 +437,7 @@ class DirView extends React.Component {
         type: type,
         mtime: data,
         permission: 'rw',
-        size: 0,
+        size: direntInfo.size,
         starred: false,
         is_locked: false,
         lock_time: '',
diff --git a/frontend/src/repo-wiki-mode.js b/frontend/src/repo-wiki-mode.js
index a81dc55895..a374a39069 100644
--- a/frontend/src/repo-wiki-mode.js
+++ b/frontend/src/repo-wiki-mode.js
@@ -155,7 +155,7 @@ class Wiki extends Component {
 
       this.addNodeToTree(name, parentPath, 'file');
       if (parentPath === this.state.path && !this.state.isViewFile) {
-        this.addDirent(name, 'file');
+        this.addDirent(name, 'file', res.data);
       }
     }).catch(() => {
       //todo;
@@ -510,8 +510,8 @@ class Wiki extends Component {
     // else do nothing
   }
 
-  addDirent = (name, type) => {
-    let item = this.createDirent(name, type);
+  addDirent = (name, type, direntInfo) => {
+    let item = this.createDirent(name, type, direntInfo);
     let direntList = this.state.direntList;
     if (type === 'dir') {
       direntList.unshift(item);
@@ -702,7 +702,7 @@ class Wiki extends Component {
     return node;
   }
 
-  createDirent(name, type) {
+  createDirent(name, type, direntInfo) {
     let data = new Date().getTime()/1000;
     let dirent = null;
     if (type === 'dir') {
@@ -720,7 +720,7 @@ class Wiki extends Component {
         type: type,
         mtime: data,
         permission: 'rw',
-        size: 0,
+        size: direntInfo.size,
         starred: false,
         is_locked: false,
         lock_time: '',
diff --git a/frontend/src/seafile-api.js b/frontend/src/seafile-api.js
deleted file mode 100644
index cac9da10cd..0000000000
--- a/frontend/src/seafile-api.js
+++ /dev/null
@@ -1,1105 +0,0 @@
-var axios = require('axios');
-var FormData = require('form-data');
-var fs = require('fs');
-
-class SeafileAPI {
-
-  init ({ server, username, password, token }) {
-    this.server = server;
-    this.username = username;
-    this.password = password;
-    this.token = token;  //none
-    if (this.token && this.server) {
-      this.req = axios.create({
-        baseURL: this.server,
-        headers: { 'Authorization': 'Token ' + this.token }
-      });
-    }
-    return this;
-  }
-
-  initForSeahubUsage ({ siteRoot, xcsrfHeaders }) {
-    if (siteRoot && siteRoot.charAt(siteRoot.length-1) === "/") {
-      var server = siteRoot.substring(0, siteRoot.length-1);
-      this.server = server;
-    } else {
-      this.server = siteRoot;
-    }
-
-    this.req = axios.create({
-      headers: {
-        'X-CSRFToken': xcsrfHeaders,
-      }
-    });
-    return this;
-  }
-
-  _sendPostRequest(url, form) {
-    if (form.getHeaders) {
-      return this.req.post(url, form, {
-        headers:form.getHeaders()
-      });
-    } else {
-      return this.req.post(url, form);
-    }
-  }
-
-  getToken() {
-    const url = this.server + '/api2/auth-token/';
-    axios.post(url, {
-      username: this.username,
-      password: this.password
-    }).then((response) => {
-      this.token = response.data;
-      return this.token;
-    })
-  }
-
-  /**
-   * Login to server and create axios instance for future usage
-   */
-  login() {
-    const url = this.server + '/api2/auth-token/';
-    return axios.post(url, {
-      username: this.username,
-      password: this.password
-    }).then((response) => {
-      this.token = response.data.token;
-      this.req = axios.create({
-        baseURL: this.server,
-        headers: { 'Authorization': 'Token ' + this.token }
-      });
-    })
-  }
-
-  authPing() {
-    const url = this.server + '/api2/auth/ping/';
-    return this.req.get(url);
-  }
-
-  //---- Account API
-
-  getAccountInfo() {
-    const url =  this.server + '/api2/account/info/';
-    return this.req.get(url);
-  }
-
-  //---- repo API
-
-  listRepos(options) {
-    /*
-     * options: `{type: 'shared'}`, `{type: ['mine', 'shared', ...]}`
-     */
-    let url = this.server + '/api/v2.1/repos/';
-
-    if (!options) {
-      // fetch all types of repos
-      return this.req.get(url);
-    }
-
-    return this.req.get(url, {
-      params: options,
-      paramsSerializer: function(params) {
-        let list = [];
-        for (let key in params) {
-          if (Array.isArray(params[key])) {
-            for (let i = 0, len = params[key].length; i < len; i++) {
-              list.push(key + '=' + encodeURIComponent(params[key][i]));
-            }
-          } else {
-            list.push(key + '=' + encodeURIComponent(params[key]));
-          }
-        }
-        return list.join('&');
-      }
-    });
-  }
-
-  deleteRepo(repoID) {
-    const url = this.server + '/api/v2.1/repos/' + repoID + '/';
-    return this.req.delete(url);
-  }
-
-  createMineRepo(repo) {
-    const url = this.server + '/api2/repos/?from=web';
-    return this.req.post(url, repo);
-  }
-  
-  createPublicRepo(repo) {
-    const url = this.server + '/api2/repos/public/';
-    return this.req.post(url, repo);
-  }
-  
-  createGroupRepo(groupID, repo) {
-    const url = this.server + '/api/v2.1/groups/'+ groupID + '/libraries/';
-    let form = new FormData();
-    form.append("repo_name", repo.repo_name);
-    if (repo.password) {
-      form.append("password", repo.password);
-    }
-    form.append("permission", repo.permission);
-    return this._sendPostRequest(url, form);
-  }
-
-  getRepoInfo(repoID) {
-    const url = this.server + '/api/v2.1/repos/' + repoID + '/';
-    return this.req.get(url);
-  }
-
-  transferRepo(repoID, owner) {
-    const url = this.server + '/api2/repos/' + repoID + '/owner/';
-    let form = new FormData();
-    form.append('owner', owner);
-    return this.req.put(url, form);
-  }
-
-  getRepoHistoryLimit(repoID) {
-    const url = this.server + '/api2/repos/' + repoID + '/history-limit/';
-    return this.req.get(url);
-  }
-
-  setRepoHistoryLimit(repoID, historyDays) {
-    const url = this.server + '/api2/repos/' + repoID + '/history-limit/';
-    let form = new FormData();
-    form.append('keep_days', historyDays);
-    return this.req.put(url, form);
-  }
-
-  renameRepo(repoID, newName) {
-    const url = this.server + '/api2/repos/' + repoID + '/?op=rename';
-    let form = new FormData();
-    form.append('repo_name', newName);
-    return this._sendPostRequest(url, form);
-  }
-
-  listDeletedRepo() {
-    const url = this.server + '/api/v2.1/deleted-repos/';
-    return this.req.get(url);
-  }
-
-  restoreDeletedRepo(repoID) {
-    const url = this.server + '/api/v2.1/deleted-repos/';
-    let form = new FormData();
-    form.append('repo_id', repoID);
-    return this._sendPostRequest(url, form);
-  }
-
-  setRepoDecryptPassword(repoID, password) {
-    const url = this.server + '/api/v2.1/repos/' + repoID + '/set-password/';
-    let form = new FormData();
-    form.append('password', password);
-    return this._sendPostRequest(url, form);
-  }
-
-  // group owner repo (department)
-  createGroupOwnedLibrary(groupID, repo) {
-    let repoName = repo.repo_name;
-    let permission = repo.permission ? permission : 'rw';
-    const url = this.server + '/api/v2.1/groups/'+ groupID + '/group-owned-libraries/';
-    let form = new FormData();
-    form.append('name', repoName);  // need to modify endpoint api;
-    form.append('permission', permission);
-    return this._sendPostRequest(url, form);
-  }
-  
-  deleteGroupOwnedLibrary(groupID, repoID) {
-    const url = this.server + '/api/v2.1/groups/'+ groupID + '/group-owned-libraries/' + repoID+ '/';
-    return this.req.delete(url);
-  }
-  
-  shareGroupOwnedRepoToUser(repoID, permission, username) {
-    const url = this.server + '/api/v2.1/group-owned-libraries/' + repoID + '/user-share/'
-    let form = new FormData();
-    form.append('permission', permission);
-    if (Array.isArray(username)) {
-      username.forEach(item => {
-        form.append('username', item);
-      });
-    } else {
-      form.append('username', username);
-    }
-    return this._sendPostRequest(url, form);
-  }
-
-  modifyGroupOwnedRepoUserSharedPermission(repoID, permission, username) { //need check
-    const url = this.server + '/api/v2.1/group-owned-libraries/' + repoID + '/user-share/'
-    let form = new FormData();
-    form.append('permission', permission);
-    form.append('username', username);
-    return this.req.put(url, form);
-  }
-
-  deleteGroupOwnedRepoSharedUserItem(repoID, username) {
-    const url = this.server + '/api/v2.1/group-owned-libraries/' + repoID + '/user-share/'
-    let params = {username: username};
-    return this.req.delete(url, {data: params});
-  }
-
-  shareGroupOwnedRepoToGroup(repoID, permission, groupID) {
-    const url = this.server + '/api/v2.1/group-owned-libraries/' + repoID + '/group-share/'
-    let form = new FormData();
-    form.append('permission', permission);
-    if (Array.isArray(groupID)) {
-      groupID.forEach(item => {
-        form.append('group_id', item);
-      });
-    } else {
-      form.append('group_id', groupID);
-    }
-    return this._sendPostRequest(url, form);
-  }
-
-  modifyGroupOwnedRepoGroupSharedPermission(repoID, permission, groupID) { //need check
-    const url = this.server + '/api/v2.1/group-owned-libraries/' + repoID + '/group-share/'
-    let form = new FormData();
-    form.append('permission', permission);
-    form.append('group_id', groupID);
-    return this.req.put(url, form);
-  }
-
-  deleteGroupOwnedRepoSharedGroupItem(repoID, groupID) {
-    const url = this.server + '/api/v2.1/group-owned-libraries/' + repoID + '/group-share/'
-    let params = {group_id: groupID};
-    return this.req.delete(url, {data: params});
-  }
-
-  //---- folder API
-
-  listDir(repoID, dirPath, opts = {}) {
-    const { recursive } = opts;
-    const path = encodeURIComponent(dirPath);
-    var url =  this.server + '/api/v2.1/repos/' + repoID + '/dir/?p=' + path;
-    if (recursive) {
-      url = url + '&recursive=1';
-    }
-    return this.req.get(url);
-  }
-
-  listWikiDir(slug, dirPath) {
-    const path = encodeURIComponent(dirPath);
-    const url = this.server + '/api/v2.1/wikis/' + slug + '/dir/?p=' + path;
-    return this.req.get(url);
-  }
-
-  //---- file api
-  getInternalLink(repoID, filePath) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api/v2.1/smart-link/?repo_id=' + repoID + '&path=' + path + '&is_dir=false';
-    return this.req.get(url);
-  }
-
-  getWikiFileContent(slug, filePath) {
-    const path = encodeURIComponent(filePath);
-    const time = new Date().getTime();
-    const url = this.server + '/api/v2.1/wikis/' + slug + '/content/' + '?p=' + path + '&_=' + time;
-    return this.req.get(url)
-  }
-
-  getFileInfo(repoID, filePath) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api2/repos/' + repoID + '/file/detail/?p=' + path;
-    return this.req.get(url);
-  }
-
-  starFile(repoID, filePath) {
-    const url = this.server + '/api2/starredfiles/';
-    let form = new FormData();
-    form.append('repo_id', repoID);
-    form.append('p', filePath);
-    return this._sendPostRequest(url, form);
-  }
-
-  unStarFile(repoID, filePath) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + "/api2/starredfiles/?repo_id=" + repoID + "&p=" + path;
-    return this.req.delete(url);
-  }
-
-  getFileDownloadLink(repoID, filePath) {
-    // reuse default to 1 to eliminate cross domain request problem
-    //   In browser, the browser will send an option request to server first, the access Token
-    //   will become invalid if reuse=0
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api2/repos/' + repoID + '/file/?p=' + path + '&reuse=1';
-    return this.req.get(url);
-  }
-
-  getFileContent(downloadLink) {
-    return axios.create().get(downloadLink);
-  }
-
-  getUpdateLink(repoID, folderPath) {
-    const url = this.server + '/api2/repos/' + repoID + '/update-link/?p=' + folderPath;
-    return this.req.get(url)
-  }
-
-  updateFile(uploadLink, filePath, fileName, data) {
-    let formData = new FormData();
-    formData.append("target_file", filePath);
-    formData.append("filename", fileName);
-    let blob = new Blob([data], { type: "text/plain" });
-    formData.append("file", blob);
-    return (
-      axios.create()({
-        method: 'post',
-        url: uploadLink,
-        data: formData,
-      })
-    );
-  }
-
-  uploadImage (uploadLink, formData) {
-    return (
-      axios.create()({
-        method: "post",
-        data: formData,
-        url: uploadLink
-      })
-    );
-  }
-
-  getFileHistory(repoID, folderPath) {
-    const url = this.server + "/api2/repos/" + repoID + "/file/history/?p=" + folderPath;
-    return this.req.get(url);
-  }
-
-  getUploadLink(repoID, folderPath) {
-    const url = this.server + '/api2/repos/' + repoID + '/upload-link/?p=' + folderPath + '&from=web';
-    return this.req.get(url);
-  }
-
-  getFileUploadedBytes(repoID, filePath, fileName) {
-    let url = this.server + '/api/v2.1/repos/' + repoID + '/file-uploaded-bytes/';
-    let params = {
-      parent_dir: filePath,
-      file_name: fileName,
-    };
-    return this.req.get(url, {params: params});
-  }
-
-  getSharedRepos() {
-    const url = this.server + '/api2/shared-repos/';
-    return this.req.get(url);
-  }
-
-  getBeSharedRepos() {
-    const url = this.server + '/api2/beshared-repos/';
-    return this.req.get(url);
-  }
-
-  //----file and dir API
-  createDir(repoID, dirPath) {
-    const path = encodeURIComponent(dirPath);
-    const url =  this.server + '/api2/repos/' + repoID + '/dir/?p=' + path;
-    let form = new FormData();
-    form.append('operation', 'mkdir');
-    return this._sendPostRequest(url, form);
-  }
-
-  createFile(repoID, filePath, isDraft) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api2/repos/' + repoID + '/file/?p=' + path;
-    let form = new FormData();
-    form.append('operation', 'create');
-    form.append('is_draft', isDraft);
-    return this._sendPostRequest(url, form);
-  }
-
-  renameFile(repoID, filePath, newfileName) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api/v2.1/repos/' + repoID + '/file/?p=' + path;
-    let form = new FormData();
-    form.append('operation', 'rename');
-    form.append('newname', newfileName);
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteFile(repoID, filePath) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api2/repos/' + repoID + '/file/?p=' + path;
-    return this.req.delete(url);
-  }
-
-  lockfile(repoID, filePath) {
-    const url = this.server + '/api2/repos/'+ repoID + '/file/'
-    let params = {p: filePath, operation: 'lock'};
-    return this.req.put(url, params);
-  }
-
-  unlockfile(repoID, filePath) {
-    const url = this.server + '/api2/repos/'+ repoID + '/file/'
-    let params = {p: filePath, operation: 'unlock'};
-    return this.req.put(url, params);
-  }
-
-  //function don't have response
-  renameDir(repoID, dirPath, newdirName) {
-    const path = encodeURIComponent(dirPath);
-    const url = this.server + '/api2/repos/' + repoID + '/dir/?p=' + path;
-    let form = new FormData();
-    form.append("operation", 'rename');
-    form.append("newname", newdirName);
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteDir(repoID, dirPath) {
-    const path = encodeURIComponent(dirPath);
-    const url = this.server + '/api2/repos/' +  repoID + '/dir/?p=' + path;
-    return this.req.delete(url);
-  }
-
-  // copy files or dirs
-  copyDir(repoID, dstrepoID, dstfilePath, dirPath, direntNames) {
-    let fileNames = direntNames;
-    if (Array.isArray(direntNames)) {
-      fileNames = '';
-      for (let i = 0; i < direntNames.length; i++) {
-        if (i < direntNames.length - 1) {
-          fileNames += direntNames[i] + ':';
-        } else {
-          fileNames += direntNames[i];
-        }
-      }
-    }
-    const path = encodeURIComponent(dirPath);
-    const url = this.server + '/api2/repos/' + repoID + '/fileops/copy/?p=' + path;
-    let form = new FormData();
-    form.append('dst_repo', dstrepoID);
-    form.append('dst_dir', dstfilePath);
-    form.append('file_names', fileNames);
-    return this._sendPostRequest(url, form);
-  }
-  
-  //move files or dirs
-  moveDir(repoID, dstrepoID, dstfilePath, dirPath, direntNames) {
-    let fileNames = direntNames;
-    if (Array.isArray(direntNames)) {
-      fileNames = '';
-      for (let i = 0; i < direntNames.length; i++) {
-        if (i < direntNames.length - 1) {
-          fileNames += direntNames[i] + ':';
-        } else {
-          fileNames += direntNames[i];
-        }
-      }
-    }
-    const path = encodeURIComponent(dirPath);
-    const url = this.server + '/api2/repos/' + repoID + '/fileops/move/?p=' + path;
-    let form = new FormData();
-    form.append('dst_repo', dstrepoID);
-    form.append('dst_dir', dstfilePath);
-    form.append('file_names', fileNames);
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteMutipleDirents(repoID, parentDir, direntNames) {
-    let fileNames = '';
-    for (let i = 0; i < direntNames.length; i++) {
-      if (i < direntNames.length - 1) {
-        fileNames += direntNames[i] + ':';
-      } else {
-        fileNames += direntNames[i];
-      }
-    }
-    const path = encodeURIComponent(parentDir);
-    const url = this.server + '/api2/repos/' + repoID + '/fileops/delete/?p=' + path;
-    let form = new FormData();
-    form.append('file_names', fileNames);
-    return this._sendPostRequest(url, form);
-  }
-
-  searchFiles(searchParams, cancelToken) {
-    const url = this.server + '/api2/search/';
-    return this.req.get(url, {params: searchParams, cancelToken : cancelToken});
-  }
-
-  getSource() {
-    let CancelToken = axios.CancelToken;
-    let source = CancelToken.source();
-    return source;
-  }
-
-  getDirInfo(repoID, dirPath) {
-    const path = encodeURIComponent(dirPath);
-    const url = this.server + '/api/v2.1/repos/' + repoID + '/dir/detail/?path=' + path;
-    return this.req.get(url);
-  }
-
-  //---- ShareLink API
-  createShareLink(repoID, path, password, expireDays, permissions) {
-    const url = this.server + '/api/v2.1/share-links/';
-    let form = new FormData();
-    form.append('path', path);
-    form.append('repo_id', repoID);
-    form.append('permissions', permissions);
-    if (password) {
-      form.append('password', password);
-    }
-    if (expireDays) {
-      form.append('expire_days', expireDays);
-    }
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteShareLink(token) {
-    const url = this.server + '/api/v2.1/share-links/' + token + '/';
-    return this.req.delete(url);
-  }
-
-  listAllShareLinks() {
-    const url = this.server + '/api/v2.1/share-links/';
-    return this.req.get(url);
-  }
-
-  listRepoShareLinks(repoID) {
-    const url = this.server + '/api/v2.1/share-links/?repo_id=' + repoID;
-    return this.req.get(url);
-  }
-
-  getShareLink(repoID, filePath) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api/v2.1/share-links/?repo_id=' + repoID + '&path=' + path;
-    return this.req.get(url);
-  }
-
-  //---- Group API
-  listGroups() {
-    const url = this.server + '/api2/groups/';
-    return this.req.get(url);
-  }
-
-  createGroup(name) {
-    const url = this.server + '/api/v2.1/groups/';
-    let form = new FormData();
-    form.append('name', name);
-    return this._sendPostRequest(url, form);
-  }
-
-  // ---- Activities API
-  listActivities(pageNum, avatarSize=36) {
-    const url = this.server + '/api/v2.1/activities/?page=' + pageNum + '&size=' + avatarSize;
-    return this.req.get(url);
-  }
-
-  //---- Notification API
-  listPopupNotices() {
-    const url = this.server + '/ajax/get_popup_notices/';
-    return this.req.get(url, { headers: {'X-Requested-With': 'XMLHttpRequest'}});
-  }
-
-  updateNotifications() {
-    const url = this.server + '/api/v2.1/notifications/';
-    return this.req.put(url);
-  }
-
-  //--- filehistory api
-  listFileHistoryRecords(repoID, path, page, per_page) {
-    const url = this.server +  '/api/v2.1/repos/'+ repoID + '/file/new_history/';
-    const params = {
-      path: path,
-      page: page,
-      per_page: per_page,
-    }
-    return this.req.get(url, {params: params});
-  }
-
-  getFileRevision(repoID, commitID, filePath) {
-    let url = this.server + '/api2/' + 'repos/' + repoID + '/file' + '/revision/?p=' + filePath + '&commit_id=' + commitID
-    return this.req.get(url);
-  }
-
-  revertFile(repoID, path, commitID) {
-    const url = this.server +  '/api/v2.1/repos/'+ repoID + '/file/?p=' + path;
-    let form = new FormData();
-    form.append("operation", 'revert');
-    form.append("commit_id", commitID);
-    return this._sendPostRequest(url, form);
-  }
-
-  // draft operation api
-  createDraft(repoID, filePath) {
-    const url = this.server + '/api/v2.1/drafts/';
-    const form = new FormData();
-    form.append("repo_id", repoID);
-    form.append("file_path", filePath);
-    return this.req.post(url, form);
-  }
-
-  listDrafts() {
-    const url = this.server + '/api/v2.1/drafts';
-    return this.req.get(url);
-  }
-
-  deleteDraft(id) {
-    const url = this.server + '/api/v2.1/drafts/' + id + '/';
-    return this.req.delete(url);
-  }
-
-  publishDraft(id) {
-    const url = this.server + '/api/v2.1/drafts/' + id + '/';
-    const params = {
-      operation: 'publish'
-    }
-    return this.req.put(url, params);
-  }
-
-  // file comments api
-  postComment(repoID, filePath, comment, detail) {
-    const path = encodeURIComponent(filePath);
-    const url = this.server + '/api2/repos/' + repoID + '/file/comments/?p=' + path;
-    let form = new FormData();
-    form.append("comment", comment);
-    if (detail) {
-      form.append("detail", detail);
-    }
-    return this._sendPostRequest(url, form);
-  }
-
-  getCommentsNumber(repoID, path) {
-    const p = encodeURIComponent(path);
-    const url = this.server + '/api2/repos/' + repoID + '/file/comments/counts/?p=' + p;
-    return this.req.get(url);
-  }
-
-  listComments(repoID, filePath, resolved) {
-    const path = encodeURIComponent(filePath);
-    let url = this.server + '/api2/repos/' + repoID + '/file/comments/?p=' + path;
-    if (resolved) {
-      url = url + '&resolved=' + resolved;
-    }
-    return this.req.get(url);
-  }
-
-  deleteComment(repoID, commentID) {
-    const url = this.server + '/api2/repos/' + repoID + '/file/comments/' + commentID + '/';
-    return this.req.delete(url);
-  }
-
-  updateComment(repoID, commentID, resolved, detail) {
-    const url = this.server + '/api2/repos/' + repoID + '/file/comments/' + commentID + '/';
-    let params = {
-      resolved: resolved
-    }
-    if (detail) {
-      params.detail = detail;
-    }
-    return this.req.put(url, params);
-  }
-
-  // review comments api
-  addReviewComment(reviewID, comment, detail) {
-    const url = this.server + '/api2/review/' + reviewID + '/comments/';
-    let form = new FormData();
-    form.append('comment', comment);
-    if (detail) {
-      form.append('detail', detail);
-    }
-    return this._sendPostRequest(url, form);
-  }
-
-  listReviewComments(reviewID, page, perPage, avatarSize) {
-    const url = this.server + '/api2/review/' + reviewID + '/comments/?page=' + page + '&per_page=' + perPage + '&avatar_size=' + avatarSize;
-    return this.req.get(url);
-  }
-
-  deleteReviewComment(reviewID, commentID) {
-    const url = this.server + '/api2/review/' + reviewID + '/comment/' + commentID + '/';
-    return this.req.delete(url);
-  }
-
-  updateReviewComment(reviewID, commentID, resolved, detail) {
-    const url = this.server + '/api2/review/' + reviewID + '/comment/' + commentID + '/';
-    let params = {
-      resolved: resolved
-    }
-    if (detail) {
-      params.detail = detail;
-    }
-    return this.req.put(url, params);
-  }
-
-  zipDownload(repoID, parent_dir, dirents) {
-    let url = '';
-    if (Array.isArray(dirents)) {
-      let params = '';
-      for (let i = 0; i < dirents.length; i++) {
-        params += '&dirents=' + dirents[i];
-      }
-      url = this.server + '/api/v2.1/repos/' + repoID + '/zip-task/?parent_dir=' + parent_dir + params;
-    } else {
-      url = this.server + '/api/v2.1/repos/' + repoID + '/zip-task/?parent_dir=' + parent_dir + '&dirents=' + dirents;
-    }
-    return this.req.get(url);
-  }
-
-  queryZipProgress(zip_token) {
-    const url = this.server  + '/api/v2.1/query-zip-progress/?token=' + zip_token;
-    return this.req.get(url);
-  }
-
-  cancelZipTask(zip_token) {
-    const url = this.server + '/api/v2.1/cancel-zip-task/';
-    const form = new FormData();
-    form.append("token", zip_token);
-    return this.req.post(url, form);
-  }
-
-  //---- Starred API
-  listStarred() {
-    const url = this.server + '/api2/starredfiles/';
-    return this.req.get(url);
-  }
-
-  //---- Linked Devices API
-  listLinkedDevices() {
-    const url = this.server + '/api2/devices/';
-    return this.req.get(url);
-  }
-
-  unlinkDevice(platform, device_id) {
-    const url = this.server + "/api2/devices/";
-    let param = {
-        platform: platform,
-        device_id: device_id
-    };
-    return this.req.delete(url, {data: param});
-  }
-
-  //---- Thumbnail API
-  createThumbnail(repo_id, path, thumbnail_size) {
-    const url = this.server + '/thumbnail/' + repo_id + '/create/?path=' +
-      encodeURIComponent(path) + '&size=' + thumbnail_size;
-    return this.req.get(url, {headers: {'X-Requested-With': 'XMLHttpRequest'}});
-  }
-
-  createDraftReview(id) {
-    const url = this.server + '/api/v2.1/reviews/';
-    const params = {
-      draft_id: id
-    }
-    return this.req.post(url, params);
-  }
-
-  createFileReview(repoID, filePath) {
-    const url = this.server + '/api/v2.1/file-review/';
-    const form = new FormData();
-    form.append("repo_id", repoID);
-    form.append("file_path", filePath);
-    return this.req.post(url, form);
-  }
-
-  getDraft(id) {
-    const url = this.server + '/api/v2.1/drafts/' + id + '/';
-    return this.req.get(url)
-  }
-
-  listReviews(status) {
-    const url = this.server + '/api/v2.1/reviews/?status=' + status;
-    return this.req.get(url);
-  }
-
-  updateReviewStatus(id, st) {
-    const url = this.server + '/api/v2.1/review/'+ id + '/';
-    const params = {
-      status: st
-    }
-    return this.req.put(url, params);
-  }
-
-  getUserAvatar(user, size) {
-    const url = this.server + '/api2/avatars/user/' + user + '/resized/' + size +'/';
-    return this.req.get(url);
-  }
-
-  listReviewers(reviewID) {
-    const url = this.server + '/api/v2.1/review/' + reviewID + '/reviewer/';
-    return this.req.get(url);
-  }
-
-  addReviewers(reviewID, reviewers) {
-    const url = this.server + '/api/v2.1/review/' + reviewID + '/reviewer/';
-    let form = new FormData();
-    for(let i = 0 ; i < reviewers.length ; i ++) {
-      form.append('reviewer', reviewers[i]);
-    }
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteReviewer(reviewID, reviewer) {
-    const url = this.server + '/api/v2.1/review/' + reviewID + '/reviewer/?username=' + reviewer;
-    return this.req.delete(url);
-  }
-
-  //--- RepoTag API
-  listRepoTags(repoID) {
-    var url = this.server + '/api/v2.1/repos/' + repoID + '/repo-tags/';
-    return this.req.get(url);
-  }
-
-  createRepoTag(repoID, name, color) {
-    var url = this.server + '/api/v2.1/repos/' + repoID + '/repo-tags/';
-    var form = new FormData();
-    form.append('name', name);
-    form.append('color', color);
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteRepoTag(repoID, repo_tag_id) {
-    var url = this.server + '/api/v2.1/repos/' + repoID + '/repo-tags/' + repo_tag_id + '/';
-    return this.req.delete(url);
-  }
-
-  updateRepoTag(repoID, repo_tag_id, name, color) {
-    var url = this.server + '/api/v2.1/repos/' + repoID + '/repo-tags/' + repo_tag_id + '/';
-    var params = {
-      name: name,
-      color: color,
-    };
-    return this.req.put(url, params);
-  }
-
-  searchUsers(searchParam) {
-    const url = this.server + '/api2/search-user/?q=' + encodeURIComponent(searchParam);
-    return this.req.get(url);
-  }
-
-  //---- FileTag API
-  listFileTags(repoID, filePath) {
-    var p = encodeURIComponent(filePath)
-    var url = this.server + '/api/v2.1/repos/' + repoID + '/file-tags/?file_path=' + p;
-    return this.req.get(url);
-  }
-
-  addFileTag(repoID, filePath, repoTagId) {
-    var form = new FormData();
-    form.append('file_path', filePath);
-    form.append('repo_tag_id', repoTagId);
-    var url = this.server + '/api/v2.1/repos/' + repoID + '/file-tags/';
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteFileTag(repoID, fileTagId) {
-    var url = this.server + '/api/v2.1/repos/' + repoID + '/file-tags/' + fileTagId + '/';
-    return this.req.delete(url);
-  }
-
-  listSharedRepos() {
-    const url = this.server + '/api/v2.1/shared-repos/';
-    return this.req.get(url);
-  }
-
-  updateRepoSharePerm(repoID, options) {
-    const url = this.server + '/api/v2.1/shared-repos/' + repoID + '/';
-    return this.req.put(url, options);
-  }
-
-  unshareRepo(repoID, options) {
-    const url = this.server + '/api/v2.1/shared-repos/' + repoID + '/';
-    return this.req.delete(url, {params: options});
-  }
-
-  listSharedFolders() {
-    const url = this.server + '/api/v2.1/shared-folders/';
-    return this.req.get(url);
-  }
-
-  shareFolder(repoID, path, shareType, permission, paramArray) {
-    var form = new FormData();
-    form.append('share_type', shareType);
-    form.append('permission', permission);
-    if (shareType == 'user') {
-      for (let i = 0; i < paramArray.length; i++) {
-        form.append('username', paramArray[i]);
-      }
-    } else {
-      for (let i = 0; i < paramArray.length; i++) {
-        form.append('group_id', paramArray[i]);
-      }
-    }
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/?p=' + path;
-    return this.req.put(url, form); 
-  }
-
-  listSharedItems(repoID, path, shareType) {
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/?p=' + path + '&share_type=' + shareType;
-    return this.req.get(url);
-  }
-
-  updateFolderSharePerm(repoID, data, options) {
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/';
-    return this.req.post(url, data, {params: options}); // due to the old api, use 'post' here
-  }
-
-  unshareFolder(repoID, options) {
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/';
-    return this.req.delete(url, {params: options});
-  }
-
-  listShareLinks() {
-    const url = this.server + '/api/v2.1/share-links/';
-    return this.req.get(url);
-  }
-
-  createUploadLink(repoID, path, password) {
-    const url = this.server + '/api/v2.1/upload-links/';
-    let form = new FormData();
-    form.append('path', path);
-    form.append('repo_id', repoID);
-    if (password) {
-      form.append('password', password);
-    }
-    return this._sendPostRequest(url, form);
-  }
-
-  getUploadLinks(repoID, path) {
-    const url = this.server + '/api/v2.1/upload-links/?repo_id=' + repoID + '&path=' + path;
-    return this.req.get(url);
-  }
-
-  listUploadLinks() {
-    const url = this.server + '/api/v2.1/upload-links/';
-    return this.req.get(url);
-  }
-
-  deleteUploadLink(token) {
-    const url = this.server + '/api/v2.1/upload-links/' + token + '/';
-    return this.req.delete(url);
-  }
-
-  leaveShareRepo(repoID, options) {
-    const url = this.server + '/api2/beshared-repos/' + repoID + '/';
-    return this.req.delete(url, {params: options});
-  }
-
-  leaveShareGroupOwnedRepo(repoID) {
-    const url = this.server + '/api/v2.1/group-owned-libraries/user-share-in-libraries/' + repoID + '/';
-    return this.req.delete(url);
-  }
-
-  listTaggedFiles(repoID, repoTagId) {
-    const url = this.server + '/api/v2.1/repos/' + repoID + '/tagged-files/' + repoTagId + '/';
-    return this.req.get(url);
-  }
-
-  //---- RelatedFile API
-  listRelatedFiles(repoID, filePath) {
-    const p = encodeURIComponent(filePath);
-    const url = this.server + '/api/v2.1/related-files/?repo_id=' + repoID + '&file_path=' + p;
-    return this.req.get(url);
-  }
-
-  addRelatedFile(oRepoID, rRepoID, oFilePath, rFilePath) {
-    const form = new FormData();
-    form.append('o_repo_id', oRepoID);
-    form.append('r_repo_id', rRepoID);
-    form.append('o_path', oFilePath);
-    form.append('r_path', rFilePath);
-    const url = this.server + '/api/v2.1/related-files/';
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteRelatedFile(repoID, filePath, relatedID) {
-    const url = this.server + '/api/v2.1/related-files/' + relatedID + '/';
-    const params = {
-      repo_id: repoID,
-      file_path: filePath
-    };
-    return this.req.delete(url, { data: params });
-  }
-
-  shareableGroups() {
-    const url = this.server + '/api/v2.1/shareable-groups/';
-    return this.req.get(url);
-  }
-
-  deleteShareToUserItem(repoID, path, shareType, username) {
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/?p=' + path + '&share_type=' + shareType + '&username=' + username;
-    return this.req.delete(url); 
-  }
-
-  updateShareToUserItemPermission(repoID, path, shareType, username, permission) {
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/?p=' + path + '&share_type=' + shareType + '&username=' + username;
-    let form = new FormData();
-    form.append('permission', permission);
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteShareToGroupItem(repoID, path, shareType, groupID) {
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/?p=' + path + '&share_type=' + shareType + '&group_id=' + groupID;
-    return this.req.delete(url);
-  }
-
-  updateShareToGroupItemPermission(repoID, path, shareType, groupID, permission) {
-    const url = this.server + '/api2/repos/' + repoID + '/dir/shared_items/?p=' + path + '&share_type=' + shareType + '&group_id=' + groupID;
-    let form = new FormData();
-    form.append('permission', permission);
-    return this._sendPostRequest(url, form);
-  }
-
-  listGroupsV2(options) {
-    const url = this.server + '/api/v2.1/groups/';
-    return this.req.get(url, {params: options});
-  }
-
-  getGroup(groupID) {
-    const url = this.server + '/api/v2.1/groups/' + groupID + '/';
-    return this.req.get(url);
-  }
-
-  listGroupRepos(groupID) {
-    const url = this.server + '/api/v2.1/groups/' + groupID + '/libraries/';
-    return this.req.get(url);
-  }
-
-  //---- wiki API
-  listWikis(options) {
-    /*
-     * options: `{type: 'shared'}`, `{type: ['mine', 'shared', ...]}`
-     */
-    let url = this.server + '/api/v2.1/wikis/';
-    if (!options) {
-      // fetch all types of wikis
-      return this.req.get(url);
-    }
-    return this.req.get(url, {
-      params: options,
-      paramsSerializer: function paramsSerializer(params) {
-        let list = [];
-        for (let key in params) {
-          if (Array.isArray(params[key])) {
-            for (let i = 0, len = params[key].length; i < len; i++) {
-              list.push(key + '=' + encodeURIComponent(params[key][i]));
-            }
-          } else {
-            list.push(key + '=' + encodeURIComponent(params[key]));
-          }
-        }
-        return list.join('&');
-      }
-    });
-  }
-
-  addWiki(isExist, name, repoID) {
-    const url = this.server + '/api/v2.1/wikis/';
-    let form = new FormData();
-    form.append('use_exist_repo', isExist);
-    form.append('repo_id', repoID);
-    form.append('name', name);
-    return this._sendPostRequest(url, form);
-  }
-
-  renameWiki(slug, name) {
-    const url = this.server + '/api/v2.1/wikis/' + slug + '/';
-    let form = new FormData();
-    form.append('wiki_name', name);
-    return this._sendPostRequest(url, form);
-  }
-
-  deleteWiki(slug) {
-    const url = this.server + '/api/v2.1/wikis/' + slug + '/';
-    return this.req.delete(url);
-  }
-
-}
-
-export { SeafileAPI };