(VB.NET) 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

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' 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 = http.QuickGetStr("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")