(VB.NET UWP/WinRT) QuickBooks - Parse the JSON of a Customer Balance Detail Report

This example is to show how to parse the JSON of a particular Quickbooks report. The techniques shown here may help in parsing similar reports.

The JSON to be parsed is available at Sample Quickbooks Customer Balance Detail Report JSON

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim success As Boolean
Dim http As New Chilkat.Http

' Get the JSON we'll be parsing..
Dim jsonStr As String = Await http.QuickGetStrAsync("https://www.chilkatsoft.com/exampleData/qb_customer_balance_detail_report_2.json")
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim json As New Chilkat.JsonObject
json.Load(jsonStr)

' As an alternative to manually writing code, use this online tool to generate parsing code from sample JSON: 
' Generate Parsing Code from JSON

' Let's parse the JSON into a CSV, and then save to a CSV file.
Dim csv As New Chilkat.Csv
csv.HasColumnNames = True

' Set the column names of the CSV.
Dim numColumns As Integer = json.SizeOfArray("Columns.Column")
If (numColumns < 0) Then
    Debug.WriteLine("Unable to get column names")
    Exit Sub
End If

Dim i As Integer = 0
While i < numColumns
    json.I = i
    csv.SetColumnName(i,json.StringOf("Columns.Column[i].ColTitle"))
    i = i + 1
End While

' Let's get the rows.
' We'll ignore the Header and Summary, and just get the data.
Dim row As Integer = 0
Dim numRows As Integer = json.SizeOfArray("Rows.Row[0].Rows.Row")
If (numRows < 0) Then
    Debug.WriteLine("Unable to get data rows")
    Exit Sub
End If


While row < numRows
    json.I = row
    numColumns = json.SizeOfArray("Rows.Row[0].Rows.Row[i].ColData")
    Dim col As Integer = 0
    While col < numColumns
        json.J = col
        csv.SetCell(row,col,json.StringOf("Rows.Row[0].Rows.Row[i].ColData[j].value"))
        col = col + 1
    End While
    row = row + 1
End While

' Show the CSV 
Debug.WriteLine(csv.SaveToString())

' Save to a CSV file
success = csv.SaveFile("qa_output/customerDetailReport.csv")