(PowerBuilder) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
integer li_Success
oleobject loo_Http
string ls_JsonStr
oleobject loo_Json
oleobject loo_Csv
integer li_NumColumns
integer i
integer li_Row
integer li_NumRows
integer li_Col

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

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat_9_5_0.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Get the JSON we'll be parsing..
ls_JsonStr = loo_Http.QuickGetStr("https://www.chilkatsoft.com/exampleData/qb_customer_balance_detail_report_2.json")
if loo_Http.LastMethodSuccess <> 1 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    return
end if

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat_9_5_0.JsonObject")

loo_Json.Load(ls_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.
loo_Csv = create oleobject
li_rc = loo_Csv.ConnectToNewObject("Chilkat_9_5_0.Csv")

loo_Csv.HasColumnNames = 1

// Set the column names of the CSV.
li_NumColumns = loo_Json.SizeOfArray("Columns.Column")
if li_NumColumns < 0 then
    Write-Debug "Unable to get column names"
    destroy loo_Http
    destroy loo_Json
    destroy loo_Csv
    return
end if

i = 0
do while i < li_NumColumns
    loo_Json.I = i
    loo_Csv.SetColumnName(i,loo_Json.StringOf("Columns.Column[i].ColTitle"))
    i = i + 1
loop

// Let's get the rows.
// We'll ignore the Header and Summary, and just get the data.
li_Row = 0
li_NumRows = loo_Json.SizeOfArray("Rows.Row[0].Rows.Row")
if li_NumRows < 0 then
    Write-Debug "Unable to get data rows"
    destroy loo_Http
    destroy loo_Json
    destroy loo_Csv
    return
end if

do while li_Row < li_NumRows
    loo_Json.I = li_Row
    li_NumColumns = loo_Json.SizeOfArray("Rows.Row[0].Rows.Row[i].ColData")
    li_Col = 0
    do while li_Col < li_NumColumns
        loo_Json.J = li_Col
        loo_Csv.SetCell(li_Row,li_Col,loo_Json.StringOf("Rows.Row[0].Rows.Row[i].ColData[j].value"))
        li_Col = li_Col + 1
    loop
    li_Row = li_Row + 1
loop

// Show the CSV 
Write-Debug loo_Csv.SaveToString()

// Save to a CSV file
li_Success = loo_Csv.SaveFile("qa_output/customerDetailReport.csv")


destroy loo_Http
destroy loo_Json
destroy loo_Csv