ElementalTree ElementalTree - 1 month ago 5
Vb.net Question

(JSON.net) cannot deserialize the current JSON array, it comes from a web-api but is it wrong?

(using JSON.net)
I'm trying to parse an array generated by a web-api (website). This is the output:

[
{
"difficulty": 100,
"size": 8,
"kill": 1,
"name": "Refurbisher 0",
"specs": [
{
"class": "Global",
"spec": "Scholar",
"combined": false,
"data": [
{
"character_id": 138634,
"character_name": "---",
"persecondamount": 1162.87,
"ilvl": 3.4,
"duration": 369801,
"start_time": 1476819363468,
"report_code": "GP4w1NgWjVF87dYH",
"report_fight": 5,
"ranking_id": 113148996,
"guild": null,
"total": 0,
"rank": "-",
"percent": 89.939300240724,
"exploit": 0,
"banned": false,
"historical_count": 2240,
"historical_percent": 91
},
{
"character_id": 138634,
"character_name": "---",
"persecondamount": 1103.58,
"ilvl": 3.4,
"duration": 329641,
"start_time": 1477420365118,
"report_code": "qtmKzMnFx6NXy1VR",
"report_fight": 4,
"ranking_id": 118427755,
"guild": null,
"total": 0,
"rank": "-",
"percent": 86.86332696937,
"exploit": 0,
"banned": false,
"historical_count": 2601,
"historical_percent": 86
},
{
"character_id": 138634,
"character_name": "---",
"persecondamount": 775.108,
"ilvl": 3.4,
"duration": 397106,
"start_time": 1475608153904,
"report_code": "Q9rGtyaLv3fCM28K",
"report_fight": 14,
"ranking_id": 107727522,
"guild": null,
"total": 0,
"rank": "-",
"percent": 60.798351443404,
"exploit": 0,
"banned": false,
"historical_count": 1097,
"historical_percent": 71
},
{
"character_id": 138634,
"character_name": "---",
"persecondamount": 774.709,
"ilvl": 3.4,
"duration": 383086,
"start_time": 1476212953820,
"report_code": "a98jMzhDHYbmdVTt",
"report_fight": 9,
"ranking_id": 110419488,
"guild": null,
"total": 0,
"rank": "-",
"percent": 60.757687862686,
"exploit": 0,
"banned": false,
"historical_count": 1762,
"historical_percent": 67
},
{
"character_id": 138634,
"character_name": "---",
"persecondamount": 571.689,
"ilvl": 3.4,
"duration": 455377,
"start_time": 1475086407115,
"report_code": "XbFYWyL1gDJ9pB4Q",
"report_fight": 3,
"ranking_id": 106604925,
"guild": null,
"total": 0,
"rank": "-",
"percent": 39.931594034917,
"exploit": 0,
"banned": false,
"historical_count": 209,
"historical_percent": 43
}
],
"best_persecondamount": 1162.87,
"best_duration": 329641,
"best_historical_percent": 91,
"best_allstar_points": 102.78152640182,
"best_combined_allstar_points": 0,
"possible_allstar_points": 120,
"historical_total": 5,
"historical_median": 71,
"historical_avg": 71.6
}
],
"variable": false,
"partition": 1
}
]


But I keep getting this error:
Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'WindowsApplication1.FFLogs' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.


Currently using this piece of code (replace json with above):

Dim obj = JsonConvert.DeserializeObject(Of FFLogs)(json)
MessageBox.Show(obj.name)


My classes:

Public Class Datum
Public Property character_id As Integer
Public Property character_name As String
Public Property persecondamount As Double
Public Property ilvl As Double
Public Property duration As Integer
Public Property start_time As Object
Public Property report_code As String
Public Property report_fight As Integer
Public Property ranking_id As Integer
Public Property guild As Object
Public Property total As Integer
Public Property rank As String
Public Property percent As Double
Public Property exploit As Integer
Public Property banned As Boolean
Public Property historical_count As Integer
Public Property historical_percent As Integer
End Class

Public Class Spec
Public Property spec As String
Public Property combined As Boolean
Public Property data As Datum()
Public Property best_persecondamount As Double
Public Property best_duration As Integer
Public Property best_historical_percent As Integer
Public Property best_allstar_points As Double
Public Property best_combined_allstar_points As Integer
Public Property possible_allstar_points As Integer
Public Property historical_total As Integer
Public Property historical_median As Double
Public Property historical_avg As Double
End Class

Public Class FFLogs
Public Property difficulty As Integer
Public Property size As Integer
Public Property kill As Integer
Public Property name As String
Public Property specs As Spec()
Public Property variable As Boolean
Public Property partition As Integer
End Class


Any tip on how I could make this work? I don't know if I have to use another way of deserializing because of the output being weird or smth, tried making the output a one liner too to see if that'd help.

Answer

Try changing your code to this:

Dim obj = JsonConvert.DeserializeObject(Of List(Of FFLogs))(json)
MessageBox.Show(obj.name)