(Lianja) 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.

loHttp = createobject("CkHttp")

// Get the JSON we'll be parsing..
lcJsonStr = loHttp.QuickGetStr("https://www.chilkatsoft.com/exampleData/qb_customer_balance_detail_report_2.json")
if (loHttp.LastMethodSuccess <> .T.) then
    ? loHttp.LastErrorText
    release loHttp
    return
endif

loJson = createobject("CkJsonObject")
loJson.Load(lcJsonStr)

// 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.
loCsv = createobject("CkCsv")
loCsv.HasColumnNames = .T.

// Set the column names of the CSV.
lnNumColumns = loJson.SizeOfArray("Columns.Column")
if (lnNumColumns < 0) then
    ? "Unable to get column names"
    release loHttp
    release loJson
    release loCsv
    return
endif

i = 0
do while i < lnNumColumns
    loJson.I = i
    loCsv.SetColumnName(i,loJson.StringOf("Columns.Column[i].ColTitle"))
    i = i + 1
enddo

// Let's get the rows.
// We'll ignore the Header and Summary, and just get the data.
lnRow = 0
lnNumRows = loJson.SizeOfArray("Rows.Row[0].Rows.Row")
if (lnNumRows < 0) then
    ? "Unable to get data rows"
    release loHttp
    release loJson
    release loCsv
    return
endif

do while lnRow < lnNumRows
    loJson.I = lnRow
    lnNumColumns = loJson.SizeOfArray("Rows.Row[0].Rows.Row[i].ColData")
    lnCol = 0
    do while lnCol < lnNumColumns
        loJson.J = lnCol
        loCsv.SetCell(lnRow,lnCol,loJson.StringOf("Rows.Row[0].Rows.Row[i].ColData[j].value"))
        lnCol = lnCol + 1
    enddo
    lnRow = lnRow + 1
enddo

// Show the CSV 
? loCsv.SaveToString()

// Save to a CSV file
llSuccess = loCsv.SaveFile("qa_output/customerDetailReport.csv")


release loHttp
release loJson
release loCsv