(PureBasic) 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 PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkHttp.pb"
IncludeFile "CkJsonObject.pb"
IncludeFile "CkCsv.pb"

Procedure ChilkatExample()

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

    success.i
    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Get the JSON we'll be parsing..
    jsonStr.s = CkHttp::ckQuickGetStr(http,"https://www.chilkatsoft.com/exampleData/qb_customer_balance_detail_report_2.json")
    If CkHttp::ckLastMethodSuccess(http) <> 1
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        ProcedureReturn
    EndIf

    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoad(json,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.
    csv.i = CkCsv::ckCreate()
    If csv.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkCsv::setCkHasColumnNames(csv, 1)

    ; Set the column names of the CSV.
    numColumns.i = CkJsonObject::ckSizeOfArray(json,"Columns.Column")
    If numColumns < 0
        Debug "Unable to get column names"
        CkHttp::ckDispose(http)
        CkJsonObject::ckDispose(json)
        CkCsv::ckDispose(csv)
        ProcedureReturn
    EndIf

    i.i = 0
    While i < numColumns
        CkJsonObject::setCkI(json, i)
        CkCsv::ckSetColumnName(csv,i,CkJsonObject::ckStringOf(json,"Columns.Column[i].ColTitle"))
        i = i + 1
    Wend

    ; Let's get the rows.
    ; We'll ignore the Header and Summary, and just get the data.
    row.i = 0
    numRows.i = CkJsonObject::ckSizeOfArray(json,"Rows.Row[0].Rows.Row")
    If numRows < 0
        Debug "Unable to get data rows"
        CkHttp::ckDispose(http)
        CkJsonObject::ckDispose(json)
        CkCsv::ckDispose(csv)
        ProcedureReturn
    EndIf

    While row < numRows
        CkJsonObject::setCkI(json, row)
        numColumns = CkJsonObject::ckSizeOfArray(json,"Rows.Row[0].Rows.Row[i].ColData")
        col.i = 0
        While col < numColumns
            CkJsonObject::setCkJ(json, col)
            CkCsv::ckSetCell(csv,row,col,CkJsonObject::ckStringOf(json,"Rows.Row[0].Rows.Row[i].ColData[j].value"))
            col = col + 1
        Wend
        row = row + 1
    Wend

    ; Show the CSV 
    Debug CkCsv::ckSaveToString(csv)

    ; Save to a CSV file
    success = CkCsv::ckSaveFile(csv,"qa_output/customerDetailReport.csv")


    CkHttp::ckDispose(http)
    CkJsonObject::ckDispose(json)
    CkCsv::ckDispose(csv)


    ProcedureReturn
EndProcedure