所以我有一些我想写的云代码,就像帖子一样。
我的数据库设置为用户拥有likedPosts
数组,其中包含用户喜欢的所有帖子的对象ID。用户还有一个列coins
,当用户喜欢他们的帖子时,该列应该会增加。
post对象有一个likes
列,它是一个整数,每个都会增加,而post对象也有一个posterId
列,这是发布它的用户的对象ID
这是我现在的功能(我不擅长javascript和云代码,所以如果有可怕的错误,我很抱歉)
Parse.Cloud.define("likePost", function(request, response) {
Parse.Cloud.useMasterKey();
var senderId = request.params.senderId;
var postId = request.params.postId;
var post = new Parse.Object ({objectId: postId});
var posterId = post.posterId
var poster = new Parse.User ({objectId: posterId});
var sender = new Parse.User ({objectId: senderId});
sender.add("likedPosts", postId);
poster.increment("coins");
post.increment("likes");
poster.save(null, {useMasterKey:true, success:
function(poster) {
console.log("Successfully saved poster");
}, error: function(poster, error) {
console.error("Error saving poster: " + error.message);
response.error(error);
}
});
post.save(null,{useMasterKey:true, success:
function(post) {
console.log("Successfully saved post");
}, error: function(post, error) {
console.error("Error saving post: " + error.message);
response.error(error);
}
});
sender.save(null, {useMasterKey:true, success:
function(sender) {
console.log("Successfully saved sender");
}, error: function(sender, error) {
console.error("Error saving sender: " + error.message);
response.error(error);
}
});
response.success();
});
我像swift一样调用函数:
PFCloud.callFunction(inBackground: "likePost", withParameters: ["senderId" : PFUser.current()!.objectId!, " postId": postObject!.objectId!], block: { (result, error) in
if (error != nil) {
print(error!)
} else {
print("success liking")
}
})
但是,在我的日志中,出现以下错误:
2017-06-21T21:47:59.499Z - Failed running cloud function likePost for user R4d8Zrcdhw with:
Input: {"senderId":"R4d8Zrcdhw"," postId":"XXbu55PdpR"}
Error: {"code":141,"message":{"code":200,"message":"bad or missing username"}}
2017-06-21T21:47:59.492Z - bad or missing username
答案 0 :(得分:0)
我的猜测是该请求缺少定义内容类型的标头。我已经看到,如果Swift URLSession使用了不正确的内容类型标头,则Parse会通过Parse REST API返回“错误或缺少用户名”错误。
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
或
Parse.Cloud.httpRequest({
url: 'http://www.example.com/',
headers: {
'Content-Type': 'application/json;charset=utf-8'
}
})