The server's response is unpredictable, causing Json.Parse to fail intermittently

Question

The server's response is unpredictable, causing Json.Parse to fail intermittently

I have encountered a strange issue that is really frustrating. It all started when I noticed that my Json.Parse function failed intermittently. Here is the code snippet in question:

const Info = JSON.parse(response);
this.onInfoUpdate(Info.InfoConfig[0]);

The responses I get are as follows:

"{\"InfoConfig\":[{\"InfoId\":1,\"InfoName\":\"Derp\",\"Pid\":0,\"StartDate\":\"2018-10-31T00:00:00\",\"EndDate\":\"2018-11-10T00:00:00\",\"InclusiveFilters\":null,\"ExlusiveFilters\":null,\"Type\":0}],\"InfoIds\":["1"],\"Guid\":\"2#myman\"}"

This response cannot be parsed to a Json object. I am puzzled by why it sometimes removes the backslashes and doesn't enclose the whole array in quotes.

{"InfoConfig":[{"InfoId":1,"InfoName":"Derp","Pid":0,"StartDate":"2018-10-31T00:00:00","EndDate":"2018-11-10T00:00:00","InclusiveFilters":null,"ExlusiveFilters":null,"Type":0}],"InfoIds":["1"],"Guid":"2#myman"}

The second response works fine, where JSON.parse successfully converts it to a Json object. However, there are times when I receive a different response.

This is the section responsible for sending data to the frontend:

case HiveMessageType.PlayerInfo:
                var playerNotification = (PlayerInfoNotificationModel)message;
                var InfoIds = JsonConvert.SerializeObject(playerNotification.InfoIds);
                var serializedListWithInfo = JsonConvert.SerializeObject(playerNotification);
                SignalRClient.SendAsync("RegisterUserToMultipleGroups", playerNotification.Guid, InfoIds, serializedListWithInfo);
                break;

javascript c#json typescript server

Answer 1

Answer №1

One response is a regular string and the other is a Javascript object.

To avoid crashing your application due to parsing errors, make sure to wrap JSON.parse in a try-catch block.

If your variable is not already a string, you can use JSON.stringify to convert it into one.

let data;
try {
  data = JSON.parse(JSON.stringify(response));
} catch(error) {
  // Handle any exceptions here
  data = response;
}

// Use the variable `data` for further processing.

Answer 2

One response is a regular string and the other is a Javascript object.

To avoid crashing your application due to parsing errors, make sure to wrap JSON.parse in a try-catch block.

If your variable is not already a string, you can use JSON.stringify to convert it into one.

let data;
try {
  data = JSON.parse(JSON.stringify(response));
} catch(error) {
  // Handle any exceptions here
  data = response;
}

// Use the variable `data` for further processing.

Answer 3

Answer №2

It appears that a switch case is being utilized for HiveMessageType.PlayerInfo in your code. Have you verified that the correct switch case is being executed when encountering issues, and that the code within that switch block is up to date?

It's puzzling how varying outputs are produced when the same input data and code are consistently used.

Answer 4

It appears that a switch case is being utilized for HiveMessageType.PlayerInfo in your code. Have you verified that the correct switch case is being executed when encountering issues, and that the code within that switch block is up to date?

It's puzzling how varying outputs are produced when the same input data and code are consistently used.

The server's response is unpredictable, causing Json.Parse to fail intermittently

Answer №1

Answer №2

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