feat(friendship): prefer AV.User.currentAsync (#671)

Author: sdjdd

src/friendship.js

@@ -3,6 +3,31 @@ const { request: LCRequest } = require('./request');
 const { getSessionToken } = require('./utils');
 
 module.exports = function(AV) {
+  const getUserWithSessionToken = authOptions => {
+    if (authOptions.user) {
+      if (!authOptions.user._sessionToken) {
+        throw new Error('authOptions.user is not signed in.');
+      }
+      return Promise.resolve(authOptions.user);
+    }
+    if (authOptions.sessionToken) {
+      return AV.User._fetchUserBySessionToken(authOptions.sessionToken);
+    }
+    return AV.User.currentAsync();
+  };
+
+  const getSessionTokenAsync = authOptions => {
+    const sessionToken = getSessionToken(authOptions);
+    if (sessionToken) {
+      return Promise.resolve(sessionToken);
+    }
+    return AV.User.currentAsync().then(user => {
+      if (user) {
+        return user.getSessionToken();
+      }
+    });
+  };
+
   /**
    * Contains functions to deal with Friendship in LeanCloud.
    * @class
@@ -14,33 +39,38 @@ module.exports = function(AV) {
      * @param {String | AV.User | Object} options if an AV.User or string is given, it will be used as the friend.
      * @param {AV.User | string} options.friend The friend (or friend's objectId) to follow.
      * @param {Object} [options.attributes] key-value attributes dictionary to be used as conditions of followeeQuery.
-     * @param {*} [authOptions]
+     * @param {AuthOptions} [authOptions]
      * @return {Promise<void>}
      */
-    request: function(options, authOptions) {
-      if (!AV.User.current()) {
-        throw new Error('Please signin an user.');
-      }
+    request: function(options, authOptions = {}) {
       let friend;
       let attributes;
+
       if (options.friend) {
         friend = options.friend;
         attributes = options.attributes;
       } else {
         friend = options;
       }
-      const friendObject = _.isString(friend)
+
+      const friendObj = _.isString(friend)
         ? AV.Object.createWithoutData('_User', friend)
         : friend;
-      return LCRequest({
-        method: 'POST',
-        path: '/users/friendshipRequests',
-        data: AV._encode({
-          user: AV.User.current(),
-          friend: friendObject,
-          friendship: attributes,
-        }),
-        authOptions,
+
+      return getUserWithSessionToken(authOptions).then(userObj => {
+        if (!userObj) {
+          throw new Error('Please signin an user.');
+        }
+        return LCRequest({
+          method: 'POST',
+          path: '/users/friendshipRequests',
+          data: {
+            user: userObj._toPointer(),
+            friend: friendObj._toPointer(),
+            friendship: attributes,
+          },
+          authOptions,
+        });
       });
     },
 
@@ -54,9 +84,6 @@ module.exports = function(AV) {
      * @return {Promise<void>}
      */
     acceptRequest: function(options, authOptions = {}) {
-      if (!getSessionToken(authOptions) && !AV.User.current()) {
-        throw new Error('Please signin an user.');
-      }
       let request;
       let attributes;
       if (options.request) {
@@ -66,13 +93,18 @@ module.exports = function(AV) {
         request = options;
       }
       const requestId = _.isString(request) ? request : request.id;
-      return LCRequest({
-        method: 'PUT',
-        path: '/users/friendshipRequests/' + requestId + '/accept',
-        data: {
-          friendship: AV._encode(attributes),
-        },
-        authOptions,
+      return getSessionTokenAsync(authOptions).then(sessionToken => {
+        if (!sessionToken) {
+          throw new Error('Please signin an user.');
+        }
+        return LCRequest({
+          method: 'PUT',
+          path: '/users/friendshipRequests/' + requestId + '/accept',
+          data: {
+            friendship: AV._encode(attributes),
+          },
+          authOptions,
+        });
       });
     },
 
@@ -83,14 +115,16 @@ module.exports = function(AV) {
      * @return {Promise<void>}
      */
     declineRequest: function(request, authOptions = {}) {
-      if (!getSessionToken(authOptions) && !AV.User.current()) {
-        throw new Error('Please signin an user.');
-      }
       const requestId = _.isString(request) ? request : request.id;
-      return LCRequest({
-        method: 'PUT',
-        path: '/users/friendshipRequests/' + requestId + '/decline',
-        authOptions,
+      return getSessionTokenAsync(authOptions).then(sessionToken => {
+        if (!sessionToken) {
+          throw new Error('Please signin an user.');
+        }
+        return LCRequest({
+          method: 'PUT',
+          path: '/users/friendshipRequests/' + requestId + '/decline',
+          authOptions,
+        });
       });
     },
   };